Accessing BCO-DMO data
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| Dataset Title: | [GP16 CTD - GT-C DownCasts] - GTC CTD down casts along the US GEOTRACES East Pacific Zonal Transect from the R/V Thomas G. Thompson TN303 cruise in the tropical Pacific from Peru to Tahiti during 2013 (U.S. GEOTRACES EPZT project) (U.S. GEOTRACES East Pacific Zonal Transect) 
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| Institution: | BCO-DMO (Dataset ID: bcodmo_dataset_522646) |
| Information: | Summary
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Attributes {
s {
DATASET_ID {
String bcodmo_name "dataset_id";
String description "CTD Dataset Identifier";
String long_name "DATASET ID";
String units "text";
}
EXPOCODE {
String bcodmo_name "Cruise Name";
String description "expedition code assigned by the CCHDO: NODCShipCodeYearMonthDay";
String long_name "EXPOCODE";
String units "text";
}
SECT_ID {
String bcodmo_name "Cruise Name";
String description "cruise section identification number";
String long_name "SECT ID";
String units "text";
}
GEOTRC_EVENTNO {
Int16 _FillValue 32767;
Int16 actual_range 4009, 4467;
String bcodmo_name "event";
String description "GEOTRACES Event Number";
String long_name "GEOTRC EVENTNO";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/EVTAGFL/";
String units "dimensionless";
}
STNNBR {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 36;
String bcodmo_name "station";
String description "Station Number";
String long_name "STNNBR";
String units "dimensionless";
}
CASTNO {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 14;
String bcodmo_name "cast";
String description "Cast Number";
String long_name "CASTNO";
String units "dimensionless";
}
DATE {
Int32 _FillValue 2147483647;
Int32 actual_range 20131028, 20131217;
String bcodmo_name "date";
String description "Station Date (GMT) in the format YYYYMMDD";
String long_name "DATE";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/";
String units "unitless";
}
time2 {
String bcodmo_name "time";
String description "Station Time (GMT)";
String long_name "TIME";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/";
String units "HHMM";
}
time {
String _CoordinateAxisType "Time";
Float64 actual_range 1.38299622e+9, 1.38726738e+9;
String axis "T";
String bcodmo_name "ISO_DateTime_UTC";
String description "Date/Time (ISO formatted)";
String ioos_category "Time";
String long_name "ISO DATE TIME";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/";
String source_name "ISO_DATE_TIME";
String standard_name "time";
String time_origin "01-JAN-1970 00:00:00";
String time_precision "1970-01-01T00:00:00.00Z";
String units "seconds since 1970-01-01T00:00:00Z";
}
latitude {
String _CoordinateAxisType "Lat";
Float64 _FillValue NaN;
Float64 actual_range -16.0006, -10.2502;
String axis "Y";
String bcodmo_name "latitude";
Float64 colorBarMaximum 90.0;
Float64 colorBarMinimum -90.0;
String description "Station Latitude (South is negative)";
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 -152.0004, -77.3761;
String axis "X";
String bcodmo_name "longitude";
Float64 colorBarMaximum 180.0;
Float64 colorBarMinimum -180.0;
String description "Station Longitude (West is negative)";
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";
}
BTMDEPTH {
Int16 _FillValue 32767;
Int16 actual_range 122, 5530;
String bcodmo_name "depth_w";
String description "Multibeam bottom depth of the cast";
String long_name "BTMDEPTH";
String units "meters";
}
INSTRUMENT_ID {
Int16 _FillValue 32767;
Int16 actual_range 888, 888;
String bcodmo_name "instrument";
String description "Instrument Id (from CTD profile data headers)";
String long_name "INSTRUMENT ID";
String units "dimensionless";
}
CTDPRS {
Float64 _FillValue NaN;
Float64 actual_range 1.0, 5623.0;
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 "DBARS";
}
CTDPRS_FLAG_W {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 2, 2;
String bcodmo_name "flag";
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String description "CTD pressure quality flag (see WOCE Hydrographic Program Quality Flags)";
String long_name "CTDPRS FLAG W";
String units "dimensionless";
}
CTDTMP {
Float32 _FillValue NaN;
Float32 actual_range 1.3053, 29.2064;
String bcodmo_name "temperature";
String description "CTD Temperature; ITS-90";
String long_name "CTDTMP";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/TEMPP901/";
String units "degrees celsius";
}
CTDTMP_FLAG_W {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 2, 2;
String bcodmo_name "flag";
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String description "CTD temperature quality flag (see WOCE Hydrographic Program Quality Flags)";
String long_name "CTDTMP FLAG W";
String units "dimensionless";
}
CTDSAL {
Float32 _FillValue NaN;
Float32 actual_range 34.4867, 36.4919;
String bcodmo_name "sal";
String description "CTD Salinity";
String long_name "CTDSAL";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/PSALST01/";
String units "PSS-78";
}
CTDSAL_FLAG_W {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 2, 2;
String bcodmo_name "flag";
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String description "CTD salinity quality flag (see WOCE Hydrographic Program Quality Flags)";
String long_name "CTDSAL FLAG W";
String units "dimensionless";
}
CTDOXY {
Float32 _FillValue NaN;
Float32 actual_range -39.7, 261.6;
String bcodmo_name "dissolved Oxygen";
String description "CTD Oxygen";
String long_name "CTDOXY";
String units "UMOL/KG";
}
CTDOXY_FLAG_W {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 1;
String bcodmo_name "flag";
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String description "CTD oxygen quality flag(see WOCE Hydrographic Program Quality Flags)";
String long_name "CTDOXY FLAG W";
String units "dimensionless";
}
TRANSM {
Float32 _FillValue NaN;
Float32 actual_range 4.0891, 4.8475;
String bcodmo_name "trans_v";
String description "Light Transmission (0-5VDC)";
String long_name "TRANSM";
String units "volts";
}
TRANSM_FLAG_W {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 1;
String bcodmo_name "flag";
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String description "Light Transmission quality flag (see WOCE Hydrographic Program Quality Flags)";
String long_name "TRANSM FLAG W";
String units "dimensionless";
}
FLUORM {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 1.347;
String bcodmo_name "fluorescence";
String description "Fluorescence (0-5VDC)";
String long_name "FLUORM";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/CPHLPM01/";
String units "volts";
}
FLUORM_FLAG_W {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 1;
String bcodmo_name "flag";
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String description "Fluorescence quality flag (see WOCE Hydrographic Program Quality Flags)";
String long_name "FLUORM FLAG W";
String units "dimensionless";
}
TURBDTY {
Float32 _FillValue NaN;
Float32 actual_range 0.0086, 1.4647;
String bcodmo_name "turbid_v";
String description "Turbidity (0-5VDC)";
String long_name "TURBDTY";
String units "volts";
}
TURBDTY_FLAG_W {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 1;
String bcodmo_name "flag";
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String description "Turbidity quality flag (see WOCE Hydrographic Program Quality Flags)";
String long_name "TURBDTY FLAG W";
String units "dimensionless";
}
SMDEPTH {
Float32 _FillValue NaN;
Float32 actual_range 1.0, 5523.2;
String bcodmo_name "depth";
String description "SMDEPTH IS SAUNDERS-MANTYLA DEPTH (INTEGRATED; USES DYNAMIC HEIGHT)";
String long_name "SMDEPTH";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/DEPH/";
String units "METERS";
}
SMDEPTH_FLAG_W {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 2, 2;
String bcodmo_name "flag";
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String description "SMDepth quality flag (see WOCE Hydrographic Program Quality Flags)";
String long_name "SMDEPTH FLAG W";
String units "dimensionless";
}
F_M_DEPTH {
Float32 _FillValue NaN;
Float32 actual_range 1.0, 5518.6;
String bcodmo_name "depth";
String description "FMDEPTH IS FOFONOFF-MILLARD DEPTH (NON-INTEGRATED; ALSO USED BY SBE)";
String long_name "F M DEPTH";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/DEPH/";
String units "METERS";
}
FMDEPTH_FLAG_W {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 2, 2;
String bcodmo_name "flag";
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String description "FMDepth quality flag (see WOCE Hydrographic Program Quality Flags)";
String long_name "FMDEPTH FLAG W";
String units "dimensionless";
}
CTDNOBS {
Int16 _FillValue 32767;
Int16 actual_range 1, 192;
String bcodmo_name "numb_obs";
String description "CTD Number of Observations";
String long_name "CTDNOBS";
String units "dimensionless";
}
CTDETIME {
Float32 _FillValue NaN;
Float32 actual_range 54.0, 9989.5;
String bcodmo_name "time_elapsed";
String description "CTD Elapsed Time";
String long_name "CTDETIME";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/ELTMZZZZ/";
String units "SECONDS";
}
}
NC_GLOBAL {
String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson,.odvTxt";
String acquisition_description
"From the TN303 cruise report:
Two types of rosette/SBE9plus CTD casts (ODF/30L-Niskin and GT-C/12L-GoFlo)
were made at 36 station locations during U.S. GEOTRACES EPZT.
Shipboard CTD data processing was performed automatically at the end of each
deployment using SIO/STS CTD processing software v.5.1.6-1. Raw GT-C CTD data
and bottle trip files, acquired by SBE Seasave V 7.17a on a Windows XP
workstation, were also imported into the Linux processing system, providing a
backup of the raw data.
At the end of the cruise, all GT-C CTD data were updated in the database using
the post-cast Seasave-processed \\\".btl\\\" file 5-second averaged CTD data, in
order to include processed CTD Oxygen values. The 5-second average used
resulted in slightly better agreement between CTD and GoFlo salinity values
than the shorter 3-second average used for the Niskin rosette.";
String awards_0_award_nid "502593";
String awards_0_award_number "OCE-1235248";
String awards_0_data_url "http://www.nsf.gov/awardsearch/showAward?AWD_ID=1235248&HistoricalAwards=false";
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 "Donald L. Rice";
String awards_0_program_manager_nid "51467";
String awards_1_award_nid "502594";
String awards_1_award_number "OCE-1130870";
String awards_1_data_url "http://www.nsf.gov/awardsearch/showAward?AWD_ID=1130870&HistoricalAwards=false";
String awards_1_funder_name "NSF Division of Ocean Sciences";
String awards_1_funding_acronym "NSF OCE";
String awards_1_funding_source_nid "355";
String awards_1_program_manager "Henrietta N Edmonds";
String awards_1_program_manager_nid "51517";
String cdm_data_type "Other";
String comment
"GEOTRACES EPZT GT13 TN303
GT-C CTD DownCasts 20141030ODU
PIs: Moffett, et al
Version: 30 October 2014
SMDEPTH IS SAUNDERS-MANTYLA DEPTH (INTEGRATED; USES DYNAMIC HEIGHT)
FMDEPTH IS FOFONOFF-MILLARD DEPTH (NON-INTEGRATED; ALSO USED BY SBE)";
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 "2014-08-13T13:09:16Z";
String date_modified "2020-04-16T18:48:21Z";
String defaultDataQuery "&time<now";
String doi "10.26008/1912/bco-dmo.522646.1";
Float64 Easternmost_Easting -77.3761;
Float64 geospatial_lat_max -10.2502;
Float64 geospatial_lat_min -16.0006;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -77.3761;
Float64 geospatial_lon_min -152.0004;
String geospatial_lon_units "degrees_east";
String history
"2024-11-23T17:28:05Z (local files)
2024-11-23T17:28:05Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_522646.html";
String infoUrl "https://www.bco-dmo.org/dataset/522646";
String institution "BCO-DMO";
String instruments_0_acronym "CTD SBE 911plus";
String instruments_0_dataset_instrument_nid "557062";
String instruments_0_description "The Sea-Bird SBE 911plus is a type of CTD instrument package for continuous measurement of conductivity, temperature and pressure. The SBE 911plus includes the SBE 9plus Underwater Unit and the SBE 11plus Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9plus and SBE 11plus is called a SBE 911plus. The SBE 9plus uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3plus and SBE 4). The SBE 9plus CTD can be configured with up to eight auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorescence, light (PAR), light transmission, etc.). more information from Sea-Bird Electronics";
String instruments_0_instrument_external_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0058/";
String instruments_0_instrument_name "CTD Sea-Bird SBE 911plus";
String instruments_0_instrument_nid "591";
String keywords "bco, bco-dmo, biological, btmdepth, castno, chemical, ctdetime, ctdnobs, ctdoxy, CTDOXY_FLAG_W, ctdprs, CTDPRS_FLAG_W, ctdsal, CTDSAL_FLAG_W, ctdtmp, CTDTMP_FLAG_W, data, dataset, DATASET_ID, date, depth, dmo, erddap, eventno, expocode, F_M_DEPTH, flag, fluorm, FLUORM_FLAG_W, fmdepth, FMDEPTH_FLAG_W, geotrc, GEOTRC_EVENTNO, instrument, INSTRUMENT_ID, iso, latitude, longitude, management, oceanography, office, preliminary, sect, SECT_ID, smdepth, SMDEPTH_FLAG_W, stnnbr, time, time2, transm, TRANSM_FLAG_W, turbdty, TURBDTY_FLAG_W, w";
String license "https://www.bco-dmo.org/dataset/522646/license";
String metadata_source "https://www.bco-dmo.org/api/dataset/522646";
Float64 Northernmost_Northing -10.2502;
String param_mapping "{'522646': {'LATITUDE': 'flag - latitude', 'LONGITUDE': 'flag - longitude', 'CTDPRS': 'flag - depth', 'ISO_DATE_TIME': 'flag - time'}}";
String parameter_source "https://www.bco-dmo.org/mapserver/dataset/522646/parameters";
String people_0_affiliation "University of Southern California";
String people_0_affiliation_acronym "USC-HIMS";
String people_0_person_name "James W. Moffett";
String people_0_person_nid "50800";
String people_0_role "Lead Principal Investigator";
String people_0_role_type "originator";
String people_1_affiliation "Old Dominion University";
String people_1_affiliation_acronym "ODU";
String people_1_person_name "Gregory Cutter";
String people_1_person_nid "50679";
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";
String people_2_person_name "Christopher R. German";
String people_2_person_nid "51700";
String people_2_role "Co-Principal Investigator";
String people_2_role_type "originator";
String people_3_affiliation "University of Southern California";
String people_3_affiliation_acronym "USC-HIMS";
String people_3_person_name "James W. Moffett";
String people_3_person_nid "50800";
String people_3_role "Contact";
String people_3_role_type "related";
String people_4_affiliation "Woods Hole Oceanographic Institution";
String people_4_affiliation_acronym "WHOI BCO-DMO";
String people_4_person_name "Stephen R. Gegg";
String people_4_person_nid "50910";
String people_4_role "BCO-DMO Data Manager";
String people_4_role_type "related";
String project "U.S. GEOTRACES EPZT";
String projects_0_acronym "U.S. GEOTRACES EPZT";
String projects_0_description
"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]";
String projects_0_end_date "2015-06";
String projects_0_geolocation "Eastern Tropical Pacific - Transect from Peru to Tahiti";
String projects_0_name "U.S. GEOTRACES East Pacific Zonal Transect";
String projects_0_project_nid "499723";
String projects_0_project_website "https://www.geotraces.org/";
String projects_0_start_date "2012-06";
String publisher_name "Biological and Chemical Oceanographic Data Management Office (BCO-DMO)";
String publisher_type "institution";
String sourceUrl "(local files)";
Float64 Southernmost_Northing -16.0006;
String standard_name_vocabulary "CF Standard Name Table v55";
String subsetVariables "EXPOCODE,SECT_ID,INSTRUMENT_ID,CTDPRS_FLAG_W,CTDTMP_FLAG_W,CTDSAL_FLAG_W,CTDOXY_FLAG_W,TRANSM_FLAG_W,FLUORM_FLAG_W,TURBDTY_FLAG_W,SMDEPTH_FLAG_W,FMDEPTH_FLAG_W";
String summary "GTC CTD down casts along the US GEOTRACES East Pacific Zonal Transect from the R/V Thomas G. Thompson TN303 cruise in the tropical Pacific from Peru to Tahiti during 2013.";
String time_coverage_end "2013-12-17T08:03:00.00Z";
String time_coverage_start "2013-10-28T21:37:00.00Z";
String title "[GP16 CTD - GT-C DownCasts] - GTC CTD down casts along the US GEOTRACES East Pacific Zonal Transect from the R/V Thomas G. Thompson TN303 cruise in the tropical Pacific from Peru to Tahiti during 2013 (U.S. GEOTRACES EPZT project) (U.S. GEOTRACES East Pacific Zonal Transect)";
String version "1";
Float64 Westernmost_Easting -152.0004;
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.