Accessing BCO-DMO data
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| Dataset Title: | [GT10 - Cruise Event Log] - Scientific sampling event log associated with the US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N. Atlantic during 2010 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect) 
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| Institution: | BCO-DMO (Dataset ID: bcodmo_dataset_3485) |
| Information: | Summary
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| ISO 19115
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Attributes {
s {
event {
Int16 _FillValue 32767;
Int16 actual_range 2001, 2225;
String bcodmo_name "event";
String description "event number";
String long_name "Event";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/EVTAGFL/";
String units "integer";
}
location {
String bcodmo_name "Site_Desig";
String description "location descriptor (typically station id)";
String long_name "Location";
String units "text";
}
event_description {
String bcodmo_name "ev_type";
String description
"Code\t\tEvent descripton
nd\t\tunknown/not entered
GT-C\t\tGEOTRACES carousel
30-ODF\t\t30L Niskin Rosette
GeoF\t\tGeo's fish
RaPUW\t\tRadium UW pump
MITv2\t\tMIT-vane
UAFv\t\tUAF-vane
KnoR\t\tKnorr rosette
MastUp\t\tNASA solar reference mast UP
MastDown\tNASA solar reference mast DOWN
McL-Ros\t\tMcLane pump rosette
McL-Prof\tMcLane pump profile
Aeros\t\tAerosol sampler
AOP\t\tApparent Optical Properties cast
NASAsurf\tNASA surface pump water sample
NEMO\t\tNEMO Float Deployment
Ra/Th/Pig\tRa/Th/Pigment Niskin Cast";
String long_name "Event Description";
String units "text";
}
GEOTRACES_ID_Num_Range {
String bcodmo_name "sample";
String description "GEOTRACES ID Number and Range";
String long_name "GEOTRACES ID Num Range";
String nerc_identifier "https://vocab.nerc.ac.uk/collection/P02/current/ACYC/";
String units "text";
}
date_start {
Int32 _FillValue 2147483647;
Int32 actual_range 20101015, 20101103;
String bcodmo_name "date_begin";
String description "Start date (GMT) in the format YYYYMMDD";
String long_name "Date Start";
String units "unitless";
}
time_start {
String bcodmo_name "time_start";
String description "Start time (GMT)";
String long_name "Time Start";
String units "HHMM";
}
date_end {
Int32 _FillValue 2147483647;
Int32 actual_range 18991230, 20101103;
String bcodmo_name "date_end";
String description "End date (GMT) in the format YYYYMMDD";
String long_name "Date End";
String units "unitless";
}
time_end {
String bcodmo_name "time_end";
String description "End time (GMT)";
String long_name "Time End";
String units "HHMM";
}
latitude {
String _CoordinateAxisType "Lat";
Float64 _FillValue NaN;
Float64 actual_range 17.3367, 38.33641;
String axis "Y";
String bcodmo_name "latitude";
Float64 colorBarMaximum 90.0;
Float64 colorBarMinimum -90.0;
String description "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 -24.6116, -9.66;
String axis "X";
String bcodmo_name "longitude";
Float64 colorBarMaximum 180.0;
Float64 colorBarMinimum -180.0;
String description "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";
}
depth {
String _CoordinateAxisType "Height";
String _CoordinateZisPositive "down";
Float64 _FillValue NaN;
Float64 actual_range 0.0, 1500.0;
String axis "Z";
String bcodmo_name "depth_min";
Float64 colorBarMaximum 8000.0;
Float64 colorBarMinimum -8000.0;
String colorBarPalette "TopographyDepth";
String description "Minimum depth";
String ioos_category "Location";
String long_name "Depth";
String positive "down";
String standard_name "depth";
String units "m";
}
depth_max {
Float32 _FillValue NaN;
Float32 actual_range 1.0, 4900.0;
String bcodmo_name "depth_max";
Float64 colorBarMaximum 8000.0;
Float64 colorBarMinimum -8000.0;
String colorBarPalette "TopographyDepth";
String description "Maximum depth";
String long_name "Depth";
String standard_name "depth";
String units "meters";
}
samples_taken {
String bcodmo_name "sample_descrip";
String description
"Code\t\tSamples Taken
nd\t\tunknown/not recorded
diss\t\tdissolved samples
diss+part\tdissolved and particulate samples
unfilt\t\tunfiltered seawater
filter\t\tfilter for particulates
none\t\tnone";
String long_name "Samples Taken";
String units "text";
}
comment {
String bcodmo_name "comment";
String description "Event comment";
String long_name "Comment";
String units "text";
}
}
NC_GLOBAL {
String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson";
String acquisition_description
"Generated aboard vessel by science party.
Event Description Codes:
nd = unknown/not entered
GT-C = GEOTRACES carousel
30-ODF = 30L Niskin Rosette
GeoF = Geos fish
RaPUW = Radium UW pump
MITv2 = MIT-vane
UAFv = UAF-vane
KnoR = Knorr rosette
MastUp = NASA solar reference mast UP
MastDown = NASA solar reference mast DOWN
McL-Ros = McLane pump rosette
McL-Prof = McLane pump profile
Aeros = Aerosol sampler
AOP = Apparent Optical Properties cast
NASAsurf = NASA surface pump water sample
NEMO = NEMO Float Deployment
Ra/Th/Pig = Ra/Th/Pigment Niskin Cast
Codes for Samples Taken:
nd = unknown/not recorded
diss = dissolved samples
diss+part = dissolved and particulate samples
unfilt = unfiltered seawater
filter = filter for particulates
none = none";
String awards_0_award_nid "54753";
String awards_0_award_number "OCE-0926423";
String awards_0_data_url "http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=0926423";
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 "54938";
String awards_1_award_number "OCE-0926092";
String awards_1_data_url "http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=0926092";
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 "Donald L. Rice";
String awards_1_program_manager_nid "51467";
String cdm_data_type "Other";
String comment
"Version: 25 July 2011
PIs: Jenkins, et al
KN199-04 Scientific Sampling Event Log
14 Feb 2013: added missing GEOTRACES sample # for event 2215.
22 Feb 2013: added missing station number for event # 2083
(stn 5 according to comment).";
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 "2011-06-01T12:26:16Z";
String date_modified "2020-03-25T17:48:58Z";
String defaultDataQuery "&time<now";
String doi "10.26008/1912/bco-dmo.3485.3";
Float64 Easternmost_Easting -9.66;
Float64 geospatial_lat_max 38.33641;
Float64 geospatial_lat_min 17.3367;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -9.66;
Float64 geospatial_lon_min -24.6116;
String geospatial_lon_units "degrees_east";
Float64 geospatial_vertical_max 1500.0;
Float64 geospatial_vertical_min 0.0;
String geospatial_vertical_positive "down";
String geospatial_vertical_units "m";
String history
"2024-11-21T08:37:17Z (local files)
2024-11-21T08:37:17Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_3485.html";
String infoUrl "https://www.bco-dmo.org/dataset/3485";
String institution "BCO-DMO";
String keywords "bco, bco-dmo, biological, chemical, comment, data, dataset, date, date_end, date_start, depth, depth_max, depth_min, description, dmo, end, erddap, event, event_description, geotraces, GEOTRACES_ID_Num_Range, latitude, longitude, management, num, oceanography, office, preliminary, range, samples, samples_taken, start, taken, time, time_end, time_start";
String license "https://www.bco-dmo.org/dataset/3485/license";
String metadata_source "https://www.bco-dmo.org/api/dataset/3485";
Float64 Northernmost_Northing 38.33641;
String param_mapping "{'3485': {'lat': 'flag - latitude', 'lon': 'flag - longitude', 'depth_min': 'flag - depth'}}";
String parameter_source "https://www.bco-dmo.org/mapserver/dataset/3485/parameters";
String people_0_affiliation "Woods Hole Oceanographic Institution";
String people_0_affiliation_acronym "WHOI";
String people_0_person_name "William J. Jenkins";
String people_0_person_nid "50745";
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 "Old Dominion University";
String people_2_affiliation_acronym "ODU";
String people_2_person_name "Gregory Cutter";
String people_2_person_nid "50679";
String people_2_role "Co-Principal Investigator";
String people_2_role_type "originator";
String people_3_affiliation "Woods Hole Oceanographic Institution";
String people_3_affiliation_acronym "WHOI";
String people_3_person_name "William J. Jenkins";
String people_3_person_nid "50745";
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 NAT";
String projects_0_acronym "U.S. GEOTRACES NAT";
String projects_0_description
"Much of this text appeared in an article published in OCB News, October 2008, by the OCB Project Office.
The first U.S. GEOTRACES Atlantic Section will be specifically centered around a sampling cruise to be carried out in the North Atlantic in 2010. Ed Boyle (MIT) and Bill Jenkins (WHOI) organized a three-day planning workshop that was held September 22-24, 2008 at the Woods Hole Oceanographic Institution. The main goal of the workshop, sponsored by the National Science Foundation and the U.S. GEOTRACES Scientific Steering Committee, was to design the implementation plan for the first U.S. GEOTRACES Atlantic Section. The primary cruise design motivation was to improve knowledge of the sources, sinks and internal cycling of Trace Elements and their Isotopes (TEIs) by studying their distributions along a section in the North Atlantic (Figure 1). The North Atlantic has the full suite of processes that affect TEIs, including strong meridional advection, boundary scavenging and source effects, aeolian deposition, and the salty Mediterranean Outflow. The North Atlantic is particularly important as it lies at the \"origin\" of the global Meridional Overturning Circulation.
It is well understood that many trace metals play important roles in biogeochemical processes and the carbon cycle, yet very little is known about their large-scale distributions and the regional scale processes that affect them. Recent advances in sampling and analytical techniques, along with advances in our understanding of their roles in enzymatic and catalytic processes in the open ocean provide a natural opportunity to make substantial advances in our understanding of these important elements. Moreover, we are motivated by the prospect of global change and the need to understand the present and future workings of the ocean's biogeochemistry. The GEOTRACES strategy is to measure a broad suite of TEIs to constrain the critical biogeochemical processes that influence their distributions. In addition to these \"exotic\" substances, more traditional properties, including macronutrients (at micromolar and nanomolar levels), CTD, bio-optical parameters, and carbon system characteristics will be measured. The cruise starts at Line W, a repeat hydrographic section southeast of Cape Cod, extends to Bermuda and subsequently through the North Atlantic oligotrophic subtropical gyre, then transects into the African coast in the northern limb of the coastal upwelling region. From there, the cruise goes northward into the Mediterranean outflow. The station locations shown on the map are for the \"fulldepth TEI\" stations, and constitute approximately half of the stations to be ultimately occupied.
Figure 1. The proposed 2010 Atlantic GEOTRACES cruise track plotted on dissolved oxygen at 400 m depth. Data from the World Ocean Atlas (Levitus et al., 2005) were plotted using Ocean Data View (courtesy Reiner Schlitzer). [click on the image to view a larger version]
Hydrography, CTD and nutrient measurements will be supported by the Ocean Data Facility (J. Swift) at Scripps Institution of Oceanography and funded through NSF Facilities. They will be providing an additional CTD rosette system along with nephelometer and LADCP. A trace metal clean Go-Flo Rosette and winch will be provided by the group at Old Dominion University (G. Cutter) along with a towed underway pumping system.
The North Atlantic Transect cruise began in 2010 with KN199 leg 4 (station sampling) and leg 5 (underway sampling only) (Figure 2).
KN199-04 Cruise Report (PDF)
Figure 2. The red line shows the cruise track for the first leg of the US Geotraces North Atlantic Transect on the R/V Knorr in October 2010. The rest of the stations (beginning with 13) will be completed in October-December 2011 on the R/V Knorr (courtesy of Bill Jenkins, Chief Scientist, GNAT first leg). [click on the image to view a larger version]
The section completion effort resumed again in November 2011 with KN204-01A,B (Figure 3).
KN204-01A,B Cruise Report (PDF)
Figure 3. Station locations occupied on the US Geotraces North Atlantic Transect on the R/V Knorr in November 2011. [click on the image to view a larger version]
Data from the North Atlantic Transect cruises are available under the Datasets heading below, and consensus values for the SAFe and North Atlantic GEOTRACES Reference Seawater Samples are available from the GEOTRACES Program Office: Standards and Reference Materials
ADCP data are available from the Currents ADCP group at the University of Hawaii at the links below:KN199-04 (leg 1 of 2010 cruise; Lisbon to Cape Verde)KN199-05 (leg 2 of 2010 cruise; Cape Verde to Charleston, NC)KN204-01A (part 1 of 2011 cruise; Woods Hole, MA to Bermuda)KN204-01B (part 2 of 2011 cruise; Bermuda to Cape Verde)";
String projects_0_end_date "2013-08";
String projects_0_geolocation "Subtropical western and eastern North Atlantic Ocean";
String projects_0_name "U.S. GEOTRACES North Atlantic Transect";
String projects_0_project_nid "2066";
String projects_0_project_website "https://www.geotraces.org/";
String projects_0_start_date "2010-10";
String publisher_name "Biological and Chemical Oceanographic Data Management Office (BCO-DMO)";
String publisher_type "institution";
String sourceUrl "(local files)";
Float64 Southernmost_Northing 17.3367;
String standard_name_vocabulary "CF Standard Name Table v55";
String summary "Scientific sampling event log associated with the US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N. Atlantic during 2010 (U.S. GEOTRACES NAT project).";
String title "[GT10 - Cruise Event Log] - Scientific sampling event log associated with the US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N. Atlantic during 2010 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)";
String version "3";
Float64 Westernmost_Easting -24.6116;
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.