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     data   graph     files  public [GP16 Thorium-234 Total] - Water-column total Th-234 from R/V Thomas G. Thompson cruise TN303
in the Eastern Tropical Pacific in 2013 (U.S. GEOTRACES EPZT project) (U.S. GEOTRACES East
Pacific Zonal Transect) 		   ?   F   I   M   background (external link) RSS Subscribe BCO-DMO bcodmo_dataset_643213

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL access_formats String .htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson,.odvTxt
attribute NC_GLOBAL acquisition_description String Sampling details:
Super stations: approximately 28 discrete total Th-234 samples were
collected throughout the water column, a minimum of 12 depths were chosen in
the upper 1000 m.
Full stations: approximately 20 discrete total Th-234 samples were collected
throughout the water column, a minimum of 12 depths were chosen in the upper
1000 m.
Hemi station: 16 discrete total Th-234 samples were collected from the upper
3000 m.
Demi and Shelf stations: 12 discrete total Th-234 samples were collected, at
shelf stations depths spanned the entire water column, at demis the upper 1000
m was sampled.

The shipboard procedures follow Pike et al. (2005).

Thorium-234:
Thorium-234 was determined by the widely-adopted 4 L method. Generally,
shallow (< 1000 m) samples were collected from the ODF Rosette and deep
samples (>1000 m) were collected from niskin bottles hung above in situ pumps.
Data are decay corrected to the mid-point time between when bottles 1 and 12
were fired for shallow casts, when the messenger was dropped for deep casts,
and the time of collection for underway samples. All underway samples were
collected directly from the ship\u2019s underway system in the aft ODF wet lab
(denoted as bottle 99, cast 0, depth 3 m). All data have been recovery-
corrected using the Th-230/Th-229 recovery method (see references below) to
account for any loss of sample material during processing. All samples were
analyzed using RISO Laboratory Anti-coincidence Beta Counters, using a
helium/1% butane mixture. Overall method efficiency was determined by
minimizing the percent difference between mean U-238 and Th-234 values for
samples from >1000 m to > 500 m from the bottom (45.72 %). Only stations 6
through 16 and 23 through 36 were used to determine method efficiency so as
not to include samples with potential coastal or hydrothermal influences.

Uranium-238:
Value and uncertainty from equation derived in Owens et al. (2011)

U-238 (dpm/L) = (Salinity * 0.0786) \u2013 0.315

Salinity was measured on board the ship by the Scripps Ocean Data Facility
(ODF).

For more information on methods and intercalibration procedures, refer to the
[GEOTRACES Intercalibration Report](\\"https://datadocs.bco-
dmo.org/docs/302/geotraces/GEOTRACES_EPZT/buesseler/data_docs/0000-0001-7362-8796-TN303
-multiple-param-intercal-report.pdf\\")\u00a0(PDF) Supplemental File.
attribute NC_GLOBAL awards_0_award_nid String 643215
attribute NC_GLOBAL awards_0_award_number String OCE-1232669
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward?AWD_ID=1232669 (external link)
attribute NC_GLOBAL awards_0_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_0_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_0_funding_source_nid String 355
attribute NC_GLOBAL awards_0_program_manager String Henrietta N Edmonds
attribute NC_GLOBAL awards_0_program_manager_nid String 51517
attribute NC_GLOBAL awards_1_award_nid String 643216
attribute NC_GLOBAL awards_1_award_number String OCE-1231211
attribute NC_GLOBAL awards_1_data_url String http://www.nsf.gov/awardsearch/showAward?AWD_ID=1231211 (external link)
attribute NC_GLOBAL awards_1_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_1_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_1_funding_source_nid String 355
attribute NC_GLOBAL awards_1_program_manager String Henrietta N Edmonds
attribute NC_GLOBAL awards_1_program_manager_nid String 51517
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Water-column Total Thorium-234; Buesseler, Charette, & Moore
Version History:
11 June 2020 (current) - replaced with GEOTRACES DOoR/IDP formatted file.
08 May 2020 - corrected date and time of event 4076.
18 July 2017 - changed parameter names containing "TD" to "T" to indicate "total", in accordance with GEOTRACES IDP naming conventions.
27 Jan 2017 - moved values for sample 9547 from _FISH_ to _UWAY_ columns.
10 Nov 2016 - corrected incorrect event number at station 17: "4127" changed to "4217"; also corrected an incorrect sample number at event 4358: "9546" changed to "9547".
11 July 2016 - created separate columns by instrument type, in accordance with the GEOTRACES IDP naming nonventions.
03 June 2016 - original version.
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_email String info at bco-dmo.org
attribute NC_GLOBAL creator_name String BCO-DMO
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://www.bco-dmo.org/ (external link)
attribute NC_GLOBAL data_source String extract_data_as_tsv version 2.3 19 Dec 2019
attribute NC_GLOBAL dataset_current_state String Final and no updates
attribute NC_GLOBAL date_created String 2016-04-18T17:22:35Z
attribute NC_GLOBAL date_modified String 2020-07-09T15:28:33Z
attribute NC_GLOBAL defaultDataQuery String &amp;time&lt;now
attribute NC_GLOBAL doi String 10.26008/1912/bco-dmo.643213.7
attribute NC_GLOBAL Easternmost_Easting double -77.3761
attribute NC_GLOBAL geospatial_lat_max double -10.25
attribute NC_GLOBAL geospatial_lat_min double -16.0004
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -77.3761
attribute NC_GLOBAL geospatial_lon_min double -152.0004
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 5447.4
attribute NC_GLOBAL geospatial_vertical_min double 1.8
attribute NC_GLOBAL geospatial_vertical_positive String down
attribute NC_GLOBAL geospatial_vertical_units String m
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/643213 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String Niskin bottle
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Shallow samples for Th-234 were taken using the ODF Rosette (12 30-Liter niskin bottles) and deep samples were taken using niskin bottles hung above in-situ pumps.
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 643240
attribute NC_GLOBAL instruments_0_description String A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Niskin bottle
attribute NC_GLOBAL instruments_0_instrument_nid String 413
attribute NC_GLOBAL instruments_0_supplied_name String Niskin bottle
attribute NC_GLOBAL instruments_1_acronym String Pump-Ship Intake
attribute NC_GLOBAL instruments_1_dataset_instrument_description String All underway samples were collected directly from the ship’s underway system in the aft ODF wet lab
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 814841
attribute NC_GLOBAL instruments_1_description String The 'Pump-underway ship intake' system indicates that samples are from the ship's clean water intake pump. This is essentially a surface water sample from a source of uncontaminated near-surface (commonly 3 to 7 m) seawater that can be pumped continuously to shipboard laboratories on research vessels. There is typically a temperature sensor near the intake (known as the hull temperature) to provide measurements that are as close as possible to the ambient water temperature. The flow from the supply is typically directed through continuously logged sensors such as a thermosalinograph and a fluorometer. Water samples are often collected from the underway supply that may also be referred to as the non-toxic supply. Ideally the data contributor has specified the depth in the ship's hull at which the pump is mounted.
attribute NC_GLOBAL instruments_1_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/31/ (external link)
attribute NC_GLOBAL instruments_1_instrument_name String Pump - Surface Underway Ship Intake
attribute NC_GLOBAL instruments_1_instrument_nid String 534
attribute NC_GLOBAL instruments_1_supplied_name String underway system
attribute NC_GLOBAL instruments_2_acronym String Riso Beta Counter
attribute NC_GLOBAL instruments_2_dataset_instrument_description String Th-234 samples were analyzed using a Riso Anti-coincidence Beta Counter using a helium/1% butane mixture.
attribute NC_GLOBAL instruments_2_dataset_instrument_nid String 643241
attribute NC_GLOBAL instruments_2_description String Low-level beta detectors manufactured by Riso (now Nutech) in Denmark. These instruments accept samples that can be mounted on a 25mm filter holder. These detectors have very low backgrounds, 0.17 counts per minute, and can have counting efficiencies as high as 55%.
attribute NC_GLOBAL instruments_2_instrument_name String Riso Laboratory Anti-coincidence Beta Counters
attribute NC_GLOBAL instruments_2_instrument_nid String 687
attribute NC_GLOBAL instruments_2_supplied_name String RISO Laboratory Anti-coincidence Beta Counters
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, bottle, chemical, conc, data, dataset, date, depth, dmo, end, End_Date_UTC, End_ISO_DateTime_UTC, End_Latitude, End_Longitude, End_Time_UTC, erddap, event, Event_ID, flag, Flag_Th_234_T_CONC_BOTTLE_oepuv9, Flag_Th_234_T_CONC_UWAY_gy2zni, gy2zni, iso, latitude, longitude, management, oceanography, oepuv9, office, preliminary, sample, Sample_Depth, Sample_ID, sd1, SD1_Th_234_T_CONC_BOTTLE_oepuv9, SD1_Th_234_T_CONC_UWAY_gy2zni, start, Start_Date_UTC, Start_Time_UTC, station, Station_ID, Th_234_T_CONC_BOTTLE_oepuv9, Th_234_T_CONC_UWAY_gy2zni, time, uway
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/643213/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/643213 (external link)
attribute NC_GLOBAL Northernmost_Northing double -10.25
attribute NC_GLOBAL param_mapping String {'643213': {'Start_ISO_DateTime_UTC': 'flag - time', 'Sample_Depth': 'flag - depth', 'Start_Longitude': 'flag - longitude', 'Start_Latitude': 'flag - latitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/643213/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_0_affiliation_acronym String WHOI
attribute NC_GLOBAL people_0_person_name String Kenneth O. Buesseler
attribute NC_GLOBAL people_0_person_nid String 50522
attribute NC_GLOBAL people_0_role String Principal Investigator
attribute NC_GLOBAL people_0_role_type String originator
attribute NC_GLOBAL people_1_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_1_affiliation_acronym String WHOI
attribute NC_GLOBAL people_1_person_name String Matthew A. Charette
attribute NC_GLOBAL people_1_person_nid String 50931
attribute NC_GLOBAL people_1_role String Co-Principal Investigator
attribute NC_GLOBAL people_1_role_type String originator
attribute NC_GLOBAL people_2_affiliation String University of South Carolina
attribute NC_GLOBAL people_2_person_name String Willard S. Moore
attribute NC_GLOBAL people_2_person_nid String 51613
attribute NC_GLOBAL people_2_role String Co-Principal Investigator
attribute NC_GLOBAL people_2_role_type String originator
attribute NC_GLOBAL people_3_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_3_affiliation_acronym String WHOI
attribute NC_GLOBAL people_3_person_name String Erin Black
attribute NC_GLOBAL people_3_person_nid String 643222
attribute NC_GLOBAL people_3_role String Contact
attribute NC_GLOBAL people_3_role_type String related
attribute NC_GLOBAL people_4_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_4_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_4_person_name String Shannon Rauch
attribute NC_GLOBAL people_4_person_nid String 51498
attribute NC_GLOBAL people_4_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_4_role_type String related
attribute NC_GLOBAL project String U.S. GEOTRACES EPZT,EPZT TEI Rates
attribute NC_GLOBAL projects_0_acronym String U.S. GEOTRACES EPZT
attribute NC_GLOBAL projects_0_description String From the NSF Award Abstract
The mission of the International GEOTRACES Program (www.geotraces.org), of which the U.S. chemical oceanography research community is a founding member, is "to identify processes and quantify fluxes that control the distributions of key trace elements and isotopes in the ocean, and to establish the sensitivity of these distributions to changing environmental conditions" (GEOTRACES Science Plan, 2006). In the United States, ocean chemists are currently in the process of organizing a zonal transect in the eastern tropical South Pacific (ETSP) from Peru to Tahiti as the second cruise of the U.S.GEOTRACES Program. This Pacific section includes a large area characterized by high rates of primary production and particle export in the eastern boundary associated with the Peru Upwelling, a large oxygen minimum zone that is a major global sink for fixed nitrogen, and a large hydrothermal plume arising from the East Pacific Rise. This particular section was selected as a result of open planning workshops in 2007 and 2008, with a final recommendation made by the U.S.GEOTRACES Steering Committee in 2009. It is the first part of a two-stage plan that will include a meridional section of the Pacific from Tahiti to Alaska as a subsequent expedition.
This award provides funding for management of the U.S.GEOTRACES Pacific campaign to a team of scientists from the University of Southern California, Old Dominion University, and the Woods Hole Oceanographic Institution. The three co-leaders will provide mission leadership, essential support services, and management structure for acquiring the trace elements and isotopes samples listed as core parameters in the International GEOTRACES Science Plan, plus hydrographic and nutrient data needed by participating investigators. With this support from NSF, the management team will (1) plan and coordinate the 52-day Pacific research cruise described above; (2) obtain representative samples for a wide variety of trace metals of interest using conventional CTD/rosette and GEOTRACES Sampling Systems; (3) acquire conventional JGOFS/WOCE-quality hydrographic data (CTD, transmissometer, fluorometer, oxygen sensor, etc) along with discrete samples for salinity, dissolved oxygen (to 1 uM detection limits), plant pigments, redox tracers such as ammonium and nitrite, and dissolved nutrients at micro- and nanomolar levels; (4) ensure that proper QA/QC protocols are followed and reported, as well as fulfilling all GEOTRACES Intercalibration protocols; (5) prepare and deliver all hydrographic-type data to the GEOTRACES Data Center (and US data centers); and (6) coordinate cruise communications between all participating investigators, including preparation of a hydrographic report/publication.
Broader Impacts: The project is part of an international collaborative program that has forged strong partnerships in the intercalibration and implementation phases that are unprecedented in chemical oceanography. The science product of these collective missions will enhance our ability to understand how to interpret the chemical composition of the ocean, and interpret how climate change will affect ocean chemistry. Partnerships include contributions to the infrastructure of developing nations with overlapping interests in the study area, in this case Peru. There is a strong educational component to the program, with many Ph.D. students carrying out thesis research within the program.
Figure 1. The 2013 GEOTRACES EPZT Cruise Track. [click on the image to view a larger version]
attribute NC_GLOBAL projects_0_end_date String 2015-06
attribute NC_GLOBAL projects_0_geolocation String Eastern Tropical Pacific - Transect from Peru to Tahiti
attribute NC_GLOBAL projects_0_name String U.S. GEOTRACES East Pacific Zonal Transect
attribute NC_GLOBAL projects_0_project_nid String 499723
attribute NC_GLOBAL projects_0_project_website String https://www.geotraces.org/ (external link)
attribute NC_GLOBAL projects_0_start_date String 2012-06
attribute NC_GLOBAL projects_1_acronym String EPZT TEI Rates
attribute NC_GLOBAL projects_1_description String Description from NSF award abstract:
​The goal of GEOTRACES is to identify processes and quantify fluxes that control the distribution of trace elements and isotopes (TEIs) in the ocean, and to establish the sensitivity of these distributions to changing environmental conditions. While the distribution of numerous TEIs will be mapped by a large team of GEOTRACES PIs along this transect, their distribution cannot be properly interpreted without concurrent measurement of tracers capable of providing rates of internal TEI cycling processes and fluxes at boundaries and across interfaces. Naturally-occurring radioisotopes of the Uranium-Thorium series are well suited for studying the sources and sinks of TEIs on time and space scales necessary to interpret lateral and vertical TEI distributions.
In this project, a research team from the Woods Hole Oceanographic Institution and the University of South Carolina at Columbia will carry out measurement of a suite of uranium/thorium series radionuclides on the US GEOTRACES cruise to the Eastern Tropical South Pacific (ETSP) Ocean. This radiotracer suite will include shorter-lived 234Th and 228Th as well as the radium quartet (224Ra, 223Ra, 228Ra, 226Ra), which together allow the quantification of rates of horizontal and vertical transport and mixing, as well as removal at ocean boundaries, surface export, and subsurface remineralization.
attribute NC_GLOBAL projects_1_end_date String 2016-05
attribute NC_GLOBAL projects_1_geolocation String East Pacific
attribute NC_GLOBAL projects_1_name String US GEOTRACES Pacific Zonal Transect: Rates of supply, removal and internal cycling of trace elements and isotopes
attribute NC_GLOBAL projects_1_project_nid String 648150
attribute NC_GLOBAL projects_1_start_date String 2012-12
attribute NC_GLOBAL publisher_name String Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute NC_GLOBAL publisher_type String institution
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double -16.0004
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String Water-column total Th-234 with 4 L method from the 2013 U.S. GEOTRACES EPZT cruise.\r\n\r\nU-238 from U-salinity relationship was also determined but not reported in this dataset. These data can be made available upon request from the PI and/or dataset contact. Methods are described below.
attribute NC_GLOBAL time_coverage_end String 2013-12-18T10:13Z
attribute NC_GLOBAL time_coverage_start String 2013-10-29T14:01Z
attribute NC_GLOBAL title String [GP16 Thorium-234 Total] - Water-column total Th-234 from R/V Thomas G. Thompson cruise TN303 in the Eastern Tropical Pacific in 2013 (U.S. GEOTRACES EPZT project) (U.S. GEOTRACES East Pacific Zonal Transect)
attribute NC_GLOBAL version String 7
attribute NC_GLOBAL Westernmost_Easting double -152.0004
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.5
variable Station_ID   byte  
attribute Station_ID _FillValue byte 127
attribute Station_ID actual_range byte 1, 36
attribute Station_ID bcodmo_name String station
attribute Station_ID description String Station number
attribute Station_ID long_name String Station ID
attribute Station_ID units String unitless
variable Start_Date_UTC   String  
attribute Start_Date_UTC bcodmo_name String date
attribute Start_Date_UTC description String Sampling start date (UTC); format: DD/MM/YYYY
attribute Start_Date_UTC long_name String Start Date UTC
attribute Start_Date_UTC nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/ (external link)
attribute Start_Date_UTC time_precision String 1970-01-01
attribute Start_Date_UTC units String unitless
variable Start_Time_UTC   String  
attribute Start_Time_UTC bcodmo_name String time
attribute Start_Time_UTC description String Sampling start time (UTC); format: hh:mm
attribute Start_Time_UTC long_name String Start Time UTC
attribute Start_Time_UTC nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/ (external link)
attribute Start_Time_UTC units String unitless
variable time   double  
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.38305526E9, 1.38736158E9
attribute time axis String T
attribute time bcodmo_name String ISO_DateTime_UTC
attribute time description String Sampling start date and time formatted to ISO8601 standard: YYYY-MM-DDThh:mmZ
attribute time ioos_category String Time
attribute time long_name String Start ISO Date Time UTC
attribute time nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/ (external link)
attribute time source_name String Start_ISO_DateTime_UTC
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time time_precision String 1970-01-01T00:00Z
attribute time units String seconds since 1970-01-01T00:00:00Z
variable End_Date_UTC   String  
attribute End_Date_UTC bcodmo_name String date
attribute End_Date_UTC description String Sampling end date (UTC); format: DD/MM/YYYY
attribute End_Date_UTC long_name String End Date UTC
attribute End_Date_UTC nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/ (external link)
attribute End_Date_UTC time_precision String 1970-01-01
attribute End_Date_UTC units String unitless
variable End_Time_UTC   String  
attribute End_Time_UTC bcodmo_name String time
attribute End_Time_UTC description String Sampling end time (UTC); format: hh:mm
attribute End_Time_UTC long_name String End Time UTC
attribute End_Time_UTC nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/ (external link)
attribute End_Time_UTC units String unitless
variable End_ISO_DateTime_UTC   String  
attribute End_ISO_DateTime_UTC bcodmo_name String ISO_DateTime_UTC
attribute End_ISO_DateTime_UTC description String Sampling end date and time formatted to ISO8601 standard: YYYY-MM-DDThh:mmZ
attribute End_ISO_DateTime_UTC long_name String End ISO Date Time UTC
attribute End_ISO_DateTime_UTC nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/ (external link)
attribute End_ISO_DateTime_UTC time_precision String 1970-01-01T00:00Z
attribute End_ISO_DateTime_UTC units String unitless
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double -16.0004, -10.25
attribute latitude axis String Y
attribute latitude bcodmo_name String latitude
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude description String Start latitude
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LATX/ (external link)
attribute latitude source_name String Start_Latitude
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
variable longitude   double  
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue double NaN
attribute longitude actual_range double -152.0004, -77.3761
attribute longitude axis String X
attribute longitude bcodmo_name String longitude
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude description String Start longitude
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LONX/ (external link)
attribute longitude source_name String Start_Longitude
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable End_Latitude   float  
attribute End_Latitude _FillValue float NaN
attribute End_Latitude actual_range float -16.0004, -10.25
attribute End_Latitude bcodmo_name String latitude
attribute End_Latitude colorBarMaximum double 90.0
attribute End_Latitude colorBarMinimum double -90.0
attribute End_Latitude description String End latitude
attribute End_Latitude long_name String Latitude
attribute End_Latitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LATX/ (external link)
attribute End_Latitude standard_name String latitude
attribute End_Latitude units String decimal degrees North
variable End_Longitude   float  
attribute End_Longitude _FillValue float NaN
attribute End_Longitude actual_range float -152.0004, -77.3761
attribute End_Longitude bcodmo_name String longitude
attribute End_Longitude colorBarMaximum double 180.0
attribute End_Longitude colorBarMinimum double -180.0
attribute End_Longitude description String End longitude
attribute End_Longitude long_name String Longitude
attribute End_Longitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LONX/ (external link)
attribute End_Longitude standard_name String longitude
attribute End_Longitude units String decimal degrees East
variable Event_ID   short  
attribute Event_ID _FillValue short 32767
attribute Event_ID actual_range short 4015, 4475
attribute Event_ID bcodmo_name String event
attribute Event_ID description String Event number
attribute Event_ID long_name String Event ID
attribute Event_ID nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/EVTAGFL/ (external link)
attribute Event_ID units String unitless
variable Sample_ID   short  
attribute Sample_ID _FillValue short 32767
attribute Sample_ID actual_range short 2092, 10457
attribute Sample_ID bcodmo_name String sample
attribute Sample_ID description String GEOTRACES sample number
attribute Sample_ID long_name String Sample ID
attribute Sample_ID nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/ACYC/ (external link)
attribute Sample_ID units String unitless
variable depth   double  
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth _FillValue double NaN
attribute depth actual_range double 1.8, 5447.4
attribute depth axis String Z
attribute depth bcodmo_name String depth
attribute depth description String Sample depth
attribute depth ioos_category String Location
attribute depth long_name String Sample Depth
attribute depth nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/DEPH/ (external link)
attribute depth positive String down
attribute depth standard_name String depth
attribute depth units String m
variable Th_234_T_CONC_BOTTLE_oepuv9   float  
attribute Th_234_T_CONC_BOTTLE_oepuv9 _FillValue float NaN
attribute Th_234_T_CONC_BOTTLE_oepuv9 actual_range float 8.46, 47.97
attribute Th_234_T_CONC_BOTTLE_oepuv9 bcodmo_name String trace_metal_conc
attribute Th_234_T_CONC_BOTTLE_oepuv9 description String Total dissolvable Thorium-234 activity (particulate AND dissolved matter). Samples collected by Niskin bottle.
attribute Th_234_T_CONC_BOTTLE_oepuv9 long_name String Th 234 T CONC BOTTLE Oepuv9
attribute Th_234_T_CONC_BOTTLE_oepuv9 nerc_identifier String https://vocab.nerc.ac.uk/collection/P03/current/C035/ (external link)
attribute Th_234_T_CONC_BOTTLE_oepuv9 units String mBq/kg
variable SD1_Th_234_T_CONC_BOTTLE_oepuv9   float  
attribute SD1_Th_234_T_CONC_BOTTLE_oepuv9 _FillValue float NaN
attribute SD1_Th_234_T_CONC_BOTTLE_oepuv9 actual_range float 0.33, 4.07
attribute SD1_Th_234_T_CONC_BOTTLE_oepuv9 bcodmo_name String trace_metal_conc
attribute SD1_Th_234_T_CONC_BOTTLE_oepuv9 description String One standard deviation of Th_234_T_CONC_BOTTLE_oepuv9
attribute SD1_Th_234_T_CONC_BOTTLE_oepuv9 long_name String SD1 Th 234 T CONC BOTTLE Oepuv9
attribute SD1_Th_234_T_CONC_BOTTLE_oepuv9 nerc_identifier String https://vocab.nerc.ac.uk/collection/P03/current/C035/ (external link)
attribute SD1_Th_234_T_CONC_BOTTLE_oepuv9 units String mBq/kg
variable Flag_Th_234_T_CONC_BOTTLE_oepuv9   byte  
attribute Flag_Th_234_T_CONC_BOTTLE_oepuv9 _FillValue byte 127
attribute Flag_Th_234_T_CONC_BOTTLE_oepuv9 actual_range byte 2, 9
attribute Flag_Th_234_T_CONC_BOTTLE_oepuv9 bcodmo_name String q_flag
attribute Flag_Th_234_T_CONC_BOTTLE_oepuv9 colorBarMaximum double 150.0
attribute Flag_Th_234_T_CONC_BOTTLE_oepuv9 colorBarMinimum double 0.0
attribute Flag_Th_234_T_CONC_BOTTLE_oepuv9 description String Quality flag for Th_234_T_CONC_BOTTLE_oepuv9
attribute Flag_Th_234_T_CONC_BOTTLE_oepuv9 long_name String Flag Th 234 T CONC BOTTLE Oepuv9
attribute Flag_Th_234_T_CONC_BOTTLE_oepuv9 units String None
variable Th_234_T_CONC_UWAY_gy2zni   float  
attribute Th_234_T_CONC_UWAY_gy2zni _FillValue float NaN
attribute Th_234_T_CONC_UWAY_gy2zni actual_range float 24.23, 29.92
attribute Th_234_T_CONC_UWAY_gy2zni bcodmo_name String trace_metal_conc
attribute Th_234_T_CONC_UWAY_gy2zni description String Total dissolvable Thorium-234 activity (particulate AND dissolved matter). Samples collected by the ship's underway system.
attribute Th_234_T_CONC_UWAY_gy2zni long_name String Th 234 T CONC UWAY Gy2zni
attribute Th_234_T_CONC_UWAY_gy2zni nerc_identifier String https://vocab.nerc.ac.uk/collection/P03/current/C035/ (external link)
attribute Th_234_T_CONC_UWAY_gy2zni units String mBq/kg
variable SD1_Th_234_T_CONC_UWAY_gy2zni   float  
attribute SD1_Th_234_T_CONC_UWAY_gy2zni _FillValue float NaN
attribute SD1_Th_234_T_CONC_UWAY_gy2zni actual_range float 0.65, 1.46
attribute SD1_Th_234_T_CONC_UWAY_gy2zni bcodmo_name String trace_metal_conc
attribute SD1_Th_234_T_CONC_UWAY_gy2zni description String One standard deviation of Th_234_T_CONC_UWAY_gy2zni
attribute SD1_Th_234_T_CONC_UWAY_gy2zni long_name String SD1 Th 234 T CONC UWAY Gy2zni
attribute SD1_Th_234_T_CONC_UWAY_gy2zni nerc_identifier String https://vocab.nerc.ac.uk/collection/P03/current/C035/ (external link)
attribute SD1_Th_234_T_CONC_UWAY_gy2zni units String mBq/kg
variable Flag_Th_234_T_CONC_UWAY_gy2zni   byte  
attribute Flag_Th_234_T_CONC_UWAY_gy2zni _FillValue byte 127
attribute Flag_Th_234_T_CONC_UWAY_gy2zni actual_range byte 2, 2
attribute Flag_Th_234_T_CONC_UWAY_gy2zni bcodmo_name String q_flag
attribute Flag_Th_234_T_CONC_UWAY_gy2zni colorBarMaximum double 150.0
attribute Flag_Th_234_T_CONC_UWAY_gy2zni colorBarMinimum double 0.0
attribute Flag_Th_234_T_CONC_UWAY_gy2zni description String Quality flag for Th_234_T_CONC_UWAY_gy2zni
attribute Flag_Th_234_T_CONC_UWAY_gy2zni long_name String Flag Th 234 T CONC UWAY Gy2zni
attribute Flag_Th_234_T_CONC_UWAY_gy2zni units String None

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