[FieldData_FidalgoBay_July2017] - Water quality data and Olympia oyster abundance counts from depth-specific sampling collected by boat in Fidalgo Bay, WA, during July 2017 (RUI: Will climate change cause 'lazy larvae'? Effects of climate stressors on larval behavior and dispersal)

This dataset reports water quality data and Olympia oyster abundance counts from depth-specific sampling collected by boat in Fidalgo Bay, WA, during July 2017. These data were published in the following Masters Thesis: McIntyre, Brooke A., \Vertical Distribution of Olympia oyster (Ostrea lurida) larvae in Fidalgo Bay, WA\ (2018). WWU Graduate School Collection. 694. https://cedar.wwu.edu/wwuet/694

cdm_data_type = Other
VARIABLES:
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
date_local (unitless)
time_local (unitless)
tide_category (unitless)
profile (unitless)
depth_seafloor_m (Depth, meters)
depth_sample_m (Depth, meters)
depth_cat (Depth, unitless)
current_velocity_m_s (meters per second)
chla_ug_L (Concentration Of Chlorophyll In Sea Water, micrograms per liter seawater)
temp_c (degrees Celcius)
salinity (Sea Water Practical Salinity, PSU)
wind_anemometer_m_s (meters per second)
oyster_larvae_100L (Oyster Larvae 100 L, larvae per 100-Liters seawater)
oyster_larvae_m3 (larvae per cubic meter)


[Florida Straights 2015 MOC1 Larval Fish Counts] - Counts of larval fishes collected by a 1m2 Multiple Opening Closing Net and Environmental Sampling System (MOCNESS; MOC1) in a subtropical, pelagic environment from R/V F.G. Walton Smith cruise WS15161 in June 2015 (Spatial variability of larval fish in relation to their prey and predator fields: Patterns and interactions from cm to 10s of km in a subtropical, pelagic environment)

Counts of larval fishes collected by a 1m2 Multiple Opening Closing Net and Environmental Sampling System (MOCNESS; MOC1) in a subtropical, pelagic environment from R/V F.G. Walton Smith cruise WS15161 in June 2015.

cdm_data_type = Other
VARIABLES:
cruise_name (unitless)
cruise_id (unitless)
study (unitless)
station (unitless)
tow_type (unitless)
net (unitless)
date (unitless)
time_open (unitless)
time_closed (unitless)
depth_open (Depth, meters (m))
depth_close (Depth, meters (m))
tow_vol (cubic meters (m^3))
larval_fish_count (unitless)
latitude (degrees_north)
longitude (degrees_east)
lat_end (Latitude, decimal degrees)
lon_end (Longitude, decimal degrees)
time (ISO Date Time Start UTC, seconds since 1970-01-01T00:00:00Z)


[flow cytometry] - Direct counts (flow cytometry) on microbes obtained by Niskin bottle and pressure-retaining sampler from the Leggo Lander on R/V Falkor cruise FK141215 in the Challenger Deep, Mariana Trench in December 2014 (Patterns of Microbial Community Structure Within and Between Hadal Environments)

Direct counts (flow cytometry) on the microbes obtained in the Leggo drop 1 Niskin bottle and the Leg drop 1 pressure-retaining sampler.

cdm_data_type = Other
VARIABLES:
drop_name (unitless)
cells_per_mL (Cells Per M L, cells/mL)
time (ISO Date Time Deploy, seconds since 1970-01-01T00:00:00Z)
ISO_DateTime_recover (ISO Date Time Recover, unitless)
latitude (degrees_north)
longitude (degrees_east)


[Friday Harbor Labs - Weather Station Data] - Weather Station data from University of Washington Friday Harbor Laboratories, Friday Harbor WA, Cantilever Point from 2006 to 2024 (The effects of temperature on ecological processes in a rocky intertidal community: a mechanistic approach )

This dataset includes parameters measured by a weather station at the University of Washington Friday Harbor Laboratories, Friday Harbor WA, Cantilever Point from 2006 to 2024.

cdm_data_type = Other
VARIABLES:
Platform_ID (unitless)
latitude (degrees_north)
longitude (degrees_east)
Year (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
ISO_DateTime_PST (unitless)
Date_PST (unitless)
Time_PST (unitless)
Air_Temp (degrees Celsius)
RH (percent (%))
Rad_PAR (micromoles per square meter per second (?mol m-2 s-1))
Rad_Energy (watts per square meter (W m-2))
Rad_tot (watts per square meter (W m-2))
Rain (millimeters (mm))
Wind_speed (meters per second (m s-1))
Wind_direction (degrees (relative to true N))
Wind_Chill (degrees Celsius)


[Gastropod counts by species collected from inactive sulfides on the East Pacific Rise] - Gastropod counts by species collected from inactive sulfides on the East Pacific Rise during R/V Robert Revelle cruise RR2102 in April 2021 and R/V Atlantis cruise AT50-06 in December 2022 (RUI: Collaborative: The Predictive Nature of Microbial Biofilms for Cuing Larval Settlement at Deep-Sea Hydrothermal Vents)

This dataset provides counts by species for gastropods collected mainly from rock grabs at two inactive sulfide mounds (Lucky's Mound and Sentry Spire) near 9°47'N on the East Pacific Rise. Sampling was conducted on dives with HOV Alvin during R/V Atlantis cruise AT50-06 in December 2022 and with ROV Jason during R/V Robert Revelle cruise RR2102 in April 2021. Specimens were preserved in ethanol or fixed in formalin. Gastropods were identified morphologically to species (with genetic sequences obtained for a subset); two of the species were new to science as described by Chen et al. (2024). Counts are not comprehensive thus cannot be used for quantitative analyses. This dataset is provided in a single compiled table formatted as a Darwin Core Occurrence table for provision to the Ocean Biodiversity Information System.

cdm_data_type = Other
VARIABLES:
occurrenceID (unitless)
kingdom (unitless)
verbatimIdentification (unitless)
scientificName (unitless)
scientificNameID (unitless)
taxonRank (unitless)
identifiedBy (unitless)
identificationRemarks (unitless)
individualCount (integer count)
associatedSequences (unitless)
otherCatalogNumbers (unitless)
occurrenceStatus (unitless)
basisOfRecord (unitless)
verbatimLabel (unitless)
occurrenceRemarks (unitless)
eventID (unitless)
time (Eventdate, seconds since 1970-01-01T00:00:00Z)
locality (unitless)
latitude (Decimallatitude, degrees_north)
... (7 more variables)


[Geltrap micrographs] - Images of particles collected in sediment traps for quantitative analysis from multiple platforms from 2016-2017 (Collaborative Research: EAGER: Particle-specific DNA sequencing to directly observe ecological mechanisms of the biological pump)

Images of particles collected in sediment traps for quantitative analysis from multiple platforms from 2016-2017

cdm_data_type = Other
VARIABLES:
Cruise (unitless)
Trap_Platform (unitless)
Additional_Trap_Label (unitless)
Depth (meters)
Deployment_Duration_days (days)
latitude (degrees_north)
longitude (degrees_east)
Deploy_Date_UTC (unitless)
Deploy_Time_UTC (unitless)
Recover_Latitude (Latitude, decimal degrees)
Recover_Longitude (Longitude, decimal degrees)
Recover_Date_UTC (unitless)
Recover_Time_UTC (unitless)
time (Deploy Date Time, seconds since 1970-01-01T00:00:00Z)
recover_date_time (unitless)


[GN01 Arctic GEOTRACES Bottle Particles] - Trace element concentrations (labile and total measurements) in particles collected with GO-Flo bottles and analyzed with ICP-MS from the US GEOTRACES Arctic cruise (HLY1502; GN01) from August to October 2015 (U.S. Arctic GEOTRACES Study)

Trace element concentrations in particles collected with GO-Flo bottles and analyzed with ICP-MS. Concentrations of labile and total metal fractions are reported. Samples were collected during the U.S. Arctic GEOTRACES cruise aboard USCGC Healy (GN01; HLY1502) from August to October 2015.

cdm_data_type = Other
VARIABLES:
cruise_id (unitless)
EXPOCODE (unitless)
SECT_ID (unitless)
STNNBR (unitless)
CASTNO (unitless)
GEOTRC_EVENTNO (unitless)
DATE (unitless)
time2 (TIME, unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
SAMPNO (unitless)
BTLNBR (unitless)
BTL_FLAG_ODU (unitless)
CTDPRS (decibars)
depth (CTDDEPTH, m)
Station (unitless)
GEOTRC_SAMPNO (unitless)
Mo_TP_CONC_BOTTLE (pmol/kg)
Mo_TP_CONC_BOTTLE_FLAG (unitless)
Cd_TP_CONC_BOTTLE (pmol/kg)
Cd_TP_CONC_BOTTLE_FLAG (unitless)
Ba_TP_CONC_BOTTLE (pmol/kg)
Ba_TP_CONC_BOTTLE_FLAG (unitless)
Al_TP_CONC_BOTTLE (nmol/kg)
... (57 more variables)


[GN01 CTD - GTC Bottle] - Bottle data from the GEOTRACES Clean Carousel sampling system (GTC) on the Arctic Section cruise (HLY1502) from August to October 2015 (U.S. GEOTRACES Arctic project) (U.S. Arctic GEOTRACES Study)

Bottle data from the GEOTRACES Clean Carousel sampling system (GTC) on the Arctic Section cruise (HLY1502) from August to October 2015.

cdm_data_type = Other
VARIABLES:
cruise_id (unitless)
EXPOCODE (unitless)
SECT_ID (unitless)
STNNBR (unitless)
CASTNO (unitless)
GEOTRC_EVENTNO (unitless)
DATE (unitless)
time2 (TIME, unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
GEOTRC_SAMPNO (unitless)
SAMPNO (unitless)
BTLNBR (unitless)
BTLNBR_FLAG_W (unitless)
CTDPRS (decibars)
depth (CTDDEPTH, m)
CTDTMP (degrees celsius)
CTDSAL (PSS-78)
CTDSAL_FLAG_W (unitless)
SALNTY (PSS-78)
SALNTY_FLAG_W (unitless)
SALTREF (Sea Water Practical Salinity, G/KG)
SALTREF_FLAG_W (unitless)
CTDOXY (UMOL/KG)
CTDOXY_FLAG_W (unitless)
... (31 more variables)


[GN01 CTD - GTC Profiles] - CTD-GTC profiles from GEOTRACES-Arctic Section cruise HLY1502 in 2015 (U.S. GEOTRACES Arctic project) (U.S. Arctic GEOTRACES Study)

CTD-GTC profiles from GEOTRACES-Arctic Section cruise HLY1502 in 2015

cdm_data_type = Other
VARIABLES:
cruise_id (text)
EXPOCODE (text)
SECT_ID (text)
GEOTRC_EVENTNO (dimensionless)
STNNBR (dimensionless)
CASTNO (dimensionless)
DATE (unitless)
time2 (TIME, HHMM)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
BTMDEPTH (meters)
INSTRUMENT_ID (dimensionless)
CTDPRS (DBARS)
CTDPRS_FLAG_W (dimensionless)
CTDTMP (degrees celsius)
CTDTMP_FLAG_W (dimensionless)
CTDSAL (PSS-78)
CTDSAL_FLAG_W (dimensionless)
CTDOXY (UMOL/KG)
CTDOXY_FLAG_W (dimensionless)
TRANSM (volts)
TRANSM_FLAG_W (dimensionless)
FLUORM (volts)
FLUORM_FLAG_W (dimensionless)
DEPTH (meters)
DEPTH_FLAG_W (Depth, unitless)
CTDNOBS (dimensionless)
CTDETIME (SECONDS)


[GN01 CTD - ODF Bottle] - Bottle data from the CTD-ODF carousel on the GEOTRACES Arctic Section cruise (HLY1502) from August to October 2015 (U.S. GEOTRACES Arctic project) (U.S. Arctic GEOTRACES Study)

Bottle data from the CTD-ODF carousel on the GEOTRACES Arctic Section cruise (HLY1502) from August to October 2015.

cdm_data_type = Other
VARIABLES:
cruise_id (unitless)
EXPOCODE (unitless)
SECT_ID (unitless)
STNNBR (unitless)
CASTNO (unitless)
GEOTRC_EVENTNO (unitless)
DATE (unitless)
time2 (TIME, unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
GEOTRC_SAMPNO (unitless)
SAMPNO (unitless)
BTLNBR (unitless)
BTLNBR_FLAG_W (unitless)
DEPTH (meters (corrected))
CTDPRS (decibars)
depth (CTDDEPTH, m)
CTDTMP (degrees Celsius)
CTDSAL (PSS-78)
CTDSAL_FLAG_W (unitless)
SALNTY (PSS-78)
SALNTY_FLAG_W (unitless)
SALTREF (Sea Water Practical Salinity, G/KG)
SALTREF_FLAG_W (unitless)
CTDOXY (UMOL/KG)
... (34 more variables)


[GN01 Dissolved and Labile Cobalt] - Dissolved and labile cobalt from the USCGC Healy HLY1502 in the Canada and Makarov Basins of the Arctic Ocean from August to October 2015 (U.S. GEOTRACES Arctic project) (U.S. Arctic GEOTRACES Study)

Dissolved and labile cobalt from the USCGC Healy HLY1502 in the Canada and Makarov Basins of the Arctic Ocean from August to October 2015 (U.S. GEOTRACES Arctic project).

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (End ISO Date Time UTC, unitless)
latitude (degrees_north)
longitude (degrees_east)
End_Latitude (Latitude, decimal degrees North)
End_Longitude (Longitude, decimal degrees East)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample Depth, m)
Co_D_CONC_BOTTLE_iojqqp (picomoles per liter (pmol/L))
SD1_Co_D_CONC_BOTTLE_iojqqp (picomoles per liter (pmol/L))
Flag_Co_D_CONC_BOTTLE_iojqqp (unitless)
Co_DL_CONC_BOTTLE_8zqltr (picomoles per liter (pmol/L))
SD1_Co_DL_CONC_BOTTLE_8zqltr (picomoles per liter (pmol/L))
Flag_Co_DL_CONC_BOTTLE_8zqltr (unitless)
Co_D_CONC_BOAT_PUMP_cs8ogw (picomoles per liter (pmol/L))
SD1_Co_D_CONC_BOAT_PUMP_cs8ogw (picomoles per liter (pmol/L))
Flag_Co_D_CONC_BOAT_PUMP_cs8ogw (unitless)
Co_DL_CONC_BOAT_PUMP_lthdda (picomoles per liter (pmol/L))
SD1_Co_DL_CONC_BOAT_PUMP_lthdda (picomoles per liter (pmol/L))
Flag_Co_DL_CONC_BOAT_PUMP_lthdda (unitless)


[GN01 Dissolved Fe(II)] - Dissolved Fe(II) from the southbound leg of the US GEOTRACES Arctic cruise (HLY1502) on USCGC Healy from August to October 2015 (U.S. Arctic GEOTRACES Study)

Dissolved Fe(II) concentrations were determined using an automated flow injection analysis system (FeLume II Waterville Analytical) employing a luminol chemiluminescence based detection system as described in King et al. (1995) and Heller et al. (2017).\r\n\r\nFrom published and ongoing work in the Peru and Chile oxygen minimum zones an optimized methodology for Fe(II) detection by luminol has been described in Croot et al. (2019). This work details some of the challenges and limitations of using luminol for dFe(II) detection. It should be noted that as Fe(II) is a transient redox species with a short half life in oxygenated seawater that is dependent on dissolved oxygen and pH, it is not possible to archive (preserve) samples for later analysis. Intercalibrations for Fe(II) have yet to be conducted in the context of GEOTRACES studies and should be pursued where logistically possible.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
time (Start Time UTC, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
latitude (degrees_north)
longitude (degrees_east)
End_Latitude (Latitude, degrees North)
End_Longitude (Longitude, degrees East)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample Depth, m)
Fe_II_D_CONC_BOTTLE_07ordp (nanomoles per kilogram (nmol/kg))
SD1_Fe_II_D_CONC_BOTTLE_07ordp (nanomoles per kilogram (nmol/kg))
Flag_Fe_II_D_CONC_BOTTLE_07ordp (unitless)
Fe_II_D_CONC_ICE (nanomoles per kilogram (nmol/kg))
SD1_Fe_II_D_CONC_ICE (nanomoles per kilogram (nmol/kg))
Flag_Fe_II_D_CONC_ICE (unitless)
... (5 more variables)


[GN01 Dissolved Methane (CH₄)] - Dissolved methane (CH₄) concentrations from the U.S. GEOTRACES Arctic cruise (HLY1502; GN01) on USCGC Healy from August to October 2015 (U.S. Arctic GEOTRACES Study (GN01))

This dataset reports dissolved methane (CH₄) concentrations from the US GEOTRACES Arctic Expedition on USCGC Healy (GN01, HLY1502) from August to October 2015. Seawater samples were collected using the ODF rosette. Both GEOTRACES samples and GO-SHIP samples from the same cruise were analyzed. Methane was analyzed using cavity ringdown spectroscopy to determine its concentration in an equilibrated headspace. Arctic waters are a possibly significant source of this Greenhouse Gas to the atmosphere and global change is likely exacerbating its release. Methane is also a potentially valuable indicator of interactions with the shelf as well as of river inputs. Dissolved methane concentrations in this section were highest over the continental shelves and slope, which supports our understanding of the major sources of methane (i.e., from microbes in oxygen-limited sediments, from gas seeps, and from gas-hydrates).

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Event_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
Rosette_Position (unitless)
Sample_ID (unitless)
depth (Sample_depth, m)
CH4_D_CONC_BOTTLE_fiwgyy (nanomoles per kilogram (nmol/kg))
SD1_CH4_D_CONC_BOTTLE_fiwgyy (nanomoles per kilogram (nmol/kg))
Flag_CH4_D_CONC_BOTTLE_fiwgyy (unitless)


[GN01 Dissolved Micronutrient Trace Metals] - Concentrations of dissolved micronutrient trace metals (Fe, Zn, Ni, Cu, Cd, Pb, Mn) in seawater, sea ice, and melt ponds collected during the US GEOTRACES Arctic cruise (HLY1502; GN01) on USCGC Healy from August to October 2015 (U.S. Arctic GEOTRACES Study)

Concentrations of dissolved micronutrient trace metals (Fe, Zn, Ni, Cu, Cd, Pb, Mn) in seawater, sea ice, and melt ponds collected on the US GEOTRACES Arctic cruise (HLY1502, GN01) from August to October 2015.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (End ISO Date Time UTC, unitless)
latitude (degrees_north)
longitude (degrees_east)
End_Latitude (Latitude, decimal degrees North)
End_Longitude (Longitude, decimal degrees East)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample Depth, m)
Fe_D_CONC_BOAT_PUMP_seyj5m (nanomoles per kilogram (nmol/kg))
SD1_Fe_D_CONC_BOAT_PUMP_seyj5m (nanomoles per kilogram (nmol/kg))
Flag_Fe_D_CONC_BOAT_PUMP_seyj5m (None)
Fe_D_CONC_BOTTLE_mbve6p (nanomoles per kilogram (nmol/kg))
SD1_Fe_D_CONC_BOTTLE_mbve6p (nanomoles per kilogram (nmol/kg))
Flag_Fe_D_CONC_BOTTLE_mbve6p (None)
Fe_D_CONC_MELTPOND_PUMP_aovig3 (nanomoles per kilogram (nmol/kg))
SD1_Fe_D_CONC_MELTPOND_PUMP_aovig3 (nanomoles per kilogram (nmol/kg))
Flag_Fe_D_CONC_MELTPOND_PUMP_aovig3 (None)
Fe_D_CONC_SUBICE_PUMP_xw9ez2 (nanomoles per kilogram (nmol/kg))
SD1_Fe_D_CONC_SUBICE_PUMP_xw9ez2 (nanomoles per kilogram (nmol/kg))
... (73 more variables)


[GN01 Dissolved REEs OSU] - Dissolved REE concentrations and Nd isotopes from the US GEOTRACES Arctic USCGC Healy cruise HLY1502 from August to September 2015 (U.S. Arctic GEOTRACES Study)

Dissolved REE concentrations and Nd isotopes from the US GEOTRACES Arctic USCGC Healy cruise HLY1502 from August to September 2015.

cdm_data_type = Other
VARIABLES:
Cruise (unitless)
STNNBR (unitless)
GEOTRC_SAMPNO (unitless)
depth (CTDDEPTH, m)
DATE (unitless)
time2 (TIME, unitless)
latitude (degrees_north)
longitude (degrees_east)
La_D_CONC_BOTTLE (picomoles per kilogram (pmol/kg))
La_D_CONC_BOTTLE_QV_IODE (unitless)
Ce_D_CONC_BOTTLE (pmol/kg)
Ce_D_CONC_BOTTLE_QV_IODE (unitless)
Pr_D_CONC_BOTTLE (pmol/kg)
Pr_D_CONC_BOTTLE_QV_IODE (unitless)
Nd_D_CONC_BOTTLE (pmol/kg)
Nd_D_CONC_BOTTLE_QV_IODE (unitless)
Sm_D_CONC_BOTTLE (pmol/kg)
Sm_D_CONC_BOTTLE_QV_IODE (unitless)
Eu_D_CONC_BOTTLE (pmol/kg)
Eu_D_CONC_BOTTLE_QV_IODE (unitless)
Gd_D_CONC_BOTTLE (pmol/kg)
Gd_D_CONC_BOTTLE_QV_IODE (unitless)
Tb_D_CONC_BOTTLE (pmol/kg)
Tb_D_CONC_BOTTLE_QV_IODE (unitless)
Dy_D_CONC_BOTTLE (pmol/kg)
Dy_D_CONC_BOTTLE_QV_IODE (unitless)
... (14 more variables)


[GN01 Element quotas of individual phytoplankton cells] - Element quotas of individual phytoplankton cells from samples collected on the US GEOTRACES Arctic cruise GN01 (HLY1502) on USCGC Healy in August-October 2015 (U.S. Arctic GEOTRACES Study (GN01))

Individual phytoplankton cells were collected on the US GEOTRACES Arctic cruise GN01 (HLY1502) on USCGC Healy in August-October 2015. The elemental (Si, P, S, Mn, Fe, Co, Ni, Cu, Zn) content of each cell was measured with synchrotron x-ray fluorescence (SXRF). Carbon was calculated from biovolume. Data can be used to assess biogenic particulate metal fraction, as well as changes in the accumulation of these elements across environmental gradients. Data are part of the larger international GEOTRACES dataset.

cdm_data_type = Other
VARIABLES:
Run (unitless)
Cruise (unitless)
Station (unitless)
latitude (Lat_n, degrees_north)
longitude (Lon_e, degrees_east)
Date (unitless)
Start_time (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
depth (m)
DepthDescr (unitless)
GEOTRC_SAMPNO (unitless)
CellType (unitless)
MDA (unitless)
UniqueCell (unitless)
GridType (unitless)
Volume (cubic microns)
cellC (moles)
cellSi (moles)
cellP (moles)
cellS (moles)
cellMn (moles)
cellFe (moles)
... (7 more variables)


[GN01 Fe Zn Cd Stable Isotopes] - Concentrations and stable isotope ratios of Fe, Zn, and Cd from the US GEOTRACES Arctic cruise GN01 (HLY1502) from August to October 2015 (U.S. Arctic GEOTRACES Study)

Concentrations and stable isotope ratios of Fe, Zn, and Cd from the US GEOTRACES Arctic cruise GN01 (HLY1502) from August to October 2015. A subset of these data has been published in Zhang et al., 2019.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (End ISO Date Time UTC, unitless)
latitude (degrees_north)
longitude (degrees_east)
End_Latitude (Latitude, degrees North)
End_Longitude (Longitude, degrees East)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample Depth, m)
Cd_D_CONC_BOTTLE_zd8dwc (nmol/kg)
SD1_Cd_D_CONC_BOTTLE_zd8dwc (nmol/kg)
Flag_Cd_D_CONC_BOTTLE_zd8dwc (unitless)
Cd_114_110_D_DELTA_BOTTLE_hzoojp (per mil)
SD1_Cd_114_110_D_DELTA_BOTTLE_hzoojp (per mil)
Flag_Cd_114_110_D_DELTA_BOTTLE_hzoojp (unitless)
Fe_56_54_D_DELTA_BOTTLE_uudhui (per mil)
SD1_Fe_56_54_D_DELTA_BOTTLE_uudhui (per mil)
Flag_Fe_56_54_D_DELTA_BOTTLE_uudhui (unitless)
Zn_66_64_D_DELTA_BOTTLE_i6ay6z (per mil)
SD1_Zn_66_64_D_DELTA_BOTTLE_i6ay6z (per mil)
... (214 more variables)


[GN01 Particulate and Dissolved Po-210 and Pb-210] - Particulate & dissolved Po-210 & Pb-210 in seawater, snow, melt ponds, ice core, ice-rafted sediments, and aerosols from the US GEOTRACES Arctic cruise (HLY1502) on USCGC Healy from August to October 2015 (U.S. Arctic GEOTRACES Study)

Particulate & dissolved Po-210 & Pb-210 in seawater, snow, melt ponds, ice core, ice-rafted sediments, and aerosols from the US GEOTRACES Arctic cruise (HLY1502) on USCGC Healy from August to October 2015.

cdm_data_type = Other
VARIABLES:
data_type (unitless)
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
time (ISO Date Time UTC Start, seconds since 1970-01-01T00:00:00Z)
ISO_DateTime_UTC_End (ISO Date Time UTC End, unitless)
latitude (degrees_north)
longitude (degrees_east)
End_Latitude (Latitude, decimal degrees)
End_Longitude (Longitude, decimal degrees)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample Depth, m)
Pb_210_A_T_CONC_HIVOL_7io704 (dpm/100m^-3)
SD1_Pb_210_A_T_CONC_HIVOL_7io704 (dpm/100m^-3)
Flag_Pb_210_A_T_CONC_HIVOL_7io704 (unitless)
Po_210_A_T_CONC_HIVOL_th4b6v (dpm/100 m^3)
SD1_Po_210_A_T_CONC_HIVOL_th4b6v (dpm/100 m^3)
Flag_Po_210_A_T_CONC_HIVOL_th4b6v (unitless)
Pb_210_D_CONC_MELTPOND_PUMP_l1tcik (dpm/100L^-1)
SD1_Pb_210_D_CONC_MELTPOND_PUMP_l1tcik (dpm/100L^-1)
Flag_Pb_210_D_CONC_MELTPOND_PUMP_l1tcik (unitless)
Po_210_D_CONC_MELTPOND_PUMP_jltiiz (dpm/100L^-1)
... (38 more variables)


[GN01 Po-Pb Dissolved and Large Particles] - Dissolved and large particulate Polonium 210 and Lead 210 measurements from the Western Arctic Ocean, which were sampled as part of the 2015 US GEOTRACES Cruise, HLY1502 (GN01), on USCGC Healy (U.S. Arctic GEOTRACES Study)

This dataset includes dissolved and large particulate Polonium 210 and Lead 210 measurements from the Western Arctic Ocean, which were sampled as part of the 2015 US GEOTRACES Cruise (GN01; HLY1502). These data have been published in Bam et al., 2020.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (End ISO Date Time UTC, unitless)
latitude (degrees_north)
longitude (degrees_east)
End_Latitude (Latitude, degrees North)
End_Longitude (Longitude, degrees East)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample Depth, m)
Po_210_D_CONC_BOTTLE_ew3ohk (mBq/kg)
SD1_Po_210_D_CONC_BOTTLE_ew3ohk (mBq/kg)
Flag_Po_210_D_CONC_BOTTLE_ew3ohk (None)
Pb_210_D_CONC_BOTTLE_7dsufq (mBq/kg)
SD1_Pb_210_D_CONC_BOTTLE_7dsufq (mBq/kg)
Flag_Pb_210_D_CONC_BOTTLE_7dsufq (None)
Pb_210_LPT_CONC_PUMP_lb5dhk (mBq/kg)
SD1_Pb_210_LPT_CONC_PUMP_lb5dhk (mBq/kg)
Flag_Pb_210_LPT_CONC_PUMP_lb5dhk (None)
Po_210_LPT_CONC_PUMP_x4etpu (mBq/kg)
SD1_Po_210_LPT_CONC_PUMP_x4etpu (mBq/kg)
Flag_Po_210_LPT_CONC_PUMP_x4etpu (None)


[GN01 Po-Pb Small Particles] - Small particulate Polonium 210 and Lead 210 measurements from the Western Arctic Ocean, which were sampled as part of the 2015 US GEOTRACES Cruise, HLY1502 (GN01), on USCGC Healy (U.S. Arctic GEOTRACES Study)

This dataset includes small particulate Polonium 210 and Lead 210 measurements from the Western Arctic Ocean, which were sampled as part of the 2015 US GEOTRACES Cruise (GN01; HLY1502). These data have been published in Bam et al., 2020.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (End ISO Date Time UTC, unitless)
latitude (degrees_north)
longitude (degrees_east)
End_Latitude (Latitude, degrees North)
End_Longitude (Longitude, degrees East)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample Depth, m)
Pb_210_SPT_CONC_PUMP_cbmm3u (mBq/kg)
SD1_Pb_210_SPT_CONC_PUMP_cbmm3u (mBq/kg)
Flag_Pb_210_SPT_CONC_PUMP_cbmm3u (None)
Po_210_SPT_CONC_PUMP_5c1vo9 (mBq/kg)
SD1_Po_210_SPT_CONC_PUMP_5c1vo9 (mBq/kg)
Flag_Po_210_SPT_CONC_PUMP_5c1vo9 (None)


[GN01 Radium and Thorium] - Radium and thorium isotopes measured in the Western Arctic as part of the 2015 US GEOTRACES Arctic Cruise on the USCGC Healy (HLY1502) from August to October 2015 (U.S. Arctic GEOTRACES Study)

Radium and thorium isotopes measured in the Western Arctic as part of the 2015 US GEOTRACES Arctic Cruise on the USCGC Healy (HLY1502) from August to October 2015.

cdm_data_type = Other
VARIABLES:
Cruise_ID (unitless)
GEOTRC_CASTNO (unitless)
GEOTRC_INSTR (unitless)
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (End ISO Date Time UTC, unitless)
latitude (degrees_north)
longitude (degrees_east)
End_Latitude (Latitude, degrees North)
End_Longitude (Longitude, degrees East)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample Depth, m)
Ra_226_D_CONC_PUMP_tmldld (mBq/kg)
SD1_Ra_226_D_CONC_PUMP_tmldld (mBq/kg)
Flag_Ra_226_D_CONC_PUMP_tmldld (unitless)
Ra_228_D_CONC_PUMP_5i7kz7 (mBq/kg)
SD1_Ra_228_D_CONC_PUMP_5i7kz7 (mBq/kg)
Flag_Ra_228_D_CONC_PUMP_5i7kz7 (unitless)
Ra_224_D_CONC_PUMP_ryelyc (mBq/kg)
SD1_Ra_224_D_CONC_PUMP_ryelyc (mBq/kg)
Flag_Ra_224_D_CONC_PUMP_ryelyc (unitless)
... (12 more variables)


[GN01 Silicon Stable Isotopes] - Depth profiles of the isotopic composition (d30Si) of silicon within dissolved silicic acid on the US GEOTRACES Arctic cruise GN01 (HLY1502) from August to October 2015 (U.S. Arctic GEOTRACES Study)

The isotopic composition of dissolved silicon (\u03b430Si) has proven to be a powerful tool to better understand the marine Si cycle. The \u03b430Si of seawater carries information about DSi utilization in surface waters, the subsequent dissolution of sinking biogenic material as well as water mass mixing. This data set supplies information on the spatial distribution of isotopes of Si within water masses in the Arctic Ocean from the Bering Strait to the north pole. Profiles of silicon isotopes within silicic acid, \u03b430Si(OH)4, were obtained at a total of 15 stations on the GEOTRACES GN01 cruise

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (End ISO Date Time UTC, unitless)
latitude (degrees_north)
longitude (degrees_east)
End_Latitude (Latitude, decimal degrees)
End_Longitude (Longitude, decimal degrees)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample Depth, m)
SILICATE_30_28_D_DELTA_BOTTLE_5ib7da (Mass Concentration Of Silicate In Sea Water, per mil)
SD1_SILICATE_30_28_D_DELTA_BOTTLE_5ib7da (Mass Concentration Of Silicate In Sea Water, per mil)
Flag_SILICATE_30_28_D_DELTA_BOTTLE_5ib7da (unitless)


[GN01 Size-fractionated major and minor particles] - Size-fractionated major and minor particle composition and concentration from the US GEOTRACES Arctic cruise (HLY1502) on USCGC Healy from August to October 2015 (U.S. Arctic GEOTRACES Study)

Size-fractionated major and minor particle composition and concentration from the U.S. GEOTRACES Arctic Cruise (GN01) in 2015.

cdm_data_type = Other
VARIABLES:
Cruise (None)
latitude (degrees_north)
longitude (degrees_east)
Station_ID (None)
cast (None)
Event_ID (None)
Start_Date_UTC (None)
Start_Time_UTC (None)
time (Start ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
Sample_ID (None)
depth (Sample Depth, m)
Bot_Depth (meters (m))
sliters (liters (L))
qliters (liters (L))
Y_LPT_CONC_PUMP_3xbuwf (pmol/kg)
Flag_Y_LPT_CONC_PUMP_3xbuwf (None)
SD1_Y_LPT_CONC_PUMP_3xbuwf (pmol/kg)
Y_SPT_CONC_PUMP_hg18wa (pmol/kg)
Flag_Y_SPT_CONC_PUMP_hg18wa (None)
SD1_Y_SPT_CONC_PUMP_hg18wa (pmol/kg)
Mo_LPT_CONC_PUMP_wzplcd (pmol/kg)
Flag_Mo_LPT_CONC_PUMP_wzplcd (None)
SD1_Mo_LPT_CONC_PUMP_wzplcd (pmol/kg)
Mo_SPT_CONC_PUMP_ayjtto (pmol/kg)
Flag_Mo_SPT_CONC_PUMP_ayjtto (None)
SD1_Mo_SPT_CONC_PUMP_ayjtto (pmol/kg)
... (212 more variables)


[GN01 Total Aerosol Concentrations] - Concentrations of aerosol trace elements collected from bulk aerosol samples on the 2015 US GEOTRACES Western Arctic Transect cruise on USCGC Healy (HLY1502) from August to October 2015 (U.S. Arctic GEOTRACES Study)

This dataset contains concentrations of aerosol trace elements collected from bulk aerosol samples on the 2015 US GEOTRACES Western Arctic Transect (USCG Healy GN01).

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
latitude (degrees_north)
longitude (degrees_east)
End_Latitude (Latitude, decimal degrees North)
End_Longitude (Longitude, decimal degrees East)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample Depth, m)
Al_A_T_CONC_HIVOL_hhnotu (picomoles per cubic meter (pmol/m3))
SD1_Al_A_T_CONC_HIVOL_hhnotu (picomoles per cubic meter (pmol/m3))
Flag_Al_A_T_CONC_HIVOL_hhnotu (None)
Cd_A_T_CONC_HIVOL_crirkf (picomoles per cubic meter (pmol/m3))
SD1_Cd_A_T_CONC_HIVOL_crirkf (picomoles per cubic meter (pmol/m3))
Flag_Cd_A_T_CONC_HIVOL_crirkf (None)
Co_A_T_CONC_HIVOL_hz1byp (picomoles per cubic meter (pmol/m3))
SD1_Co_A_T_CONC_HIVOL_hz1byp (picomoles per cubic meter (pmol/m3))
Flag_Co_A_T_CONC_HIVOL_hz1byp (None)
Cr_A_T_CONC_HIVOL_tgwnfu (picomoles per cubic meter (pmol/m3))
SD1_Cr_A_T_CONC_HIVOL_tgwnfu (picomoles per cubic meter (pmol/m3))
Flag_Cr_A_T_CONC_HIVOL_tgwnfu (None)
Cu_A_T_CONC_HIVOL_vryvm8 (picomoles per cubic meter (pmol/m3))
SD1_Cu_A_T_CONC_HIVOL_vryvm8 (picomoles per cubic meter (pmol/m3))
... (27 more variables)


[GN01 Ultrapure Water Soluble Aerosol Concentrations] - Concentrations of ultrapure water soluble aerosol trace elements collected from bulk aerosol samples on the 2015 US GEOTRACES Western Arctic Transect on USCGC Healy (HLY1502) August to October 2015 (U.S. Arctic GEOTRACES Study)

This dataset contains concentrations of ultrapure water soluble aerosol trace elements collected from bulk aerosol samples on the 2015 US GEOTRACES Western Arctic Transect (USCG Healy GN01).

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (End ISO Date Time UTC, unitless)
latitude (degrees_north)
longitude (degrees_east)
End_Latitude (Latitude, decimal degrees North)
End_Longitude (Longitude, decimal degrees East)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample Depth, m)
Al_A_SMLH2O_CONC_HIVOL_pgewna (Al A SMLH2 O CONC HIVOL Pgewna, picomoles per cubic meter (pmol/m3))
SD1_Al_A_SMLH2O_CONC_HIVOL_pgewna (SD1 Al A SMLH2 O CONC HIVOL Pgewna, picomoles per cubic meter (pmol/m3))
Flag_Al_A_SMLH2O_CONC_HIVOL_pgewna (Flag Al A SMLH2 O CONC HIVOL Pgewna, None)
Cd_A_SMLH2O_CONC_HIVOL_eptd5x (Cd A SMLH2 O CONC HIVOL Eptd5x, picomoles per cubic meter (pmol/m3))
SD1_Cd_A_SMLH2O_CONC_HIVOL_eptd5x (SD1 Cd A SMLH2 O CONC HIVOL Eptd5x, picomoles per cubic meter (pmol/m3))
Flag_Cd_A_SMLH2O_CONC_HIVOL_eptd5x (Flag Cd A SMLH2 O CONC HIVOL Eptd5x, None)
Co_A_SMLH2O_CONC_HIVOL_ehznjw (Co A SMLH2 O CONC HIVOL Ehznjw, picomoles per cubic meter (pmol/m3))
SD1_Co_A_SMLH2O_CONC_HIVOL_ehznjw (SD1 Co A SMLH2 O CONC HIVOL Ehznjw, picomoles per cubic meter (pmol/m3))
Flag_Co_A_SMLH2O_CONC_HIVOL_ehznjw (Flag Co A SMLH2 O CONC HIVOL Ehznjw, None)
Cu_A_SMLH2O_CONC_HIVOL_2cnllt (Cu A SMLH2 O CONC HIVOL 2cnllt, picomoles per cubic meter (pmol/m3))
SD1_Cu_A_SMLH2O_CONC_HIVOL_2cnllt (SD1 Cu A SMLH2 O CONC HIVOL 2cnllt, picomoles per cubic meter (pmol/m3))
Flag_Cu_A_SMLH2O_CONC_HIVOL_2cnllt (Flag Cu A SMLH2 O CONC HIVOL 2cnllt, None)
... (18 more variables)


[GO-SHIP A16N 2023 d13C DIC] - Stable carbon isotope of dissolved inorganic carbon (δ13C-DIC) collected during the Global Ocean Ship-based Hydrographic Investigations Program (GO-SHIP) A16N cruises on R/V Ronald Brown between March and May 2023 (Measurements of stable carbon isotopes on board GO-SHIP cruises in the South Atlantic Ocean to enhance our ability to quantify anthropogenic CO2 uptake rates by the ocean)

These data include the stable carbon isotope of dissolved inorganic carbon (δ13C-DIC) collected during the Global Ocean Ship-based Hydrographic Investigations Program (GO-SHIP) A16N cruise in 2023. The cruise was divided into two legs and all aboard the R/V Ronald H. Brown between dates 2023-03-06 and 2023-05-09 in the North Atlantic Ocean. An automated, efficient, and high-precision method for ship-based δ13C-DIC analysis based on Cavity Ring-Down Spectroscopy (CRDS) was used. Stable isotopes of carbon can be used as a "signature" to identify fossil fuel-derived carbon dioxide in the atmosphere and ocean. These data were collected by Dr. Wei-Jun Cai's group of the University of Delaware.

cdm_data_type = Other
VARIABLES:
EXPOCODE (unitless)
SECT_ID (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
DATE (unitless)
TIME_UTC (unitless)
STATION (unitless)
NISKIN (unitless)
latitude (degrees_north)
longitude (degrees_east)
depth (m)
DELC13 (per mil (‰))
DELC13_FLAG (unitless)


[GP09 dissolved trace elements] - Dissolved trace elements in profiles and surface waters collected during the Chinese GEOTRACES cruise (GP09) in the tropical northwest Pacific Ocean from April to June 2019 (Dissolved trace elements in the tropical Northwest Pacific Ocean)

This is a study of dissolved trace elements in profiles and surface waters collected during the Spring 2019 Chinese GEOTRACES cruise (GP09) in the tropical northwest Pacific Ocean. GP09 afforded the opportunity to obtain trace element clean water samples (provided by the cruise organizers) from a region that is geologically complex as well as being a meeting place for various ocean currents and water masses. GP09 sampled the southwest corner of the North Pacific subtropical gyre, one of the largest oligotropic ocean regions and arguably the largest continuous ecosystem on Earth. Yet this region has been poorly studied for trace element distributions. We determined dissolved trace element concentrations by using established high-resolution ICP-MS methods.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Event_ID (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
End_Latitude (degrees_north)
End_Longitude (degrees_east)
Rosette_Position (unitless)
Sample_ID (unitless)
depth (Sample_depth, m)
Ba_D_CONC_BOTTLE_itzwe9 (nanomoles per kilogram (nmol/kg))
SD1_Ba_D_CONC_BOTTLE_itzwe9 (nanomoles per kilogram (nmol/kg))
Flag_Ba_D_CONC_BOTTLE_itzwe9 (unitless)
Cu_D_CONC_BOTTLE_ccmjgy (nanomoles per kilogram (nmol/kg))
SD1_Cu_D_CONC_BOTTLE_ccmjgy (nanomoles per kilogram (nmol/kg))
... (133 more variables)


[GP15 Aerosol Pb and Pb Isotopes Leg 1] - Aerosol lead (Pb) and Pb isotopes from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

Dr. Chris Marsay collected shipboard aerosol samples during the U.S. GEOTRACES GP15 Pacific Meridional Transect cruise on R/V Revelle from October to November 2018 and provided subsamples to Massachusetts Institute of Technology (MIT) for lead (Pb) and Pb isotope analyses. These were carried out by undergraduate student Avery Wang and Research Scientist Jahander Ramezani. The north-south transect shows large Pb concentration and Pb isotope changes. The Pb concentration variability is very similar to the Pb concentrations measured independently by Dr. Marsay. The Pb isotope ratios show a strong Chinese signature in the northern portion of the transect, and ratios more similar to American and Australian signatures further south.

cdm_data_type = Other
VARIABLES:
Event_ID (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
End_Latitude (degrees_north)
End_Longitude (degrees_east)
Sample_Position (unitless)
Sample_ID (unitless)
Pb_A_T_CONC_HIVOL_tsmsme (femtomoles per cubic meter (fmol/m^3))
SD1_Pb_A_T_CONC_HIVOL_tsmsme (femtomoles per cubic meter (fmol/m^3))
Flag_Pb_A_T_CONC_HIVOL_tsmsme (unitless)
Pb_206_207_A_T_RATIO_HIVOL_r8aus4 (unitless)
SD1_Pb_206_207_A_T_RATIO_HIVOL_r8aus4 (unitless)
Flag_Pb_206_207_A_T_RATIO_HIVOL_r8aus4 (unitless)
Pb_208_207_A_T_RATIO_HIVOL_ybtdvk (unitless)
SD1_Pb_208_207_A_T_RATIO_HIVOL_ybtdvk (unitless)
Flag_Pb_208_207_A_T_RATIO_HIVOL_ybtdvk (unitless)
Pb_206_204_A_T_RATIO_HIVOL_w1gtye (unitless)
SD1_Pb_206_204_A_T_RATIO_HIVOL_w1gtye (unitless)
Flag_Pb_206_204_A_T_RATIO_HIVOL_w1gtye (unitless)


[GP15 Aerosol Pb and Pb Isotopes Leg 2] - Aerosol lead (Pb) and Pb isotopes from Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from Oct-Nov 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

Dr. Chris Marsay collected shipboard aerosol samples during the U.S. GEOTRACES GP15 Pacific Meridional Transect cruise on R/V Revelle from October to November 2018 and provided subsamples to Massachusetts Institute of Technology (MIT) for lead (Pb) and Pb isotope analyses. These were carried out by undergraduate student Avery Wang and Research Scientist Jahander Ramezani. The north-south transect shows large Pb concentration and Pb isotope changes. The Pb concentration variability is very similar to the Pb concentrations measured independently by Dr. Marsay. The Pb isotope ratios show a strong Chinese signature in the northern portion of the transect, and ratios more similar to American and Australian signatures further south.

cdm_data_type = Other
VARIABLES:
Event_ID (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
End_Latitude (degrees_north)
End_Longitude (degrees_east)
Sample_Position (unitless)
Sample_ID (unitless)
Pb_A_T_CONC_HIVOL_icwcwz (femtomoles per cubic meter (fmol/m^3))
SD1_Pb_A_T_CONC_HIVOL_icwcwz (femtomoles per cubic meter (fmol/m^3))
Flag_Pb_A_T_CONC_HIVOL_icwcwz (unitless)
Pb_206_207_A_T_RATIO_HIVOL_bxxzna (unitless)
SD1_Pb_206_207_A_T_RATIO_HIVOL_bxxzna (unitless)
Flag_Pb_206_207_A_T_RATIO_HIVOL_bxxzna (unitless)
Pb_208_207_A_T_RATIO_HIVOL_9hzffz (unitless)
SD1_Pb_208_207_A_T_RATIO_HIVOL_9hzffz (unitless)
Flag_Pb_208_207_A_T_RATIO_HIVOL_9hzffz (unitless)
Pb_206_204_A_T_RATIO_HIVOL_kmxmvh (unitless)
SD1_Pb_206_204_A_T_RATIO_HIVOL_kmxmvh (unitless)
Flag_Pb_206_204_A_T_RATIO_HIVOL_kmxmvh (unitless)


[GP15 Be-7 Leg 1] - Aerosol and seawater beryllium-7 concentrations from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 (US GEOTRACES Pacific Meridional Transect)

Aerosol and seawater beryllium-7 concentrations from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (End ISO Date Time UTC, unitless)
latitude (degrees_north)
longitude (degrees_east)
End_Latitude (Latitude, decimal degrees)
End_Longitude (Longitude, decimal degrees)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample Depth, m)
Be_7_A_T_CONC_HIVOL_pv5z9e (milliBecquerel per cubic meter (mBq/m3))
SD1_Be_7_A_T_CONC_HIVOL_pv5z9e (mBq/m3)
Flag_Be_7_A_T_CONC_HIVOL_pv5z9e (unitless)
Be_7_D_CONC_PUMP_kzmaqr (microBecquerels per kilogram (uBq/kg))
SD1_Be_7_D_CONC_PUMP_kzmaqr (uBq/kg)
Flag_Be_7_D_CONC_PUMP_kzmaqr (unitless)


[GP15 Be-7 Leg 2] - Aerosol and seawater beryllium-7 concentrations from Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from October to November 2018 (US GEOTRACES Pacific Meridional Transect)

Aerosol and seawater beryllium-7 concentrations from Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from October to November 2018

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (End ISO Date Time UTC, unitless)
latitude (degrees_north)
longitude (degrees_east)
End_Latitude (Latitude, decimal degrees)
End_Longitude (Longitude, decimal degrees)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample Depth, m)
Be_7_A_T_CONC_HIVOL_gylceg (milliBecquerel per cubic meter (mBq/m3))
SD1_Be_7_A_T_CONC_HIVOL_gylceg (mBq/m3)
Flag_Be_7_A_T_CONC_HIVOL_gylceg (unitless)
Be_7_D_CONC_PUMP_ez6uky (microBecquerels per kilogram (uBq/kg))
SD1_Be_7_D_CONC_PUMP_ez6uky (uBq/kg)
Flag_Be_7_D_CONC_PUMP_ez6uky (unitless)


[GP15 Bulk, Size-fractionated, and Deionized Water Soluble Aerosol Fe Zn Cd Isotopes Leg 1] - Concentrations and stable isotopes of total and deionized water-soluble Fe, Zn, and Cd bulk aerosols and Fe concentrations and stable isotopes of coarse and fine aerosols from Leg 1 of the US GEOTRACES PMT cruise (GP15, RR1814) from Sept to Oct 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

This dataset reports concentrations and stable isotopes of total and deionized water-soluble iron (Fe), zinc (Zn), and cadmium (Cd) bulk aerosols and Fe concentrations and stable isotopes of coarse (>0.95 micrometers (µm)) and fine (<0.95 µm) aerosols collected during Leg 1 (RR1814) of the US GEOTRACES GP15 Pacific Meridional Transect (PMT) cruise on R/V Roger Revelle from September to October 2018 on a meridional transect along 152°W from Alaska to Tahiti. Concentration and isotope data were collected by Zachary Bunnell, Dr. Matthias Sieber, and Dr. Tim Conway at the University of South Florida using a Thermo Neptune Plus MC-ICPMS following aerosol collection and processing by Dr. Clifton Buck's group. Trace metal isotope ratios are an important emerging tool in aerosols to trace aerosol sources of each metal. Data from Leg 2 of the cruise (RR1815) are available in a separate dataset.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Event_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
End_Latitude (degrees_north)
End_Longitude (degrees_east)
Rosette_Position (unitless)
Sample_ID (unitless)
Fe_56_54_A_SMLH2O_DELTA_HIVOL_seqqmm (per mil)
SE2_Fe_56_54_A_SMLH2O_DELTA_HIVOL_seqqmm (per mil)
Flag_Fe_56_54_A_SMLH2O_DELTA_HIVOL_seqqmm (unitless)
Cd_A_SMLH2O_CONC_HIVOL_ptp6r9 (picomoles per cubic meter (pmol/m^3))
... (41 more variables)


[GP15 Bulk, Size-fractionated, and Deionized Water Soluble Aerosol Fe Zn Cd Isotopes Leg 2] - Concentrations and stable isotopes of total and deionized water-soluble Fe, Zn, and Cd bulk aerosols and Fe concentrations and stable isotopes of coarse and fine aerosols from Leg 2  of the US GEOTRACES PMT cruise (GP15, RR1814) from Oct to Nov 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

This dataset reports concentrations and stable isotopes of total and deionized water-soluble iron (Fe), zinc (Zn), and cadmium (Cd) bulk aerosols and Fe concentrations and stable isotopes of coarse (>0.95 micrometers (µm)) and fine (<0.95 µm) aerosols collected durin Leg 2 (RR1815) of the US GEOTRACES GP15 Pacific Meridional Transect (PMT) cruise on R/V Roger Revelle from October to November 2018 on a meridional transect along 152°W from Alaska to Tahiti. Concentration and isotope data were collected by Zachary Bunnell, Dr. Matthias Sieber, and Dr. Tim Conway at the University of South Florida using a Thermo Neptune Plus MC-ICPMS following aerosol collection and processing by Dr. Clifton Buck's group. Trace metal isotope ratios are an important emerging tool in aerosols to trace aerosol sources of each metal. Data from Leg 1 of the cruise (RR1814) are available in a separate dataset.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Event_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
End_Latitude (degrees_north)
End_Longitude (degrees_east)
Rosette_Position (unitless)
Sample_ID (unitless)
Fe_56_54_A_SMLH2O_DELTA_HIVOL_f0qtdh (per mil)
SE2_Fe_56_54_A_SMLH2O_DELTA_HIVOL_f0qtdh (per mil)
Flag_Fe_56_54_A_SMLH2O_DELTA_HIVOL_f0qtdh (unitless)
Cd_114_110_A_SMLH2O_DELTA_HIVOL_w0ytwa (per mil)
... (41 more variables)


[GP15 delta30Si Leg 1] - Depth profiles of the isotopic composition (δ30Si) of silicon within dissolved silicic acid from samples collected on Leg 1 of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

The isotopic composition of dissolved silicon (δ30Si) has proven to be a powerful tool to better understand the marine Si cycle. The δ30Si of seawater carries information about dissolved silicon utilization in surface waters, the subsequent dissolution of sinking biogenic material as well as water mass mixing. This data set supplies information on the spatial distribution of isotopes of Si within water masses from Tahiti to Alaska along GEOTRACES section GP15. This dataset results from leg 1 of the expedition, RR1814; data from RR1815 are available in a separate BCO-DMO dataset.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
Event_ID (unitless)
Sample_ID (unitless)
Sample_Depth (decibars (db))
SILICATE_30_28_D_DELTA_BOTTLE_mmipkg (per mil)
SD1_SILICATE_30_28_D_DELTA_BOTTLE_mmipkg (per mil)
Flag_SILICATE_30_28_D_DELTA_BOTTLE_mmipkg (unitless)


[GP15 delta30Si Leg 2] - Depth profiles of the isotopic composition (δ30Si) of silicon within dissolved silicic acid from samples collected on Leg 2 of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from October to November 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

The isotopic composition of dissolved silicon (δ30Si) has proven to be a powerful tool to better understand the marine Si cycle. The δ30Si of seawater carries information about dissolved silicon utilization in surface waters, the subsequent dissolution of sinking biogenic material as well as water mass mixing. This data set supplies information on the spatial distribution of isotopes of Si within water masses from Tahiti to Alaska along GEOTRACES section GP15. This dataset results from leg 2 of the expedition, RR1815; data from RR1814 are available in a separate BCO-DMO dataset.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
Event_ID (unitless)
Sample_ID (unitless)
Sample_Depth (decibars (db))
SILICATE_30_28_D_DELTA_BOTTLE_1foxwp (per mil)
SD1_SILICATE_30_28_D_DELTA_BOTTLE_1foxwp (per mil)
Flag_SILICATE_30_28_D_DELTA_BOTTLE_1foxwp (unitless)


[GP15 Dissolved and Labile Cobalt Leg 1] - Dissolved Cobalt and Labile Cobalt from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 (US GEOTRACES Pacific Meridional Transect)

Dissolved Cobalt and Labile Cobalt from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (End ISO Date Time UTC, unitless)
latitude (degrees_north)
longitude (degrees_east)
End_Latitude (Latitude, decimal degrees North)
End_Longitude (Longitude, decimal degrees East)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample Depth, m)
Co_D_CONC_BOTTLE_ifernt (picomoles per kilogram (pmol/kg))
SD1_Co_D_CONC_BOTTLE_ifernt (picomoles per kilogram (pmol/kg))
Flag_Co_D_CONC_BOTTLE_ifernt (unitless)
L1Co_D_CONC_BOTTLE_v2phpz (L1 Co D CONC BOTTLE V2phpz, picomoles per kilogram (pmol/kg))
SD1_L1Co_D_CONC_BOTTLE_v2phpz (SD1 L1 Co D CONC BOTTLE V2phpz, picomoles per kilogram (pmol/kg))
Flag_L1Co_D_CONC_BOTTLE_v2phpz (Flag L1 Co D CONC BOTTLE V2phpz, unitless)
Co_D_CONC_FISH_s5r59b (picomoles per kilogram (pmol/kg))
SD1_Co_D_CONC_FISH_s5r59b (picomoles per kilogram (pmol/kg))
Flag_Co_D_CONC_FISH_s5r59b (unitless)
L1Co_D_CONC_FISH_7wnxlt (L1 Co D CONC FISH 7wnxlt, picomoles per kilogram (pmol/kg))
SD1_L1Co_D_CONC_FISH_7wnxlt (SD1 L1 Co D CONC FISH 7wnxlt, picomoles per kilogram (pmol/kg))
Flag_L1Co_D_CONC_FISH_7wnxlt (Flag L1 Co D CONC FISH 7wnxlt, unitless)


[GP15 Dissolved and Labile Cobalt Leg 2] - Dissolved Cobalt and Labile Cobalt from Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from October to November 2018 (US GEOTRACES Pacific Meridional Transect)

Dissolved Cobalt and Labile Cobalt from Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from October to November 2018.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (End ISO Date Time UTC, unitless)
latitude (degrees_north)
longitude (degrees_east)
End_Latitude (Latitude, decimal degrees North)
End_Longitude (Longitude, decimal degrees East)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample Depth, m)
Co_D_CONC_BOTTLE_0vn2hs (picomoles per kilogram (pmol/kg))
SD1_Co_D_CONC_BOTTLE_0vn2hs (picomoles per kilogram (pmol/kg))
Flag_Co_D_CONC_BOTTLE_0vn2hs (unitless)
L1Co_D_CONC_BOTTLE_mgxi4u (L1 Co D CONC BOTTLE Mgxi4u, picomoles per kilogram (pmol/kg))
SD1_L1Co_D_CONC_BOTTLE_mgxi4u (SD1 L1 Co D CONC BOTTLE Mgxi4u, picomoles per kilogram (pmol/kg))
Flag_L1Co_D_CONC_BOTTLE_mgxi4u (Flag L1 Co D CONC BOTTLE Mgxi4u, unitless)
Co_D_CONC_FISH_r17gqs (picomoles per kilogram (pmol/kg))
SD1_Co_D_CONC_FISH_r17gqs (picomoles per kilogram (pmol/kg))
Flag_Co_D_CONC_FISH_r17gqs (unitless)
L1Co_D_CONC_FISH_u2dkub (L1 Co D CONC FISH U2dkub, picomoles per kilogram (pmol/kg))
SD1_L1Co_D_CONC_FISH_u2dkub (SD1 L1 Co D CONC FISH U2dkub, picomoles per kilogram (pmol/kg))
Flag_L1Co_D_CONC_FISH_u2dkub (Flag L1 Co D CONC FISH U2dkub, unitless)


[GP15 Dissolved Ba Cd Cu Ga Mn Ni and Pb Leg 1] - Dissolved concentrations of Ba, Cd, Cu, Ga, Mn, Ni, and Pb from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

Dissolved concentrations of Ba, Cd, Cu, Ga, Mn, Ni, and Pb from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
End_Latitude (degrees_north)
End_Longitude (degrees_east)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample_depth, m)
CTD_Pressure (decibars (dbar))
Ba_D_CONC_BOTTLE_hndhco (nanomoles per kilogram (nmol/kg))
SD1_Ba_D_CONC_BOTTLE_hndhco (nanomoles per kilogram (nmol/kg))
Flag_Ba_D_CONC_BOTTLE_hndhco (unitless)
Ba_D_CONC_FISH_nwzpfg (nanomoles per kilogram (nmol/kg))
SD1_Ba_D_CONC_FISH_nwzpfg (nanomoles per kilogram (nmol/kg))
Flag_Ba_D_CONC_FISH_nwzpfg (unitless)
Cd_D_CONC_BOTTLE_3qngnv (nanomoles per kilogram (nmol/kg))
SD1_Cd_D_CONC_BOTTLE_3qngnv (nanomoles per kilogram (nmol/kg))
Flag_Cd_D_CONC_BOTTLE_3qngnv (unitless)
Cd_D_CONC_FISH_rysl9e (nanomoles per kilogram (nmol/kg))
... (32 more variables)


[GP15 Dissolved Ba Cd Cu Ga Mn Ni and Pb Leg 2] - Dissolved concentrations of Ba, Cd, Cu, Ga, Mn, Ni, and Pb from Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from Oct-Nov 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

Dissolved concentrations of Ba, Cd, Cu, Ga, Mn, Ni, and Pb from Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from October to November 2018.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
End_Latitude (degrees_north)
End_Longitude (degrees_east)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample_depth, m)
CTD_Pressure (decibars (dbar))
Ba_D_CONC_BOTTLE_6yrfu2 (nanomoles per kilogram (nmol/kg))
SD1_Ba_D_CONC_BOTTLE_6yrfu2 (nanomoles per kilogram (nmol/kg))
Flag_Ba_D_CONC_BOTTLE_6yrfu2 (unitless)
Ba_D_CONC_FISH_zlfwni (nanomoles per kilogram (nmol/kg))
SD1_Ba_D_CONC_FISH_zlfwni (nanomoles per kilogram (nmol/kg))
Flag_Ba_D_CONC_FISH_zlfwni (unitless)
Cd_D_CONC_BOTTLE_s0muvq (nanomoles per kilogram (nmol/kg))
SD1_Cd_D_CONC_BOTTLE_s0muvq (nanomoles per kilogram (nmol/kg))
Flag_Cd_D_CONC_BOTTLE_s0muvq (unitless)
Cd_D_CONC_FISH_awbbbh (nanomoles per kilogram (nmol/kg))
... (32 more variables)


[GP15 Dissolved Radium-226 and Radium-228 Leg 1] - Water column dissolved radium-226 and radium-228 from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

Water column dissolved radium-226 and radium-228 from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018. In this dataset version (v4), there have been corrections made to sample depths and sample ID numbers.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
End_Latitude (degrees_north)
End_Longitude (degrees_east)
Event_ID (unitless)
Sample_ID_228Ra (unitless)
Sample_ID_226Ra (unitless)
Sample_Depth_Corr_226Ra (m)
Sample_Depth_Corr_228Ra (m)
Ra_226_D_CONC_BOTTLE_9ajov6 (milliBecquerels per kilogram (mBq/kg))
SD1_Ra_226_D_CONC_BOTTLE_9ajov6 (milliBecquerels per kilogram (mBq/kg))
Flag_Ra_226_D_CONC_BOTTLE_9ajov6 (unitless)
Ra_228_D_CONC_PUMP_0wrh9t (milliBecquerels per kilogram (mBq/kg))
SD1_Ra_228_D_CONC_PUMP_0wrh9t (milliBecquerels per kilogram (mBq/kg))
Flag_Ra_228_D_CONC_PUMP_0wrh9t (unitless)


[GP15 Dissolved Radium-226 and Radium-228 Leg 2] - Water column dissolved radium-226 and radium-228 from Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from October to November 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

Water column dissolved radium-226 and radium-228 from Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from October to November 2018. In this dataset version (v4), there have been corrections made to sample depths and sample ID numbers.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
End_Latitude (degrees_north)
End_Longitude (degrees_east)
Event_ID (unitless)
Sample_ID_228Ra (unitless)
Sample_ID_226Ra (unitless)
Sample_Depth_Corr_226Ra (m)
Sample_Depth_Corr_228Ra (m)
Ra_226_D_CONC_BOTTLE_zkto8n (milliBecquerels per kilogram (mBq/kg))
SD1_Ra_226_D_CONC_BOTTLE_zkto8n (milliBecquerels per kilogram (mBq/kg))
Flag_Ra_226_D_CONC_BOTTLE_zkto8n (unitless)
Ra_228_D_CONC_PUMP_eokmy1 (milliBecquerels per kilogram (mBq/kg))
SD1_Ra_228_D_CONC_PUMP_eokmy1 (milliBecquerels per kilogram (mBq/kg))
Flag_Ra_228_D_CONC_PUMP_eokmy1 (unitless)


[GP15 Dissolved Rare Earth Elements Leg 1] - Dissolved concentrations of rare earth elements (including Y) from Leg 1 of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

This dataset reports dissolved concentrations of rare earth elements (including Y) from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 along 152 W. The data include dissolved concentrations from bottle and towed fish samples. Including the data from Leg 2 (Hilo, HI to Papeete, French Polynesia), the PMT sampled margin interactions, subarctic high nutrient low chlorophyll waters, the oldest deep water in the world's oceans, the distal ends of hydrothermal plumes (Juan de Fuca Ridge and East Pacific Rise) and oxygen minimum zones, equatorial upwelling, and oligotrophic waters in the South Pacific gyre at 20°S. The rare earth element data are pertinent for studies of removal and internal cycling of trace elements, tracing material inputs, and understanding of conservative vs non-conservative tracer distributions.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Event_ID (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
Rosette_Position (unitless)
Sample_ID (unitless)
depth (Sample_depth, m)
Y_D_CONC_BOTTLE_501nbz (picomoles per kilogram (pmol/kg))
SD1_Y_D_CONC_BOTTLE_501nbz (picomoles per kilogram (pmol/kg))
Flag_Y_D_CONC_BOTTLE_501nbz (unitless)
Y_D_CONC_FISH_eets1q (picomoles per kilogram (pmol/kg))
SD1_Y_D_CONC_FISH_eets1q (picomoles per kilogram (pmol/kg))
Flag_Y_D_CONC_FISH_eets1q (unitless)
La_D_CONC_BOTTLE_yzfgzr (picomoles per kilogram (pmol/kg))
SD1_La_D_CONC_BOTTLE_yzfgzr (picomoles per kilogram (pmol/kg))
... (82 more variables)


[GP15 Dissolved Rare Earth Elements Leg 2] - Dissolved concentrations of rare earth elements (including Y) from Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from October to November 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

This dataset reports dissolved concentrations of rare earth elements (including Y) from Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from October to November 2018 along 152 W. The data include dissolved concentrations from bottle and towed fish samples. Including the data from Leg 1 (Seattle, WA to Hilo, HI), the PMT sampled margin interactions, subarctic high nutrient low chlorophyll waters, the oldest deep water in the world's oceans, the distal ends of hydrothermal plumes (Juan de Fuca Ridge and East Pacific Rise) and oxygen minimum zones, equatorial upwelling, and oligotrophic waters in the South Pacific gyre at 20°S. The rare earth element data are pertinent for studies of removal and internal cycling of trace elements, tracing material inputs, and understanding of conservative vs non-conservative tracer distributions.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Event_ID (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
Rosette_Position (unitless)
Sample_ID (unitless)
depth (Sample_depth, m)
Y_D_CONC_BOTTLE_vbtqm7 (picomoles per kilogram (pmol/kg))
SD1_Y_D_CONC_BOTTLE_vbtqm7 (picomoles per kilogram (pmol/kg))
Flag_Y_D_CONC_BOTTLE_vbtqm7 (unitless)
Y_D_CONC_FISH_asoboe (picomoles per kilogram (pmol/kg))
SD1_Y_D_CONC_FISH_asoboe (picomoles per kilogram (pmol/kg))
Flag_Y_D_CONC_FISH_asoboe (unitless)
La_D_CONC_BOTTLE_19sfbu (picomoles per kilogram (pmol/kg))
SD1_La_D_CONC_BOTTLE_19sfbu (picomoles per kilogram (pmol/kg))
... (82 more variables)


[GP15 Dissolved Th and Pa - Leg 1] - Dissolved thorium and protactinium isotopes (232Th, 230Th, 231Pa) in seawater from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

This dataset contains concentrations of dissolved thorium and protactinium isotopes (232Th, 230Th, 231Pa) in seawater collected during the U.S. GEOTRACES Pacific Meridional Transect (PMT) GP15, from Alaska to Tahiti, on the R/V Roger Revelle. The PMT expedition was divided into two legs, with cruise IDs RR1814 and RR1815. This dataset results from leg 1, RR1814; data from RR1815 are available in a separate BCO-DMO dataset. This is compiled data produced by three laboratories with the following associations: Lamont-Doherty Earth Observatory of Columbia University (LDEO), the University of Southern Mississippi (USM), and the University of Minnesota (UMN).

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
End_Latitude (degrees_north)
End_Longitude (degrees_east)
Cast_number (unitless)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample_depth, m)
Lab_ID (unitless)
Bottle_ID (unitless)
Th_230_D_CONC_BOTTLE_m5ivgp (micro-Becquerel per kilogram water (uBq/kg))
SD1_Th_230_D_CONC_BOTTLE_m5ivgp (micro-Becquerel per kilogram water (uBq/kg))
Flag_Th_230_D_CONC_BOTTLE_m5ivgp (unitless)
Th_232_D_CONC_BOTTLE_vwrb8w (picomole per kilogram water (pmol/kg))
... (26 more variables)


[GP15 Dissolved Th and Pa - Leg 2] - Dissolved thorium and protactinium isotopes (232Th, 230Th, 231Pa) in seawater from Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from Oct-Nov 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

This dataset contains concentrations of dissolved thorium and protactinium isotopes (232Th, 230Th, 231Pa) in seawater collected during the U.S. GEOTRACES Pacific Meridional Transect (PMT) GP15, from Alaska to Tahiti, on the R/V Roger Revelle. The PMT expedition was divided into two legs, with cruise IDs RR1814 and RR1815. This dataset results from leg 2, RR1815; data from RR1814 are available in a separate BCO-DMO dataset. This is compiled data produced by three laboratories with the following associations: Lamont-Doherty Earth Observatory of Columbia University (LDEO), the University of Southern Mississippi (USM), and the University of Minnesota (UMN).

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
End_Latitude (degrees_north)
End_Longitude (degrees_east)
Cast_number (unitless)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample_depth, m)
Lab_ID (unitless)
Bottle_ID (unitless)
Th_230_D_CONC_BOTTLE_aajvje (micro-Becquerel per kilogram water (uBq/kg))
SD1_Th_230_D_CONC_BOTTLE_aajvje (micro-Becquerel per kilogram water (uBq/kg))
Flag_Th_230_D_CONC_BOTTLE_aajvje (unitless)
Th_232_D_CONC_BOTTLE_mj1tw8 (picomole per kilogram water (pmol/kg))
... (26 more variables)


[GP15 Inert Copper and Iodine Redox Speciation Leg 1] - Inert copper and inorganic iodine concentrations from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

This dataset includes inert copper and inorganic iodine concentrations from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814), which took place on R/V Roger Revelle from September to October 2018. Iodate was analyzed on UV-Vis Spectrophotometer while Iodide was analyzed on the Hanging Mercury Drop Electrode with the Cathodic Square Wave Stripping Voltammetry setting. Inert copper was determined by Rintaro Moriyasu using the solvent extraction method published in Moriyasu & Moffett, 2022 (doi: 10.1016/j.marchem.2021.104073).

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
End_Latitude (degrees_north)
End_Longitude (degrees_east)
Cast_number (unitless)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample_depth, m)
L1Cu_D_CONC_BOTTLE_ypaxln (nanomoles per kilogram (nmol/kg))
SD1_L1Cu_D_CONC_BOTTLE_ypaxln (nanomoles per kilogram (nmol/kg))
Flag_L1Cu_D_CONC_BOTTLE_ypaxln (unitless)
I_neg1_D_CONC_BOTTLE_byhuiw (nanomoles per liter (nmol/L))
SD1_I_neg1_D_CONC_BOTTLE_byhuiw (nanomoles per liter (nmol/L))
Flag_I_neg1_D_CONC_BOTTLE_byhuiw (unitless)
I_V_D_CONC_BOTTLE_qlcfpy (nanomoles per liter (nmol/L))
SD1_I_V_D_CONC_BOTTLE_qlcfpy (nanomoles per liter (nmol/L))
Flag_I_V_D_CONC_BOTTLE_qlcfpy (unitless)


[GP15 Inert Copper and Iodine Redox Speciation Leg 2] - Inert copper and inorganic iodine concentrations from Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES PMT cruise (GP15, RR1815) on R/V Roger Revelle from Oct-Nov 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

This dataset includes inert copper and inorganic iodine concentrations from Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES PMT cruise (GP15, RR1815), which was conducted on R/V Roger Revelle from October to November 2018. Iodate was analyzed on UV-Vis Spectrophotometer while Iodide was analyzed on the Hanging Mercury Drop Electrode with the Cathodic Square Wave Stripping Voltammetry setting. Inert copper was determined by Rintaro Moriyasu using the solvent extraction method published in Moriyasu & Moffett, 2022 (doi: 10.1016/j.marchem.2021.104073).

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
End_Latitude (degrees_north)
End_Longitude (degrees_east)
Cast_number (unitless)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample_depth, m)
L1Cu_D_CONC_BOTTLE_ypaxln (nanomoles per kilogram (nmol/kg))
SD1_L1Cu_D_CONC_BOTTLE_ypaxln (nanomoles per kilogram (nmol/kg))
Flag_L1Cu_D_CONC_BOTTLE_ypaxln (unitless)
I_neg1_D_CONC_BOTTLE_udxopu (nanomoles per liter (nmol/L))
SD1_I_neg1_D_CONC_BOTTLE_udxopu (nanomoles per liter (nmol/L))
Flag_I_neg1_D_CONC_BOTTLE_udxopu (unitless)
I_V_D_CONC_BOTTLE_x9ogsn (nanomoles per liter (nmol/L))
SD1_I_V_D_CONC_BOTTLE_x9ogsn (nanomoles per liter (nmol/L))
Flag_I_V_D_CONC_BOTTLE_x9ogsn (unitless)


[GP15 Iron Ligands in Particles] - Iron ligand concentration in particles (1-51 μm) analyzed by liquid chromatography-mass spectrometry from samples collected on the US GEOTRACES Pacific Meridional Transect (PMT) cruise RR1814 (GP15) on R/V Roger Revelle in October 2018 (Trace Element Organic Speciation along the US GEOTRACES Pacific Meridional Transect)

This dataset includes iron ligand concentration in particles (1-51 μm) analyzed by liquid chromatography-mass spectrometry. Samples were collected on the US GEOTRACES Pacific Meridional Transect (PMT) cruises (GP15, RR1814 & RR1815) on R/V Roger Revelle from September to November 2018.

cdm_data_type = Other
VARIABLES:
Sample (unitless)
Station (unitless)
Lat (degrees_north)
longitude (degrees_east)
depth (m)
Ferrioxamine_G (picomolar (pM))
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)


[GP15 Nd isotopes Leg 1] - Neodymium (Nd) isotopes measured from dissolved seawater on Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

The goal of the international GEOTRACES program is to understand the distributions of trace chemical elements and their isotopes in the oceans. Neodymium (Nd) isotopes are widely recognized for their utility as tracers of water transport and as indicators of the sources of trace elements to the oceans. Neodymium isotopes have been designated as "key parameters" to be measured on GEOTRACES expeditions. The data here represent Nd isotopes measured from dissolved seawater on the GP15 GEOTRACES expedition in the Pacific Ocean. The North Pacific is a particularly interesting place to measure Nd isotopes because North Pacific and North Atlantic deep waters represent the two end-members of deep ocean composition, and the few data available so far in the North Pacific differ from expectations based on mixing of known water types. These data are dissolved Nd isotopes measured in profiles at stations on the first leg of the cruise, RR1814.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Event_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
Sample_ID (unitless)
depth (Sample_depth, m)
Nd_143_144_D_EPSILON_BOTTLE_iljaq8 (epsilon notation (parts per 10,000))
SD1_Nd_143_144_D_EPSILON_BOTTLE_iljaq8 (epsilon notation (parts per 10,000))
Flag_Nd_143_144_D_EPSILON_BOTTLE_iljaq8 (unitless)


[GP15 Nd isotopes Leg 2] - Neodymium (Nd) isotopes measured from dissolved seawater on Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from October to November 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

The goal of the international GEOTRACES program is to understand the distributions of trace chemical elements and their isotopes in the oceans. Neodymium (Nd) isotopes are widely recognized for their utility as tracers of water transport and as indicators of the sources of trace elements to the oceans. Neodymium isotopes have been designated as "key parameters" to be measured on GEOTRACES expeditions. The data here represent Nd isotopes measured from dissolved seawater on the GP15 GEOTRACES expedition in the Pacific Ocean. The North Pacific is a particularly interesting place to measure Nd isotopes because North Pacific and North Atlantic deep waters represent the two end-members of deep ocean composition, and the few data available so far in the North Pacific differ from expectations based on mixing of known water types. These data are dissolved Nd isotopes measured in profiles at stations on the second leg of the cruise, RR1815.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Event_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
Sample_ID (unitless)
depth (Sample_depth, m)
Nd_143_144_D_EPSILON_BOTTLE_x2epvg (epsilon notation (parts per 10,000))
SD1_Nd_143_144_D_EPSILON_BOTTLE_x2epvg (epsilon notation (parts per 10,000))
Flag_Nd_143_144_D_EPSILON_BOTTLE_x2epvg (unitless)


[GP15 Nitrate d15N and d18O Leg 1] - Nitrate d15N and d18O from Niskin bottle samples collected on Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

These data include nitrate δ15N and δ18O along US GEOTRACES GP15, a meridional transect at ~152°W in the Pacific Ocean. The Pacific hosts significant rates of all the fluxes that are relevant to the global N cycle: the N budget fluxes (those that either generate or consume fixed N; N2 fixation and denitrification) as well as the N fluxes from the internal N cycle (those that generate or consume nitrate but leave the fixed N pool unaltered; nitrate regeneration and assimilation). The nitrate δ15N and δ18O provide a useful tool to separate and possibly quantify the overlapping impacts of all these co-occurring processes.

GP15 was a 60-day research cruise that took place in 2018 along a transect form Alaska to Tahiti at 152° W on board of the R/V Revelle. The cruise was completed in two legs (RR1814 and RR1815), which started on the 18th of September and on the 24th of October 2018, respectively. This dataset includes data from Leg 1 (RR1814). Leg 2 data (RR1815) are provided in a separate, related dataset.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Event_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
End_Latitude (degrees_north)
End_Longitude (degrees_east)
Sample_ID (unitless)
depth (Sample_depth, m)
NITRATE_15_14_D_DELTA_BOTTLE_lnw6zq (per mil versus air)
SD1_NITRATE_15_14_D_DELTA_BOTTLE_lnw6zq (per mil versus air)
... (5 more variables)


[GP15 Nitrate d15N and d18O Leg 2] - Nitrate d15N and d18O from Niskin bottle samples collected on Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from October to November 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

These data include nitrate δ15N and δ18O along US GEOTRACES GP15, a meridional transect at ~152°W in the Pacific Ocean. The Pacific hosts significant rates of all the fluxes that are relevant to the global N cycle: the N budget fluxes (those that either generate or consume fixed N; N2 fixation and denitrification) as well as the N fluxes from the internal N cycle (those that generate or consume nitrate but leave the fixed N pool unaltered; nitrate regeneration and assimilation). The nitrate δ15N and δ18O provide a useful tool to separate and possibly quantify the overlapping impacts of all these co-occurring processes.

GP15 was a 60-day research cruise that took place in 2018 along a transect form Alaska to Tahiti at 152° W on board of the R/V Revelle. The cruise was completed in two legs (RR1814 and RR1815), which started on the 18th of September and on the 24th of October 2018, respectively. This dataset includes data from Leg 2 (RR1815). Leg 1 data (RR1814) are provided in a separate, related dataset.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Event_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
End_Latitude (degrees_north)
End_Longitude (degrees_east)
Sample_ID (unitless)
depth (Sample_depth, m)
NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp (per mil versus air)
SD1_NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp (per mil versus air)
... (5 more variables)


[GP15 Particle birefringence photon yield and particle beam attenuation coefficient derived from McLane logging CTD] - Particle birefringence photon yield and particle beam attenuation coefficient derived from a logging CTD deployed during McLane Pump casts on the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15) on R/V Roger Revelle from Sept-Nov 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

This data set was derived from a logging CTD deployed during McLane Pump casts as part of the GEOTRACES Pacific Meridional Transect (GP15 expedition). There are several related data files provided. The primary data files include: (1) data for the 0-500 meters (m) depth interval, including measures of particle birefringence photon yield (units of parts per million per meter) and particle beam attenuation coefficient (units of per meter); and (2) 0-500 m McLane optics profiles data by broken down by specific cast number and deployment phase. Supplemental files include data for the full depth of the water column (6000 meters) and CTD data used in the reduction of optical birefringence yield and for the calculation of particle beam attenuation coefficient.

cdm_data_type = Other
VARIABLES:
station (unitless)
latitude (degrees_north)
longitude (Long, degrees_east)
jdays (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
track_km (kilometers (km))
PPZ_depth (m)
depth (m)
depth_n (unitless)
press (decibars (db))
temp (degrees Celsius)
temp_sd (degrees Celsius)
sal (practical salinity units (PSU))
sal_sd (practical salinity units (PSU))
pic011Biref_av (parts per million per meter (ppm m-1))
pic011Biref_av_sd (parts per million per meter (ppm m-1))
pic011Biref_av_n (unitless)
cp1450_av (parts per million per meter (ppm m-1))
cp1450_av_sd (parts per million per meter (ppm m-1))
... (7 more variables)


[GP15 Particulate Thorium and Protactinium Leg 1] - Size-fractionated particulate thorium and protactinium isotopes in seawater from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

This dataset contains concentrations of size-fractionated particulate thorium and protactinium isotopes (Th-232, Th-230, Pa-231) in seawater collected during the U.S. GEOTRACES Pacific Meridional Transect GP15; Alaska to Tahiti) on the Roger Revelle (RR1814 and RR1815) from 18 September – 24 November 2018. This is compiled data produced by three laboratories with the following associations: Lamont-Doherty Earth Observatory of Columbia University (LDEO), the University of Southern Mississippi (USM), and the University of Minnesota (UMN). A report will be submitted for review by the International GEOTRACES Standards and Intercalibration (S&I) Committee. This dataset contains data from Leg 1 of the expedition (RR1814). Data from leg 2 are available in a separate BCO-DMO dataset.

cdm_data_type = Other
VARIABLES:
Cruise_ID (unitless)
Station_ID (unitless)
Cast_ID (unitless)
Event_ID (unitless)
Gear_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
Sample_ID (unitless)
Lab_ID_SPT (unitless)
Lab_ID_LPT (unitless)
depth (Sample_depth, m)
Sample_Depth_Flag (unitless)
Th_232_SPT_CONC_PUMP_zuir1n (picomoles per kilogram (pmol/kg))
SD1_Th_232_SPT_CONC_PUMP_zuir1n (picomoles per kilogram (pmol/kg))
Flag_Th_232_SPT_CONC_PUMP_zuir1n (unitless)
Th_230_SPT_CONC_PUMP_jit90a (micro-Becquerel per kilogram (uBq/kg))
... (38 more variables)


[GP15 Particulate Thorium and Protactinium Leg 2] - Size-fractionated particulate thorium and protactinium isotopes in seawater from Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from Oct-Nov 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

This dataset contains concentrations of size-fractionated particulate thorium and protactinium isotopes (Th-232, Th-230, Pa-231) in seawater collected during the U.S. GEOTRACES Pacific Meridional Transect GP15; Alaska to Tahiti) on the Roger Revelle (RR1814 and RR1815) from 18 September – 24 November 2018. This is compiled data produced by three laboratories with the following associations: Lamont-Doherty Earth Observatory of Columbia University (LDEO), the University of Southern Mississippi (USM) and the University of Minnesota (UMN). A report will be submitted for review by the International GEOTRACES Standards and Intercalibration (S&I) Committee. This dataset contains data from Leg 2 of the expedition (RR1815). Data from leg 1 are available in a separate BCO-DMO dataset.

cdm_data_type = Other
VARIABLES:
Cruise_ID (unitless)
Station_ID (unitless)
Cast_ID (unitless)
Event_ID (unitless)
Gear_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
Sample_ID (unitless)
Lab_ID_SPT (unitless)
Lab_ID_LPT (unitless)
depth (Sample_depth, m)
Sample_Depth_Flag (unitless)
Th_232_SPT_CONC_PUMP_lpmi1m (picomoles per kilogram (pmol/kg))
SD1_Th_232_SPT_CONC_PUMP_lpmi1m (picomoles per kilogram (pmol/kg))
Flag_Th_232_SPT_CONC_PUMP_lpmi1m (unitless)
Th_230_SPT_CONC_PUMP_29jynq (micro-Becquerel per kilogram (uBq/kg))
... (38 more variables)


[GP15 Pb and Pb Isotopes Leg 1] - Lead (Pb) concentrations and Pb isotope ratios (206Pb/207Pb, 208Pb/207Pb, 206Pb/204Pb) from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

During September 23 to November 22, 2018, the R/V Roger Revelle completed a trace element (and their isotopes) hydrographic section along ~152° West from 56° North to 20° South (GEOTRACES GP15). Full water column trace metal clean samples were obtained with the U.S. GEOTRACES Carousel (GTC) composed of 24 12-liter trace metal clean GO-Flow sampling systems mounted on a trace metal free powder-coated titanium rosette system. Three of the stations had lead (Pb) concentrations determined at Massachusetts Institute of Technology (MIT) by isotope dilution quadrupole inductively coupled plasma mass spectrometry (ICPMS) for intercalibration with the Texas A&M (TAMU) lab of Jessica Fitzsimmons who analyzed all of the cruise stations. The rest of the full- and super-stations were analyzed at MIT for Pb isotope ratios (206Pb/207Pb, 208Pb/207Pb, 206Pb/204Pb). These data are collected to document the penetration of atmosphericly-transported anthropogenic Pb into the ocean and its subsequent dispersion by circulation and chemical interactions between sinking particles and Pb dissolved in solution. Shuo Jiang, Nathan Lanning, and Edward Boyle performed the extractions and the ICPMS analyses. This dataset includes data from Leg 1 of the cruise, RR1814.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Event_ID (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
Sample_ID (unitless)
depth (Sample_depth, m)
Pb_206_207_D_RATIO_BOTTLE_h0hu59 (unitless)
SD2_Pb_206_207_D_RATIO_BOTTLE_h0hu59 (unitless)
Flag_Pb_206_207_D_RATIO_BOTTLE_h0hu59 (unitless)
Pb_208_207_D_RATIO_BOTTLE_o5msvl (unitless)
SD1_Pb_208_207_D_RATIO_BOTTLE_o5msvl (unitless)
Flag_Pb_208_207_D_RATIO_BOTTLE_o5msvl (unitless)
... (18 more variables)


[GP15 Pb and Pb Isotopes Leg 2] - Lead (Pb) concentrations and Pb isotope ratios (206Pb/207Pb, 208Pb/207Pb, 206Pb/204Pb) from Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from Oct-Nov 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

During September 23 to November 22, 2018, the R/V Roger Revelle completed a trace element (and their isotopes) hydrographic section along ~152° West from 56° North to 20° South (GEOTRACES GP15). Full water column trace metal clean samples were obtained with the U.S. GEOTRACES Carousel (GTC) composed of 24 12-liter trace metal clean GO-Flow sampling systems mounted on a trace metal free powder-coated titanium rosette system. Three of the stations had lead (Pb) concentrations determined at Massachusetts Institute of Technology (MIT) by isotope dilution quadrupole inductively coupled plasma mass spectrometry (ICPMS) for intercalibration with the Texas A&M (TAMU) lab of Jessica Fitzsimmons who analyzed all of the cruise stations. The rest of the full- and super-stations were analyzed at MIT for Pb isotope ratios (206Pb/207Pb, 208Pb/207Pb, 206Pb/204Pb). These data are collected to document the penetration of atmosphericly-transported anthropogenic Pb into the ocean and its subsequent dispersion by circulation and chemical interactions between sinking particles and Pb dissolved in solution. Shuo Jiang, Nathan Lanning, and Edward Boyle performed the extractions and the ICPMS analyses. This dataset includes data from Leg 2 of the cruise, RR1815.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Event_ID (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
Sample_ID (unitless)
depth (Sample_depth, m)
Pb_208_207_D_RATIO_FISH_dx6trs (unitless)
SD1_Pb_208_207_D_RATIO_FISH_dx6trs (unitless)
Flag_Pb_208_207_D_RATIO_FISH_dx6trs (unitless)
Pb_206_204_D_RATIO_FISH_xqphwk (unitless)
SD1_Pb_206_204_D_RATIO_FISH_xqphwk (unitless)
Flag_Pb_206_204_D_RATIO_FISH_xqphwk (unitless)
... (18 more variables)


[GP15 Water Column Dissolved 227Ac Leg 1] - Activity of actinium-227 from water samples collected on Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

Actinium-227 (227Ac) was captured on commercial water filters impregnated with manganese dioxide (MnO2) and placed downstream of the filters in submersible pumps deployed on GEOTRACES expedition GP15, aboard R/V Roger Revelle, in collaboration with groups from Woods Hole Oceanographic Institution (WHOI) and University of South Carolina who measured radium isotopes on the same cartridges. The activity of 227Ac was measured using RaDeCC (Radium Delayed Coincidence Counter) and used to calculate the concentration of dissolved  227Ac along the transect by PI Douglas Hammond and graduate student Nathan Kemnitz. Data have been summarized and will be submitted in a publication to be submitted to JGR Oceans, along with a companion data set for 227Ac, 228Ra, and 210Pb in sediments. This dataset has been used to evaluate deep ocean solute transport. This dataset includes data from Leg 1 of the cruise (RR1814). Leg 2 data (RR1815) are available in a separate BCO-DMO dataset.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Event_ID (unitless)
Gear_ID (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
Sample_ID (unitless)
depth (Sample_depth, m)
Ac_227_D_CONC_PUMP_lfvbby (micro becquerel per kilogram (uBq/kg))
SD1_Ac_227_D_CONC_PUMP_lfvbby (micro becquerel per kilogram (uBq/kg))
Flag_Ac_227_D_CONC_PUMP_lfvbby (unitless)
Pa231_uBq_kg (micro becquerel per kilogram (uBq/kg))
... (9 more variables)


[GP15 Water Column Dissolved 227Ac Leg 2] - Activity of actinium-227 from water samples collected on Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from Oct-Nov 2018 (US GEOTRACES Pacific Meridional Transect (GP15))

Actinium-227 (227Ac) was captured on commercial water filters impregnated with manganese dioxide (MnO2) and placed downstream of the filters in submersible pumps deployed on GEOTRACES expedition GP15, aboard R/V Roger Revelle, in collaboration with groups from Woods Hole Oceanographic Institution (WHOI) and University of South Carolina who measured radium isotopes on the same cartridges. The activity of 227Ac was measured using RaDeCC (Radium Delayed Coincidence Counter) and used to calculate the concentration of dissolved  227Ac along the transect by PI Douglas Hammond and graduate student Nathan Kemnitz. Data have been summarized and will be submitted in a publication to be submitted to JGR Oceans, along with a companion data set for 227Ac, 228Ra, and 210Pb in sediments. This dataset has been used to evaluate deep ocean solute transport. This dataset includes data from Leg 2 of the cruise (RR1815). Leg 1 data (RR1814) are available in a separate BCO-DMO dataset.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Event_ID (unitless)
Gear_ID (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
Sample_ID (unitless)
depth (Sample_depth, m)
Ac_227_D_CONC_PUMP_rxwrrl (micro becquerel per kilogram (uBq/kg))
SD1_Ac_227_D_CONC_PUMP_rxwrrl (micro becquerel per kilogram (uBq/kg))
Flag_Ac_227_D_CONC_PUMP_rxwrrl (unitless)
Pa231_uBq_kg (micro becquerel per kilogram (uBq/kg))
... (9 more variables)


[GP16 Acetic Acid Leachable Trace Metals from Aerosols] - Acetic acid leachable trace metals from bulk aerosol samples collected during the US GEOTRACES EPZT section cruise (R/V Thomas G. Thompson TN303) in the Eastern Tropical Pacific from October to December 2013 (U.S. GEOTRACES East Pacific Zonal Transect)

Atmospheric input is important to the biogeochemical cycling of trace metals in the ocean. The fraction of aerosol trace metals that can potentially dissolve after deposition is of interest for improving knowledge of aerosol/surface ocean interactions. This dataset provides acetic acid leachable trace metal values from bulk aerosol from the Equatorial Pacific along the US GEOTRACES EPTZ transect (TN303) from Peru to Tahiti. This region is characterized as one of the lowest atmospheric deposition regimes in the ocean. Bulk aerosols were collected from the boundary layer (~15 m above sea level) using a high-volume aerosol sampler drawing approximately 1.2 cubic meters of air per minute over Whatman 41 ash-less filter discs. Despite low aerosol loadings, triplicate agreement for most samples was good for Al, Ti, V, Mn, Fe, and Cu. Away from the coast, Cd and Pb values in most samples were close to, or below detection limit. Acetic acid leaches were carried out with a combination of 25% acetic acid and a reducing agent. Leachable trace metal concentrations were determined at the University of Alaska Fairbanks by inductively coupled plasma mass spectrometry (Thermo Element-2) using external calibration curves. The aerosol trace metal fractional solubility was calculated as a percent of the total bulk aerosol data from the same cruise (https://www.bco-dmo.org/dataset/675632).

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (End ISO Date Time UTC, unitless)
latitude (degrees_north)
longitude (degrees_east)
End_Latitude (Latitude, degrees North)
End_Longitude (Longitude, degrees East)
Event_ID (unitless)
Sample_ID (unitless)
... (26 more variables)


[GP16 Cast Events Summary Table] - Cast events summary table associated with the US GEOTRACES East Pacific Zonal Transect from the R/V Thomas G. Thompson TN303 cruise in the tropical Pacific from Peru to Tahiti during 2013 (U.S. GEOTRACES EPZT project) (U.S. GEOTRACES East Pacific Zonal Transect)

Cast events summary table associated with the US GEOTRACES East Pacific Zonal Transect from the R/V Thomas G. Thompson TN303 cruise in the tropical Pacific from Peru to Tahiti during 2013.

cdm_data_type = Other
VARIABLES:
EXPOCODE (text)
SECT_ID (text)
GEOTRC_EVENTNO (dimensionless)
STNNBR (dimensionless)
CASTNO (dimensionless)
CAST_TYPE (text)
DATE (unitless)
time2 (TIME, unitless)
time (ISO DATE TIME, seconds since 1970-01-01T00:00:00Z)
EVENT_CODE (text)
latitude (degrees_north)
longitude (degrees_east)
NAV (text)
CORR_DEPTH (meters)
HT_ABOVE_BOTTOM (meters)
WIRE_OUT (meters)
MAX_PRESS (dbar)
NO_BOTTLES (dimensionless)
PARAMETERS (text)
COMMENTS (text)


[GP16 CFC Sat] - CFC saturation along the US GEOTRACES East Pacific Zonal Transect from the R/V Thomas G. Thompson TN303 cruise in the tropical Pacific from Peru to Tahiti during 2013 (U.S. GEOTRACES EPZT project) (U.S. GEOTRACES East Pacific Zonal Transect)

CFC saturation along the US GEOTRACES East Pacific Zonal Transect from the R/V Thomas G. Thompson TN303 cruise in the tropical Pacific from Peru to Tahiti during 2013.

cdm_data_type = Other
VARIABLES:
EXPOCODE (text)
SECT_ID (text)
GEOTRC_EVENTNO (dimensionless)
Station (dimensionless)
Sample_Num (dimensionless)
GEOTRC_SAMPNO (dimensionless)
DATE (unitless)
time2 (TIME, HHMM)
time (ISO DATETIME, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
pressure (decibars)
salinity (Sea Water Practical Salinity, PSS-78)
theta ((tbd))
f11spc ((tbd))
f12spc ((tbd))
f113spc ((tbd))
ccl4spc ((tbd))
sf6spc ((tbd))


[GP16 Cruise Event Log] - Scientific sampling event log associated with the US GEOTRACES East Pacific Zonal Transect cruise from R/V Thomas G. Thompson TN303 in the tropical Pacific from Peru to Tahiti during 2013 (U.S. GEOTRACES EPZT project) (U.S. GEOTRACES East Pacific Zonal Transect)

Scientific Sampling Event Log for TN303 (GEOTRACES EPZT). Station numbers, Events, Dates/Times, Lat/Lons and Event descriptions are provided for each station.

cdm_data_type = Other
VARIABLES:
GEOTRC_EVENTNO (integer)
LOCATION (text)
DATE_START (unitless)
TIME_START (unitless)
time (ISO DATETIME START, seconds since 1970-01-01T00:00:00Z)
DATE_END (unitless)
TIME_END (unitless)
ISO_DATETIME_END (unitless)
latitude (degrees_north)
longitude (degrees_east)
LAT_DEG_S (Latitude, degrees)
LAT_MIN_S (Latitude, dec_mins)
LON_DEG_W (degrees)
LON_MIN_W (dec_mins)
DEPTH_MIN (Depth, meters)
depth (m)
EVENT_DESCRIPTION (text)
SAMPLES_TAKEN (text)
GEOTRACES_ID_NUMBER_RANGE (text)
COMMENT (text)