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Dataset Title:  Cast events summary table associated with 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)
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Institution:  BCO-DMO   (Dataset ID: bcodmo_dataset_522846)
Range: longitude = -152.079 to -77.37617°E, latitude = -17.57333 to -10.224°N, time = 2013-10-28T18:54:00.00Z to 2013-12-20T07:44:00.00Z
Information:  Summary ? | License ? | ISO 19115 | Metadata | Background (external link) | Subset | Data Access Form | Files
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Things You Can Do With Your Graphs

Well, you can do anything you want with your graphs, of course. But some things you might not have considered are:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
    String bcodmo_name "Cruise Name";
    String description "expedition code assigned by the CCHDO: NODCShipCodeYearMonthDay";
    String long_name "EXPOCODE";
    String units "text";
    String bcodmo_name "Cruise Name";
    String description "cruise section identification number";
    String long_name "SECT ID";
    String units "text";
    Int16 _FillValue 32767;
    Int16 actual_range 4009, 4476;
    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";
    Int16 _FillValue 32767;
    Int16 actual_range -999, 37;
    String bcodmo_name "station";
    String description "station number";
    String long_name "STNNBR";
    String units "dimensionless";
    Int16 _FillValue 32767;
    Int16 actual_range -999, 25;
    String bcodmo_name "cast";
    String description "cast number";
    String long_name "CASTNO";
    String units "dimensionless";
    String bcodmo_name "cast_type";
    String description "cast type";
    String long_name "CAST TYPE";
    String units "text";
  DATE {
    Int32 _FillValue 2147483647;
    Int32 actual_range -215400519, 323490906;
    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) in the format HHMM";
    String long_name "TIME";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/";
    String units "unitless";
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.38298644e+9, 1.38752544e+9;
    String axis "T";
    String bcodmo_name "ISO_DateTime_UTC";
    String description "Date/Time (ISO formatted) in the format YYYY-MM-DDTHH:MM:SS[.xx]Z";
    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";
    String bcodmo_name "event code";
    String description "event code (Begin; Bottom; End)";
    String long_name "EVENT CODE";
    String units "text";
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue NaN;
    Float64 actual_range -17.57333, -10.224;
    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 -152.079, -77.37617;
    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";
  NAV {
    String bcodmo_name "nav_source";
    String description "nav source";
    String long_name "NAV";
    String units "text";
    Int16 _FillValue 32767;
    Int16 actual_range -999, 6409;
    String bcodmo_name "depth_w";
    String description "corrected depth (CTD depth + height above bottom)";
    String long_name "CORR DEPTH";
    String units "meters";
    Int16 _FillValue 32767;
    Int16 actual_range -9, 327;
    String bcodmo_name "altitude";
    String description "height above bottom";
    String long_name "HT ABOVE BOTTOM";
    String units "meters";
    Int16 _FillValue 32767;
    Int16 actual_range -9, 5555;
    String bcodmo_name "wire_out";
    String description "wire out";
    String long_name "WIRE OUT";
    String units "meters";
    Int16 _FillValue 32767;
    Int16 actual_range -9, 5624;
    String bcodmo_name "pressure maximum";
    String description "max pressure";
    String long_name "MAX PRESS";
    String units "dbar";
    Byte _FillValue 127;
    Byte actual_range 0, 24;
    String bcodmo_name "bots";
    String description "number of bottles";
    String long_name "NO BOTTLES";
    String units "dimensionless";
    String bcodmo_name "sample_type";
    String description "parameters measured";
    String long_name "PARAMETERS";
    String units "text";
    String bcodmo_name "comment";
    String description "comments";
    String long_name "COMMENTS";
    String units "text";
    String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson,.odvTxt";
    String acquisition_description "Contributed by Oceanographic Data Facility (ODF) staff";
    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 
  Cast Events Summary Table													 
  PIs: Moffett, et al 
  Version: 30 October 2014";
    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 dataset_current_state "Final and no updates";
    String date_created "2014-08-13T15:49:52Z";
    String date_modified "2020-04-16T14:53:20Z";
    String defaultDataQuery "&amp;time&lt;now";
    String doi "10.26008/1912/bco-dmo.522846.1";
    Float64 Easternmost_Easting -77.37617;
    Float64 geospatial_lat_max -10.224;
    Float64 geospatial_lat_min -17.57333;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -77.37617;
    Float64 geospatial_lon_min -152.079;
    String geospatial_lon_units "degrees_east";
    String history 
"2024-05-22T14:51:36Z (local files)
2024-05-22T14:51:36Z https://erddap.bco-dmo.org/tabledap/bcodmo_dataset_522846.das";
    String infoUrl "https://www.bco-dmo.org/dataset/522846";
    String institution "BCO-DMO";
    String keywords "above, bco, bco-dmo, biological, bottles, bottom, cast, CAST_TYPE, castno, chemical, code, comments, corr, CORR_DEPTH, data, dataset, date, depth, dmo, erddap, event, EVENT_CODE, eventno, expocode, geotrc, GEOTRC_EVENTNO, HT_ABOVE_BOTTOM, iso, latitude, longitude, management, max, MAX_PRESS, nav, NO_BOTTLES, oceanography, office, out, parameters, preliminary, press, sect, SECT_ID, stnnbr, time, time2, type, wire, WIRE_OUT";
    String license "https://www.bco-dmo.org/dataset/522846/license";
    String metadata_source "https://www.bco-dmo.org/api/dataset/522846";
    Float64 Northernmost_Northing -10.224;
    String param_mapping "{'522846': {'LATITUDE': 'flag - latitude', 'LONGITUDE': 'flag - longitude', 'ISO_DATE_TIME': 'flag - time'}}";
    String parameter_source "https://www.bco-dmo.org/mapserver/dataset/522846/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 "http://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 -17.57333;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String subsetVariables "EXPOCODE,NAV";
    String summary "Cast events summary table associated with 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 "2013-12-20T07:44:00.00Z";
    String time_coverage_start "2013-10-28T18:54:00.00Z";
    String title "Cast events summary table associated with 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)";
    String version "1";
    Float64 Westernmost_Easting -152.079;
    String xml_source "osprey2erddap.update_xml() v1.5";


Using tabledap to Request Data and Graphs from Tabular Datasets

tabledap lets you request a data subset, a graph, or a map from a tabular dataset (for example, buoy data), via a specially formed URL. tabledap uses the OPeNDAP (external link) Data Access Protocol (DAP) (external link) and its selection constraints (external link).

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
For example,
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.

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