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   set  data   graph     files  public 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
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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 Water column sampling:
Radium and thorium isotopes were collected on manganese-coated cartridges
filtered at depth using an adapted McLane in situ pump (WTS-LV). The pumps
were programmed to filter 1500-2000L of seawater per deployment. Water (15-25
L) was also collected at the same depth using a 30L Niskin bottle; these
samples were filtered (at <1L/min) through a manganese-coated acrylic fiber
and used to calculate radium extraction efficiency of the pumped samples. The
cartridges were rinsed with radium-free fresh water and excess moisture was
removed using compressed air. Samples were analyzed three times using a
delayed coincidence counter (RaDeCC) for 223Ra, 224Ra, 228Th, and 227Ac. The
cartridge and fiber media were ashed at 820 degrees C and measured on gamma
detectors for long lived radium (226Ra, 228Ra) and thorium isotopes. 226Ra was
determined via alpha scintillation counting of the Niskin bottle Mn fiber
samples.

Surface water sampling:
Surface water radium samples (280 L) were collected from approximately 2 m
using a submersible surface pump and filtered through a manganese coated
acrylic fiber, which quantitatively scavenges radium from the seawater. Fiber
samples were then ashed in a muffle furnace at 820 degrees C for 24 hours and
the fiber ash was transferred to polystyrene vials, sealed with epoxy (to
prevent 222Rn loss), and counted on high purity, well-type germanium detectors
to measure 228Ra, using the lines of 228Ac (338 KeV and 911 KeV), and 226Ra,
using the line for 214Pb (352 KeV). Detector efficiencies were determined by
measuring ashed fiber standards prepared with a standard solution containing
226Ra and 232Th with daughters in equilibrium.
attribute NC_GLOBAL awards_0_award_nid String 718438
attribute NC_GLOBAL awards_0_award_number String OCE-1458305
attribute NC_GLOBAL awards_0_data_url String https://www.nsf.gov/awardsearch/showAward?AWD_ID=1458305 (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 718439
attribute NC_GLOBAL awards_1_award_number String OCE-1458424
attribute NC_GLOBAL awards_1_data_url String https://www.nsf.gov/awardsearch/showAward?AWD_ID=1458424 (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 Radium and Thorium Isotopes
GEOTRACES Arctic - HLY1502 (GN01)
PI: Matthew Charette (WHOI)
Co-PI: Willard Moore (University of South Carolina)
Version History:
06 April 2020 (current) - version 3; re-formatted for GEOTRACES IDP compliance.
02 July 2019 - version 2; additional data columns reported; additional columns for units in dpm/L and mBq/kg.
31 October 2017 - version 1.
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 date_created String 2017-10-31T18:02:40Z
attribute NC_GLOBAL date_modified String 2020-04-07T13:22:40Z
attribute NC_GLOBAL defaultDataQuery String &amp;time&lt;now
attribute NC_GLOBAL doi String 10.26008/1912/bco-dmo.718440.3
attribute NC_GLOBAL Easternmost_Easting double 179.456
attribute NC_GLOBAL geospatial_lat_max double 89.992
attribute NC_GLOBAL geospatial_lat_min double 60.176
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 179.456
attribute NC_GLOBAL geospatial_lon_min double -180.0
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 4197.0
attribute NC_GLOBAL geospatial_vertical_min double 2.0
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/718440 (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 In addition to water collected by pump, water (15-25 L) was also collected using a 30L Niskin bottles.
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 718453
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 30L Niskin bottles
attribute NC_GLOBAL instruments_1_acronym String MLVPump
attribute NC_GLOBAL instruments_1_dataset_instrument_description String Water column samples were collected using McLane in situ pumps (McLane WTS-LV).
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 718450
attribute NC_GLOBAL instruments_1_description String The Large Volume Pumping System-WTS-LV can be one of several different models of Water Transfer Systems (WTS) Large Volume (LV) pumping systems designed and manufactured by McLane Research Labs (Falmouth, MA, USA). The WTS-LV systems are large volume in-situ filtration systems designed to collect sinking particulates. WTS-LV systems are individual in situ, battery-powered, pumping/filtration units that can be deployed at multiple depths per cast to provide information on how particle flux changes with depth. The McLane WTS-LV series of oceanographic pumps draw ambient water through filters and can pump large volumes of seawater during a single cast. The WTS-LV pumps are designed for use from a hydro-wire and employ advanced control algorithms to dynamically optimize flow rates as material accumulates on a filter.
attribute NC_GLOBAL instruments_1_instrument_name String Large Volume Pumping System-WTS-LV
attribute NC_GLOBAL instruments_1_instrument_nid String 512
attribute NC_GLOBAL instruments_1_supplied_name String McLane WTS-LV
attribute NC_GLOBAL instruments_2_acronym String RaDeCC
attribute NC_GLOBAL instruments_2_dataset_instrument_description String Samples were analyzed using Radium Delayed Coincidence (RaDeCC) counters and high-purity, well-type germanium detectors.
attribute NC_GLOBAL instruments_2_dataset_instrument_nid String 718452
attribute NC_GLOBAL instruments_2_description String The RaDeCC is an alpha scintillation counter that distinguishes decay events of short-lived radium daughter products based on their contrasting half-lives. This system was pioneered by Giffin et al. (1963) and adapted for radium measurements by Moore and Arnold (1996).

References:
Giffin, C., A. Kaufman, W.S. Broecker (1963). Delayed coincidence counter for the assay of actinon and thoron. J. Geophys. Res., 68, pp. 1749-1757.
Moore, W.S., R. Arnold (1996). Measurement of 223Ra and 224Ra in coastal waters using a delayed coincidence counter.
J. Geophys. Res., 101 (1996), pp. 1321-1329.
Charette, Matthew A.; Dulaiova, Henrieta; Gonneea, Meagan E.; Henderson, Paul B.; Moore, Willard S.; Scholten, Jan C.; Pham, M. K. (2012). GEOTRACES radium isotopes interlaboratory comparison experiment. Limnology and Oceanography - Methods, vol 10, pg 451.
attribute NC_GLOBAL instruments_2_instrument_name String Radium Delayed Coincidence Counter
attribute NC_GLOBAL instruments_2_instrument_nid String 688
attribute NC_GLOBAL instruments_2_supplied_name String Radium Delayed Coincidence Counter
attribute NC_GLOBAL instruments_3_dataset_instrument_description String Surface samples were collected using a Finish Thompson 1/2 HP Polypropylene 115V Magnetic Drive pump.
attribute NC_GLOBAL instruments_3_dataset_instrument_nid String 718451
attribute NC_GLOBAL instruments_3_description String A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action. Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps
attribute NC_GLOBAL instruments_3_instrument_name String Pump
attribute NC_GLOBAL instruments_3_instrument_nid String 726
attribute NC_GLOBAL instruments_3_supplied_name String Finish Thompson Magnetic Drive pump
attribute NC_GLOBAL keywords String 223xs, 224xs, 5i7kz7, 8qp1jk, bco, bco-dmo, biological, castno, chemical, conc, cruise, Cruise_ID, data, dataset, date, depth, dmo, end, End_Date_UTC, End_ISO_DateTime_UTC, End_Latitude, End_Longitude, End_Time_UTC, erddap, error, event, Event_ID, fejwms, flag, Flag_Ra_223_D_CONC_PUMP_8qp1jk, Flag_Ra_224_D_CONC_PUMP_ryelyc, Flag_Ra_226_D_CONC_PUMP_tmldld, Flag_Ra_228_D_CONC_PUMP_5i7kz7, Flag_Th_228_D_CONC_PUMP_fejwms, geotrc, GEOTRC_CASTNO, GEOTRC_INSTR, instr, iso, latitude, longitude, management, oceanography, office, preliminary, pump, Ra_223_D_CONC_PUMP_8qp1jk, Ra_223xs_D_CONC_PUMP, Ra_223xs_D_CONC_PUMP_ERR, Ra_223xs_D_CONC_PUMP_FLAG, Ra_224_D_CONC_PUMP_ryelyc, Ra_224xs_D_CONC_PUMP, Ra_224xs_D_CONC_PUMP_ERR, Ra_224xs_D_CONC_PUMP_FLAG, Ra_226_D_CONC_PUMP_tmldld, Ra_228_D_CONC_PUMP_5i7kz7, ryelyc, sample, Sample_Depth, Sample_ID, sd1, SD1_Ra_223_D_CONC_PUMP_8qp1jk, SD1_Ra_224_D_CONC_PUMP_ryelyc, SD1_Ra_226_D_CONC_PUMP_tmldld, SD1_Ra_228_D_CONC_PUMP_5i7kz7, SD1_Th_228_D_CONC_PUMP_fejwms, start, Start_Date_UTC, Start_Time_UTC, station, Station_ID, Th_228_D_CONC_PUMP_fejwms, time, tmldld
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/718440/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/718440 (external link)
attribute NC_GLOBAL Northernmost_Northing double 89.992
attribute NC_GLOBAL param_mapping String {'718440': {'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/718440/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 Matthew A. Charette
attribute NC_GLOBAL people_0_person_nid String 50931
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 University of South Carolina
attribute NC_GLOBAL people_1_person_name String Willard S Moore
attribute NC_GLOBAL people_1_person_nid String 51613
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 Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_2_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_2_person_name String Shannon Rauch
attribute NC_GLOBAL people_2_person_nid String 51498
attribute NC_GLOBAL people_2_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_2_role_type String related
attribute NC_GLOBAL project String U.S. GEOTRACES Arctic,Arctic GEOTRACES Ra Th
attribute NC_GLOBAL projects_0_acronym String U.S. GEOTRACES Arctic
attribute NC_GLOBAL projects_0_description String Description from NSF award abstract:
In pursuit of its goal "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", in 2015 the International GEOTRACES Program will embark on several years of research in the Arctic Ocean. In a region where climate warming and general environmental change are occurring at amazing speed, research such as this is important for understanding the current state of Arctic Ocean geochemistry and for developing predictive capability as the regional ecosystem continues to warm and influence global oceanic and climatic conditions. The three investigators funded on this award, will manage a large team of U.S.scientists who will compete through the regular NSF proposal process to contribute their own unique expertise in marine trace metal, isotopic, and carbon cycle geochemistry to the U.S. effort. The three managers will be responsible for arranging and overseeing at-sea technical services such as hydrographic measurements, nutrient analyses, and around-the-clock management of on-deck sampling activites upon which all participants depend, and for organizing all pre- and post-cruise technical support and scientific meetings. The management team will also lead educational outreach activities for the general public in Nome and Barrow, Alaska, to explain the significance of the study to these communities and to learn from residents' insights on observed changes in the marine system. The project itself will provide for the support and training of a number of pre-doctoral students and post-doctoral researchers. Inasmuch as the Arctic Ocean is an epicenter of global climate change, findings of this study are expected to advance present capability to forecast changes in regional and globlal ecosystem and climate system functioning.
As the United States' contribution to the International GEOTRACES Arctic Ocean initiative, this project will be part of an ongoing multi-national effort to further scientific knowledge about trace elements and isotopes in the world ocean. This U.S. expedition will focus on the western Arctic Ocean in the boreal summer of 2015. The scientific team will consist of the management team funded through this award plus a team of scientists from U.S. academic institutions who will have successfully competed for and received NSF funds for specific science projects in time to participate in the final stages of cruise planning. The cruise track segments will include the Bering Strait, Chukchi shelf, and the deep Canada Basin. Several stations will be designated as so-called super stations for intense study of atmospheric aerosols, sea ice, and sediment chemistry as well as water-column processes. In total, the set of coordinated international expeditions will involve the deployment of ice-capable research ships from 6 nations (US, Canada, Germany, Sweden, UK, and Russia) across different parts of the Arctic Ocean, and application of state-of-the-art methods to unravel the complex dynamics of trace metals and isotopes that are important as oceanographic and biogeochemical tracers in the sea.
attribute NC_GLOBAL projects_0_end_date String 2017-06
attribute NC_GLOBAL projects_0_geolocation String Arctic Ocean; Sailing from Dutch Harbor to Dutch Harbor
attribute NC_GLOBAL projects_0_name String U.S. Arctic GEOTRACES Study
attribute NC_GLOBAL projects_0_project_nid String 638812
attribute NC_GLOBAL projects_0_start_date String 2014-07
attribute NC_GLOBAL projects_1_acronym String Arctic GEOTRACES Ra Th
attribute NC_GLOBAL projects_1_description String NSF Award Abstract:
In this project, investigators participating in the 2015 U.S. GEOTRACES Arctic expedition will measure radium and thorium isotopes in the western Arctic Ocean. In common with other national initiatives in the International GEOTRACES Program, the goals of the U.S. Arctic expedition are 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. Some trace elements are essential to life, others are known biological toxins, and still others are important because they can be used as tracers of a variety of physical, chemical, and biological processes in the sea. The radionuclides to be measured as part of this project are important because they are oceanographic tracers that provide information on rates of cycling of other trace elements. The project will involve training opportunities for graduate student researchers and for undergraduate students from under-represented groups. Results from the study will be shared publicly through the Woods Hole Oceanographic Institution's Center for Marine and Environmental Radioactivity.
While other GEOTRACES projects will map the distribution of numerous trace elements and their isotopes (TEIs), 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. The isotopes to be measured in this project include a suite of uranium/thorium series radionuclides, including the shorter-lived 234-Th and 228-Th as well as the radium quartet (224-Ra, 223-Ra, 228-Ra, 226-Ra). These tracers have the appropriate half-lives and reactivities to allow for study of horizontal and vertical transport and mixing, as well as removal at ocean boundaries, supply via rivers and submarine groundwater discharge, surface scavenging and export and subsurface remineralization. The researchers have considerable experience developing and implementing the most efficient methods to sample and quantify this suite of tracers, which includes use of battery powered in-situ pumps for large volume sampling. Hence, in addition to the proposed work on uranium/thorium series radionuclides, the team will also provide a service to other GEOTRACES researchers by coordinating pump use and sampling for many essential particulate TEIs.
attribute NC_GLOBAL projects_1_end_date String 2018-01
attribute NC_GLOBAL projects_1_geolocation String Western Arctic Ocean
attribute NC_GLOBAL projects_1_name String Collaborative Research: GEOTRACES Arctic Section: Radium and Thorium Isotopes as Natural Geochemical Tracers in the Arctic Ocean
attribute NC_GLOBAL projects_1_project_nid String 718522
attribute NC_GLOBAL projects_1_start_date String 2015-02
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 60.176
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL subsetVariables String Cruise_ID
attribute NC_GLOBAL summary String 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.
attribute NC_GLOBAL time_coverage_end String 2015-10-07T22:44Z
attribute NC_GLOBAL time_coverage_start String 2015-08-12T21:50Z
attribute NC_GLOBAL title String 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
attribute NC_GLOBAL version String 3
attribute NC_GLOBAL Westernmost_Easting double -180.0
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable Cruise_ID   String  
attribute Cruise_ID bcodmo_name String cruise_id
attribute Cruise_ID description String GEOTRACES cruise identifier
attribute Cruise_ID long_name String Cruise ID
attribute Cruise_ID units String unitless
variable GEOTRC_CASTNO   byte  
attribute GEOTRC_CASTNO _FillValue byte 127
attribute GEOTRC_CASTNO actual_range byte 2, 13
attribute GEOTRC_CASTNO bcodmo_name String cast
attribute GEOTRC_CASTNO description String Cast number
attribute GEOTRC_CASTNO long_name String GEOTRC CASTNO
attribute GEOTRC_CASTNO units String unitless
variable GEOTRC_INSTR   String  
attribute GEOTRC_INSTR bcodmo_name String instrument
attribute GEOTRC_INSTR description String Sampling method
attribute GEOTRC_INSTR long_name String GEOTRC INSTR
attribute GEOTRC_INSTR units String unitless
variable Station_ID   float  
attribute Station_ID _FillValue float NaN
attribute Station_ID actual_range float 1.0, 66.0
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 Date (UTC) at start of sample collection; format: yyyy-mm-dd
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 Time (UTC) at start of sample collection; 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 1.4394162E9, 1.44425784E9
attribute time axis String T
attribute time bcodmo_name String ISO_DateTime_UTC
attribute time description String Date and time (UTC) at start of sample collection; format: 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 Date (UTC) at end of sample collection; format: yyyy-mm-dd
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 Time (UTC) at end of sample collection; 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 Date and time (UTC) at end of sample collection; format: 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 60.176, 89.992
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 Latitude at start of sample collection
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 -180.0, 179.456
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 Longitude at start of sample collection
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 60.176, 89.992
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 Latitude at end of sample collection
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 degrees North
variable End_Longitude   float  
attribute End_Longitude _FillValue float NaN
attribute End_Longitude actual_range float -180.0, 179.456
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 Longitude at end of sample collection
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 degrees East
variable Event_ID   short  
attribute Event_ID _FillValue short 32767
attribute Event_ID actual_range short 6011, 9218
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 10506, 12313
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 2.0, 4197.0
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 Ra_226_D_CONC_PUMP_tmldld   float  
attribute Ra_226_D_CONC_PUMP_tmldld _FillValue float NaN
attribute Ra_226_D_CONC_PUMP_tmldld actual_range float 0.3466, 2.7572
attribute Ra_226_D_CONC_PUMP_tmldld bcodmo_name String radioactive_isotope_conc
attribute Ra_226_D_CONC_PUMP_tmldld description String Dissolved radium-226 activity
attribute Ra_226_D_CONC_PUMP_tmldld long_name String Ra 226 D CONC PUMP Tmldld
attribute Ra_226_D_CONC_PUMP_tmldld nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/WRAD/ (external link)
attribute Ra_226_D_CONC_PUMP_tmldld units String mBq/kg
variable SD1_Ra_226_D_CONC_PUMP_tmldld   float  
attribute SD1_Ra_226_D_CONC_PUMP_tmldld _FillValue float NaN
attribute SD1_Ra_226_D_CONC_PUMP_tmldld actual_range float 0.0095, 0.1609
attribute SD1_Ra_226_D_CONC_PUMP_tmldld bcodmo_name String radioactive_isotope_conc
attribute SD1_Ra_226_D_CONC_PUMP_tmldld description String One standard deviation of Ra_226_D_CONC_PUMP_tmldld
attribute SD1_Ra_226_D_CONC_PUMP_tmldld long_name String SD1 Ra 226 D CONC PUMP Tmldld
attribute SD1_Ra_226_D_CONC_PUMP_tmldld nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/WRAD/ (external link)
attribute SD1_Ra_226_D_CONC_PUMP_tmldld units String mBq/kg
variable Flag_Ra_226_D_CONC_PUMP_tmldld   byte  
attribute Flag_Ra_226_D_CONC_PUMP_tmldld _FillValue byte 127
attribute Flag_Ra_226_D_CONC_PUMP_tmldld actual_range byte 1, 8
attribute Flag_Ra_226_D_CONC_PUMP_tmldld bcodmo_name String q_flag
attribute Flag_Ra_226_D_CONC_PUMP_tmldld colorBarMaximum double 150.0
attribute Flag_Ra_226_D_CONC_PUMP_tmldld colorBarMinimum double 0.0
attribute Flag_Ra_226_D_CONC_PUMP_tmldld description String SeaDataNet quality flag for Ra_226_D_CONC_PUMP_tmldld
attribute Flag_Ra_226_D_CONC_PUMP_tmldld long_name String Flag Ra 226 D CONC PUMP Tmldld
attribute Flag_Ra_226_D_CONC_PUMP_tmldld units String unitless
variable Ra_228_D_CONC_PUMP_5i7kz7   float  
attribute Ra_228_D_CONC_PUMP_5i7kz7 _FillValue float NaN
attribute Ra_228_D_CONC_PUMP_5i7kz7 actual_range float 0.0245, 3.7899
attribute Ra_228_D_CONC_PUMP_5i7kz7 bcodmo_name String radioactive_isotope_conc
attribute Ra_228_D_CONC_PUMP_5i7kz7 description String Dissolved radium-228 activity
attribute Ra_228_D_CONC_PUMP_5i7kz7 long_name String Ra 228 D CONC PUMP 5i7kz7
attribute Ra_228_D_CONC_PUMP_5i7kz7 nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/WRAD/ (external link)
attribute Ra_228_D_CONC_PUMP_5i7kz7 units String mBq/kg
variable SD1_Ra_228_D_CONC_PUMP_5i7kz7   float  
attribute SD1_Ra_228_D_CONC_PUMP_5i7kz7 _FillValue float NaN
attribute SD1_Ra_228_D_CONC_PUMP_5i7kz7 actual_range float 0.0063, 0.2429
attribute SD1_Ra_228_D_CONC_PUMP_5i7kz7 bcodmo_name String radioactive_isotope_conc
attribute SD1_Ra_228_D_CONC_PUMP_5i7kz7 description String One standard deviation of Ra_228_D_CONC_PUMP_5i7kz7
attribute SD1_Ra_228_D_CONC_PUMP_5i7kz7 long_name String SD1 Ra 228 D CONC PUMP 5i7kz7
attribute SD1_Ra_228_D_CONC_PUMP_5i7kz7 nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/WRAD/ (external link)
attribute SD1_Ra_228_D_CONC_PUMP_5i7kz7 units String mBq/kg
variable Flag_Ra_228_D_CONC_PUMP_5i7kz7   byte  
attribute Flag_Ra_228_D_CONC_PUMP_5i7kz7 _FillValue byte 127
attribute Flag_Ra_228_D_CONC_PUMP_5i7kz7 actual_range byte 1, 9
attribute Flag_Ra_228_D_CONC_PUMP_5i7kz7 bcodmo_name String q_flag
attribute Flag_Ra_228_D_CONC_PUMP_5i7kz7 colorBarMaximum double 150.0
attribute Flag_Ra_228_D_CONC_PUMP_5i7kz7 colorBarMinimum double 0.0
attribute Flag_Ra_228_D_CONC_PUMP_5i7kz7 description String SeaDataNet quality flag for Ra_228_D_CONC_PUMP_5i7kz7
attribute Flag_Ra_228_D_CONC_PUMP_5i7kz7 long_name String Flag Ra 228 D CONC PUMP 5i7kz7
attribute Flag_Ra_228_D_CONC_PUMP_5i7kz7 units String unitless
variable Ra_224_D_CONC_PUMP_ryelyc   float  
attribute Ra_224_D_CONC_PUMP_ryelyc _FillValue float NaN
attribute Ra_224_D_CONC_PUMP_ryelyc actual_range float 0.0048, 1.2063
attribute Ra_224_D_CONC_PUMP_ryelyc bcodmo_name String radioactive_isotope_conc
attribute Ra_224_D_CONC_PUMP_ryelyc description String Dissolved radium-224 activity
attribute Ra_224_D_CONC_PUMP_ryelyc long_name String Ra 224 D CONC PUMP Ryelyc
attribute Ra_224_D_CONC_PUMP_ryelyc nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/WRAD/ (external link)
attribute Ra_224_D_CONC_PUMP_ryelyc units String mBq/kg
variable SD1_Ra_224_D_CONC_PUMP_ryelyc   float  
attribute SD1_Ra_224_D_CONC_PUMP_ryelyc _FillValue float NaN
attribute SD1_Ra_224_D_CONC_PUMP_ryelyc actual_range float 0.001, 0.1293
attribute SD1_Ra_224_D_CONC_PUMP_ryelyc bcodmo_name String radioactive_isotope_conc
attribute SD1_Ra_224_D_CONC_PUMP_ryelyc description String One standard deviation of Ra_224_D_CONC_PUMP_ryelyc
attribute SD1_Ra_224_D_CONC_PUMP_ryelyc long_name String SD1 Ra 224 D CONC PUMP Ryelyc
attribute SD1_Ra_224_D_CONC_PUMP_ryelyc nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/WRAD/ (external link)
attribute SD1_Ra_224_D_CONC_PUMP_ryelyc units String mBq/kg
variable Flag_Ra_224_D_CONC_PUMP_ryelyc   byte  
attribute Flag_Ra_224_D_CONC_PUMP_ryelyc _FillValue byte 127
attribute Flag_Ra_224_D_CONC_PUMP_ryelyc actual_range byte 2, 9
attribute Flag_Ra_224_D_CONC_PUMP_ryelyc bcodmo_name String q_flag
attribute Flag_Ra_224_D_CONC_PUMP_ryelyc colorBarMaximum double 150.0
attribute Flag_Ra_224_D_CONC_PUMP_ryelyc colorBarMinimum double 0.0
attribute Flag_Ra_224_D_CONC_PUMP_ryelyc description String SeaDataNet quality flag for Ra_224_D_CONC_PUMP_ryelyc
attribute Flag_Ra_224_D_CONC_PUMP_ryelyc long_name String Flag Ra 224 D CONC PUMP Ryelyc
attribute Flag_Ra_224_D_CONC_PUMP_ryelyc units String unitless
variable Ra_224xs_D_CONC_PUMP   float  
attribute Ra_224xs_D_CONC_PUMP _FillValue float NaN
attribute Ra_224xs_D_CONC_PUMP actual_range float 7.0E-4, 0.6965
attribute Ra_224xs_D_CONC_PUMP bcodmo_name String radioactive_isotope_conc
attribute Ra_224xs_D_CONC_PUMP description String Excess dissolved radium-224 activity
attribute Ra_224xs_D_CONC_PUMP long_name String Ra 224xs D CONC PUMP
attribute Ra_224xs_D_CONC_PUMP nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/WRAD/ (external link)
attribute Ra_224xs_D_CONC_PUMP units String mBq/kg
variable Ra_224xs_D_CONC_PUMP_ERR   float  
attribute Ra_224xs_D_CONC_PUMP_ERR _FillValue float NaN
attribute Ra_224xs_D_CONC_PUMP_ERR actual_range float 0.0026, 0.167
attribute Ra_224xs_D_CONC_PUMP_ERR bcodmo_name String radioactive_isotope_conc
attribute Ra_224xs_D_CONC_PUMP_ERR description String One standard deviation of Ra_224xs_D_CONC_PUMP
attribute Ra_224xs_D_CONC_PUMP_ERR long_name String Ra 224xs D CONC PUMP ERR
attribute Ra_224xs_D_CONC_PUMP_ERR nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/WRAD/ (external link)
attribute Ra_224xs_D_CONC_PUMP_ERR units String mBq/kg
variable Ra_224xs_D_CONC_PUMP_FLAG   byte  
attribute Ra_224xs_D_CONC_PUMP_FLAG _FillValue byte 127
attribute Ra_224xs_D_CONC_PUMP_FLAG actual_range byte 2, 9
attribute Ra_224xs_D_CONC_PUMP_FLAG bcodmo_name String q_flag
attribute Ra_224xs_D_CONC_PUMP_FLAG colorBarMaximum double 150.0
attribute Ra_224xs_D_CONC_PUMP_FLAG colorBarMinimum double 0.0
attribute Ra_224xs_D_CONC_PUMP_FLAG description String SeaDataNet quality flag for Ra_224xs_D_CONC_PUMP
attribute Ra_224xs_D_CONC_PUMP_FLAG long_name String Ra 224xs D CONC PUMP FLAG
attribute Ra_224xs_D_CONC_PUMP_FLAG units String unitless
variable Ra_223_D_CONC_PUMP_8qp1jk   float  
attribute Ra_223_D_CONC_PUMP_8qp1jk _FillValue float NaN
attribute Ra_223_D_CONC_PUMP_8qp1jk actual_range float 0.0, 0.1149
attribute Ra_223_D_CONC_PUMP_8qp1jk bcodmo_name String radioactive_isotope_conc
attribute Ra_223_D_CONC_PUMP_8qp1jk description String Dissolved radium-223 activity
attribute Ra_223_D_CONC_PUMP_8qp1jk long_name String Ra 223 D CONC PUMP 8qp1jk
attribute Ra_223_D_CONC_PUMP_8qp1jk nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/WRAD/ (external link)
attribute Ra_223_D_CONC_PUMP_8qp1jk units String mBq/kg
variable SD1_Ra_223_D_CONC_PUMP_8qp1jk   float  
attribute SD1_Ra_223_D_CONC_PUMP_8qp1jk _FillValue float NaN
attribute SD1_Ra_223_D_CONC_PUMP_8qp1jk actual_range float 0.0, 0.0452
attribute SD1_Ra_223_D_CONC_PUMP_8qp1jk bcodmo_name String radioactive_isotope_conc
attribute SD1_Ra_223_D_CONC_PUMP_8qp1jk description String One standard deviation of Ra_223_D_CONC_PUMP_8qp1jk
attribute SD1_Ra_223_D_CONC_PUMP_8qp1jk long_name String SD1 Ra 223 D CONC PUMP 8qp1jk
attribute SD1_Ra_223_D_CONC_PUMP_8qp1jk nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/WRAD/ (external link)
attribute SD1_Ra_223_D_CONC_PUMP_8qp1jk units String mBq/kg
variable Flag_Ra_223_D_CONC_PUMP_8qp1jk   byte  
attribute Flag_Ra_223_D_CONC_PUMP_8qp1jk _FillValue byte 127
attribute Flag_Ra_223_D_CONC_PUMP_8qp1jk actual_range byte 2, 9
attribute Flag_Ra_223_D_CONC_PUMP_8qp1jk bcodmo_name String q_flag
attribute Flag_Ra_223_D_CONC_PUMP_8qp1jk colorBarMaximum double 150.0
attribute Flag_Ra_223_D_CONC_PUMP_8qp1jk colorBarMinimum double 0.0
attribute Flag_Ra_223_D_CONC_PUMP_8qp1jk description String SeaDataNet quality flag for Ra_223_D_CONC_PUMP_8qp1jk
attribute Flag_Ra_223_D_CONC_PUMP_8qp1jk long_name String Flag Ra 223 D CONC PUMP 8qp1jk
attribute Flag_Ra_223_D_CONC_PUMP_8qp1jk units String unitless
variable Ra_223xs_D_CONC_PUMP   float  
attribute Ra_223xs_D_CONC_PUMP _FillValue float NaN
attribute Ra_223xs_D_CONC_PUMP actual_range float 1.0E-4, 0.1087
attribute Ra_223xs_D_CONC_PUMP bcodmo_name String radioactive_isotope_conc
attribute Ra_223xs_D_CONC_PUMP description String Excess dissolved radium-223 actvitiy
attribute Ra_223xs_D_CONC_PUMP long_name String Ra 223xs D CONC PUMP
attribute Ra_223xs_D_CONC_PUMP nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/WRAD/ (external link)
attribute Ra_223xs_D_CONC_PUMP units String mBq/kg
variable Ra_223xs_D_CONC_PUMP_ERR   float  
attribute Ra_223xs_D_CONC_PUMP_ERR _FillValue float NaN
attribute Ra_223xs_D_CONC_PUMP_ERR actual_range float 9.0E-4, 0.0452
attribute Ra_223xs_D_CONC_PUMP_ERR bcodmo_name String radioactive_isotope_conc
attribute Ra_223xs_D_CONC_PUMP_ERR description String One standard deviation of Ra_223xs_D_CONC_PUMP
attribute Ra_223xs_D_CONC_PUMP_ERR long_name String Ra 223xs D CONC PUMP ERR
attribute Ra_223xs_D_CONC_PUMP_ERR nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/WRAD/ (external link)
attribute Ra_223xs_D_CONC_PUMP_ERR units String mBq/kg
variable Ra_223xs_D_CONC_PUMP_FLAG   byte  
attribute Ra_223xs_D_CONC_PUMP_FLAG _FillValue byte 127
attribute Ra_223xs_D_CONC_PUMP_FLAG actual_range byte 2, 9
attribute Ra_223xs_D_CONC_PUMP_FLAG bcodmo_name String q_flag
attribute Ra_223xs_D_CONC_PUMP_FLAG colorBarMaximum double 150.0
attribute Ra_223xs_D_CONC_PUMP_FLAG colorBarMinimum double 0.0
attribute Ra_223xs_D_CONC_PUMP_FLAG description String SeaDataNet quality flag for Ra_223xs_D_CONC_PUMP
attribute Ra_223xs_D_CONC_PUMP_FLAG long_name String Ra 223xs D CONC PUMP FLAG
attribute Ra_223xs_D_CONC_PUMP_FLAG units String unitless
variable Th_228_D_CONC_PUMP_fejwms   float  
attribute Th_228_D_CONC_PUMP_fejwms _FillValue float NaN
attribute Th_228_D_CONC_PUMP_fejwms actual_range float 0.0055, 1.5825
attribute Th_228_D_CONC_PUMP_fejwms bcodmo_name String radioactive_isotope_conc
attribute Th_228_D_CONC_PUMP_fejwms description String Dissolved thorium-228 activity
attribute Th_228_D_CONC_PUMP_fejwms long_name String Th 228 D CONC PUMP Fejwms
attribute Th_228_D_CONC_PUMP_fejwms nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/WRAD/ (external link)
attribute Th_228_D_CONC_PUMP_fejwms units String mBq/kg
variable SD1_Th_228_D_CONC_PUMP_fejwms   float  
attribute SD1_Th_228_D_CONC_PUMP_fejwms _FillValue float NaN
attribute SD1_Th_228_D_CONC_PUMP_fejwms actual_range float 9.0E-4, 3.6846
attribute SD1_Th_228_D_CONC_PUMP_fejwms bcodmo_name String radioactive_isotope_conc
attribute SD1_Th_228_D_CONC_PUMP_fejwms description String One standard deviation of Th_228_D_CONC_PUMP_fejwms
attribute SD1_Th_228_D_CONC_PUMP_fejwms long_name String SD1 Th 228 D CONC PUMP Fejwms
attribute SD1_Th_228_D_CONC_PUMP_fejwms nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/WRAD/ (external link)
attribute SD1_Th_228_D_CONC_PUMP_fejwms units String mBq/kg
variable Flag_Th_228_D_CONC_PUMP_fejwms   byte  
attribute Flag_Th_228_D_CONC_PUMP_fejwms _FillValue byte 127
attribute Flag_Th_228_D_CONC_PUMP_fejwms actual_range byte 2, 9
attribute Flag_Th_228_D_CONC_PUMP_fejwms bcodmo_name String q_flag
attribute Flag_Th_228_D_CONC_PUMP_fejwms colorBarMaximum double 150.0
attribute Flag_Th_228_D_CONC_PUMP_fejwms colorBarMinimum double 0.0
attribute Flag_Th_228_D_CONC_PUMP_fejwms description String SeaDataNet quality flag for Th_228_D_CONC_PUMP_fejwms
attribute Flag_Th_228_D_CONC_PUMP_fejwms long_name String Flag Th 228 D CONC PUMP Fejwms
attribute Flag_Th_228_D_CONC_PUMP_fejwms units String unitless

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