Accessing BCO-DMO data
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BCO-DMO ERDDAP
Accessing BCO-DMO data |
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| Dataset Title: | [GN01 Dissolved Pb - UAF] - Dissolved Pb concentration data from the US GEOTRACES Arctic Expedition (GN01, HLY1502) from August to October 2015 (U.S. Arctic GEOTRACES Study) 
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| Institution: | BCO-DMO (Dataset ID: bcodmo_dataset_762056) |
| Information: | Summary
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Attributes {
s {
EXPOCODE {
String bcodmo_name "EXPOCODE";
String description "Cruise EXPO code";
String long_name "EXPOCODE";
String units "unitless";
}
SECT_ID {
String bcodmo_name "Cruise Name";
String description "Section ID";
String long_name "SECT ID";
String units "unitless";
}
STNNBR {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 66;
String bcodmo_name "station";
String description "Station number";
String long_name "STNNBR";
String units "unitless";
}
CASTNO {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 25;
String bcodmo_name "cast";
String description "Cast number";
String long_name "CASTNO";
String units "unitless";
}
DATE {
Int32 _FillValue 2147483647;
Int32 actual_range 20150812, 20151008;
String bcodmo_name "date";
String description "Date (UTC); format: yyyymmdd";
String long_name "DATE";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/";
String units "unitless";
}
time2 {
Int16 _FillValue 32767;
Int16 actual_range 6, 2400;
String bcodmo_name "time";
String description "Time (UTC); format: HHMM";
String long_name "TIME";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/";
String units "unitless";
}
latitude {
String _CoordinateAxisType "Lat";
Float64 _FillValue NaN;
Float64 actual_range 60.165, 89.995;
String axis "Y";
String bcodmo_name "latitude";
Float64 colorBarMaximum 90.0;
Float64 colorBarMinimum -90.0;
String description "Latitude; positive values = North";
String ioos_category "Location";
String long_name "Latitude";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LATX/";
String standard_name "latitude";
String units "degrees_north";
}
longitude {
String _CoordinateAxisType "Lon";
Float64 _FillValue NaN;
Float64 actual_range -179.8082, 179.5926;
String axis "X";
String bcodmo_name "longitude";
Float64 colorBarMaximum 180.0;
Float64 colorBarMinimum -180.0;
String description "Longitude; positive values = East";
String ioos_category "Location";
String long_name "Longitude";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LONX/";
String standard_name "longitude";
String units "degrees_east";
}
CTDPRS {
Float32 _FillValue NaN;
Float32 actual_range 1.0, 4287.3;
String bcodmo_name "pressure";
String description "CTD Pressure";
String long_name "CTDPRS";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/PRESPR01/";
String units "decibars";
}
depth {
String _CoordinateAxisType "Height";
String _CoordinateZisPositive "down";
Float64 _FillValue NaN;
Float64 actual_range 1.0, 4198.9;
String axis "Z";
String bcodmo_name "depth";
String description "CTD Depth";
String ioos_category "Location";
String long_name "CTDDEPTH";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/DEPH/";
String positive "down";
String standard_name "depth";
String units "m";
}
GEOTRC_SAMPNO {
Int16 _FillValue 32767;
Int16 actual_range 10471, 12314;
String bcodmo_name "sample";
String description "GEOTRACES sample number";
String long_name "GEOTRC SAMPNO";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P02/current/ACYC/";
String units "unitless";
}
GEOTRC_EVENTNO {
Int16 _FillValue 32767;
Int16 actual_range 6009, 6491;
String bcodmo_name "event";
String description "Event number";
String long_name "GEOTRC EVENTNO";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/EVTAGFL/";
String units "unitless";
}
SAMPNO {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 25;
String bcodmo_name "bottle";
String description "Sequential sample number within the cast (usually corresponds to bottle number).";
String long_name "SAMPNO";
String units "unitless";
}
BTLNBR {
String bcodmo_name "bottle";
String description "Bottle number; typically 1-24.";
String long_name "BTLNBR";
String units "unitless";
}
PB_D_CONC_BOTTLE {
Float32 _FillValue NaN;
Float32 actual_range -0.8, 40.4;
String bcodmo_name "trace_metal_conc";
String description "Dissolved lead (Pb) concentration";
String long_name "PB D CONC BOTTLE";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P03/current/C035/";
String units "picomoles per kilogram (pMol/kg)";
}
PB_CONC_FLAG {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 2, 2;
String bcodmo_name "q_flag";
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String description "WOCE Quality Flag for PB_D_CONC_BOTTLE";
String long_name "PB CONC FLAG";
String units "unitless";
}
}
NC_GLOBAL {
String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson";
String acquisition_description
"Samples were collected according to Cutter and Bruland 2012, utilizing a trace
metal clean rosette (GT-C rosette). Samples above 20 m were pumped from a hole
drilled in the ice far away from the ship or from a small boat, using clean
sampling techniques. Dissolved Pb analyses were performed using techniques
described in Lagerstrom et al. (2013). Samples were acidified to pH 1.8 and
left for 2 months prior to analysis. Intercalibration results were submitted
to and approved by the GEOTRACES S & I committee (see Supplmental Documents).";
String awards_0_award_nid "751414";
String awards_0_award_number "OCE-1459270";
String awards_0_data_url "http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1459270";
String awards_0_funder_name "NSF Division of Ocean Sciences";
String awards_0_funding_acronym "NSF OCE";
String awards_0_funding_source_nid "355";
String awards_0_program_manager "Henrietta N Edmonds";
String awards_0_program_manager_nid "51517";
String cdm_data_type "Other";
String comment
"Dissolved Pb
from US GEOTRACES Arctic cruise (GN01)
PI: Robert Rember (University of Alaska, Fairbanks)
Co-PI: Edward Boyle (MIT)
Version date: 12-March-2019";
String Conventions "COARDS, CF-1.6, ACDD-1.3";
String creator_email "info@bco-dmo.org";
String creator_name "BCO-DMO";
String creator_type "institution";
String creator_url "https://www.bco-dmo.org/";
String data_source "extract_data_as_tsv version 2.3 19 Dec 2019";
String date_created "2019-03-12T19:51:09Z";
String date_modified "2020-03-24T16:56:00Z";
String defaultDataQuery "&time<now";
String doi "10.1575/1912/bco-dmo.762056.1";
Float64 Easternmost_Easting 179.5926;
Float64 geospatial_lat_max 89.995;
Float64 geospatial_lat_min 60.165;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max 179.5926;
Float64 geospatial_lon_min -179.8082;
String geospatial_lon_units "degrees_east";
Float64 geospatial_vertical_max 4198.9;
Float64 geospatial_vertical_min 1.0;
String geospatial_vertical_positive "down";
String geospatial_vertical_units "m";
String history
"2024-11-21T08:53:32Z (local files)
2024-11-21T08:53:32Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_762056.html";
String infoUrl "https://www.bco-dmo.org/dataset/762056";
String institution "BCO-DMO";
String instruments_0_acronym "ICP Mass Spec";
String instruments_0_dataset_instrument_description "Dissolved Pb was measured at the University of Alaska, Fairbanks using an ThermoFinnigan Element 2 Inductively Coupled Plasma Mass Spectrometer coupled (ICP-MS) to an Elemental Scientific SeaFAST S2 (syringe based system).";
String instruments_0_dataset_instrument_nid "762091";
String instruments_0_description "An ICP Mass Spec is an instrument that passes nebulized samples into an inductively-coupled gas plasma (8-10000 K) where they are atomized and ionized. Ions of specific mass-to-charge ratios are quantified in a quadrupole mass spectrometer.";
String instruments_0_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/LAB15/";
String instruments_0_instrument_name "Inductively Coupled Plasma Mass Spectrometer";
String instruments_0_instrument_nid "530";
String instruments_0_supplied_name "ThermoFinnigan Element 2 Inductively Coupled Plasma Mass Spectrometer coupled (ICP-MS)";
String instruments_1_acronym "GO-FLO Teflon TM";
String instruments_1_dataset_instrument_nid "762066";
String instruments_1_description "GO-FLO Teflon-lined Trace Metal free sampling bottles are used for collecting water samples for trace metal, nutrient and pigment analysis. The GO-FLO sampling bottle is designed specifically to avoid sample contamination at the surface, internal spring contamination, loss of sample on deck (internal seals), and exchange of water from different depths.";
String instruments_1_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L05/current/30/";
String instruments_1_instrument_name "GO-FLO Teflon Trace Metal Bottle";
String instruments_1_instrument_nid "533";
String instruments_1_supplied_name "trace metal clean rosette (GT-C rosette)";
String keywords "bco, bco-dmo, biological, bottle, btlnbr, castno, chemical, conc, ctddepth, ctdprs, data, dataset, date, dmo, erddap, eventno, expocode, flag, geotrc, GEOTRC_EVENTNO, GEOTRC_SAMPNO, latitude, longitude, management, oceanography, office, PB_CONC_FLAG, PB_D_CONC_BOTTLE, preliminary, sampno, sect, SECT_ID, stnnbr, time, time2";
String license "https://www.bco-dmo.org/dataset/762056/license";
String metadata_source "https://www.bco-dmo.org/api/dataset/762056";
Float64 Northernmost_Northing 89.995;
String param_mapping "{'762056': {'LATITUDE': 'flag - latitude', 'CTDDEPTH': 'flag - depth', 'LONGITUDE': 'flag - longitude'}}";
String parameter_source "https://www.bco-dmo.org/mapserver/dataset/762056/parameters";
String people_0_affiliation "University of Alaska Fairbanks";
String people_0_affiliation_acronym "UAF";
String people_0_person_name "Robert Rember";
String people_0_person_nid "751416";
String people_0_role "Principal Investigator";
String people_0_role_type "originator";
String people_1_affiliation "Massachusetts Institute of Technology";
String people_1_affiliation_acronym "MIT";
String people_1_person_name "Edward A. Boyle";
String people_1_person_nid "50984";
String people_1_role "Co-Principal Investigator";
String people_1_role_type "originator";
String people_2_affiliation "Woods Hole Oceanographic Institution";
String people_2_affiliation_acronym "WHOI BCO-DMO";
String people_2_person_name "Shannon Rauch";
String people_2_person_nid "51498";
String people_2_role "BCO-DMO Data Manager";
String people_2_role_type "related";
String project "U.S. GEOTRACES Arctic,GEOTRACES Arctic Pb";
String projects_0_acronym "U.S. GEOTRACES Arctic";
String projects_0_description
"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.";
String projects_0_end_date "2017-06";
String projects_0_geolocation "Arctic Ocean; Sailing from Dutch Harbor to Dutch Harbor";
String projects_0_name "U.S. Arctic GEOTRACES Study";
String projects_0_project_nid "638812";
String projects_0_start_date "2014-07";
String projects_1_acronym "GEOTRACES Arctic Pb";
String projects_1_description
"NSF Award Abstract:
In this project, investigators participating in the 2015 U.S. GEOTRACES Arctic expedition will measure lead concentrations and isotopic compositions in seawater, snow, and aerosol samples collected 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. Lead is an important substance to measure because it is a toxic trace element, ranked 2nd in the US Agency for Toxic Substances Disease Registry, and can be utilized as a tracer of ocean processes. The study will provide for the training and support of graduate and postdoctoral researchers.
Lead (Pb) is emitted into the atmosphere by high temperature industrial activities and leaded gasoline consumption and is globally dispersed by the atmosphere. High concentrations of Pb have been observed in Arctic ice cores and aerosols, and there are significant concerns about Pb, mercury, and other toxic trace elements in Arctic ecosystems. However, there remain significant questions about how these toxic trace elements and their isotopes currently exist in the Arctic, as well as how they will change in the future Arctic as a result of retreating summer sea ice and extensive drilling, mining, and industrialization. This proposal is aimed at remedying this deficiency in scientific knowledge by measuring Pb and Pb isotopes from seawater profiles, sea ice/seawater interface, snow and aerosols that will be collected during the U.S. GEOTRACES western Arctic transect. Specifically, researchers will gain knowledge on 1) the penetration of anthropogenic lead into the Arctic Ocean, 2) the primary sources of lead to surface waters, 3) the distributions of lead and their relation to scavenging processes and rates, 4) how the exchange with sinking particles contributes to lead?s distribution, and 5) ocean circulation in the Arctic using lead as a tracer. Results from the study will have important implications for human health by increasing understanding of the distribution and abundance of a toxic trace element.";
String projects_1_end_date "2018-08";
String projects_1_geolocation "Arctic";
String projects_1_name "Collaborative Research: GEOTRACES Arctic section: Spatial variability of lead concentrations and isotopic compositions in the western Arctic basins";
String projects_1_project_nid "751410";
String projects_1_start_date "2015-03";
String publisher_name "Biological and Chemical Oceanographic Data Management Office (BCO-DMO)";
String publisher_type "institution";
String sourceUrl "(local files)";
Float64 Southernmost_Northing 60.165;
String standard_name_vocabulary "CF Standard Name Table v55";
String subsetVariables "EXPOCODE,SECT_ID,PB_CONC_FLAG";
String summary "Dissolved Pb concentration data from the US GEOTRACES Arctic Expedition (GN01, HLY1502).";
String title "[GN01 Dissolved Pb - UAF] - Dissolved Pb concentration data from the US GEOTRACES Arctic Expedition (GN01, HLY1502) from August to October 2015 (U.S. Arctic GEOTRACES Study)";
String version "1";
Float64 Westernmost_Easting -179.8082;
String xml_source "osprey2erddap.update_xml() v1.3";
}
}
Data Access Protocol (DAP) and its
selection constraints.
The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.
Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names,
followed by a collection of
constraints (e.g., variable<value),
each preceded by '&' (which is interpreted as "AND").
For details, see the tabledap Documentation.