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Dataset Title:	BASE_PIGMENTS_CTD
Institution:	CNRS-INSU (Dataset ID: BASE_PIGMENTS_CTD_a951_ad4f_1318)
Range:	longitude = -178.5105 to 178.6062°E, latitude = -66.9598 to 79.2021°N, depth = -10.318 to 5501.0m, time = 1991-04-27T12:49:09Z to 2023-04-05T08:45:09Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Data Access Form

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  Investigator {
    String ioos_category "Unknown";
    String long_name "Investigator";
  }
  Zone {
    String ioos_category "Unknown";
    String long_name "Zone";
  }
  Project {
    String ioos_category "Identifier";
    String long_name "Project";
  }
  Cruise {
    String ioos_category "Unknown";
    String long_name "Cruise";
  }
  Leg {
    String ioos_category "Unknown";
    String long_name "Leg";
  }
  Ship_name {
    String ioos_category "Unknown";
    String long_name "Ship";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 6.72756549e+8, 1.680684309e+9;
    String axis "T";
    String calendar "YYYY-MM-DDThh:mm:ssZ";
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Time";
    String long_name "Date and time (UT in ISO8601 format to known precision)";
    String sdn_P02_urn "SDN:P02::AYMD";
    String sdn_parameter_urn "SDN:P01::DTUT8601";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01T00:00:00Z";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 _FillValue NaN;
    Float32 actual_range -66.9598, 79.2021;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String sdn_P02_urn "SDN:P02::ALAT";
    String sdn_parameter_urn "SDN:P01::ALATZZ01";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 _FillValue NaN;
    Float32 actual_range -178.5105, 178.6062;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String sdn_P02_urn "SDN:P02::ALAT";
    String sdn_parameter_urn "SDN:P01::ALONZZ01";
    String standard_name "longitude";
    String units "degrees_east";
  }
  Station {
    String ioos_category "Identifier";
    String long_name "Station";
  }
  Site {
    String ioos_category "Unknown";
    String long_name "Site";
  }
  CTD {
    String ioos_category "Unknown";
    String long_name "CTD";
  }
  ID {
    String ioos_category "Identifier";
    String long_name "Unique ID for each CTD's profile";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 _FillValue NaN;
    Float32 actual_range -10.318, 5501.0;
    String axis "Z";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String ioos_category "Location";
    String long_name "Bathymetric depth at profile measurement site";
    String positive "down";
    String sdn_P02_urn "SDN:P02::MBAN";
    String sdn_parameter_urn "SDN:P01::MBANZZZZ";
    String standard_name "depth";
    String units "m";
  }
  Temperature {
    Float32 _FillValue NaN;
    Float32 actual_range -1.8286, 572.1538;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Temperature";
    String long_name "Temperature (ITS-90) of the water body";
    String sdn_P02_urn "SDN:P02::TEMP";
    String sdn_parameter_urn "SDN:P01::TEMPP901";
    String standard_name "sea_water_temperature";
    String units "degree_C";
  }
  Salinity {
    Float32 _FillValue NaN;
    Float32 actual_range -9.99e-29, 1057.408;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String ioos_category "Salinity";
    String long_name "Practical salinity of the water body";
    String sdn_P02_urn "SDN:P02::PSAL";
    String sdn_parameter_urn "SDN:P01::PSLTZZ01";
    String standard_name "sea_water_practical_salinity";
    String units "PSU";
  }
  Fluorescence_sensor1 {
    Float32 _FillValue NaN;
    Float32 actual_range -0.6839, 28.965;
    Float64 colorBarMaximum 30.0;
    Float64 colorBarMinimum 0.03;
    String colorBarScale "Log";
    String comment "First sensor";
    String ioos_category "Ocean Color";
    String long_name "Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate >unknown phase] by in-situ chlorophyll fluorometer";
    String sdn_P02_urn "SDN:P02::CPWC";
    String sdn_parameter_urn "SDN:P01::CPHLPR01";
    String standard_name "concentration_of_chlorophyll_in_sea_water";
    String units "ug/l";
  }
  Fluorescence_sensor2 {
    Float32 _FillValue NaN;
    Float32 actual_range -0.7519, 4.3289;
    Float64 colorBarMaximum 30.0;
    Float64 colorBarMinimum 0.03;
    String colorBarScale "Log";
    String comment "Second sensor";
    String ioos_category "Ocean Color";
    String long_name "Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate >unknown phase] by in-situ chlorophyll fluorometer";
    String sdn_P02_urn "SDN:P02::CPWC";
    String sdn_parameter_urn "SDN:P01::CPHLPR01";
    String standard_name "concentration_of_chlorophyll_in_sea_water";
    String units "ug/l";
  }
  Fluorescence_sensor1_RU {
    Float32 _FillValue NaN;
    Float32 actual_range -38.4206, 2206.699;
    String comment "First sensor";
    String ioos_category "Optical Properties";
    String long_name "Fluorescence of the water body";
    String sdn_P02_urn "SDN:P02::FVLT";
    String sdn_parameter_urn "SDN:P01::FLUOZZZZ";
    String units "Relative Units";
  }
  Fluorescence_sensor2_RU {
    Float32 _FillValue NaN;
    Float32 actual_range -0.0432, 1.1412;
    String comment "Second sensor";
    String ioos_category "Optical Properties";
    String long_name "Fluorescence of the water body";
    String sdn_P02_urn "SDN:P02::FVLT";
    String sdn_parameter_urn "SDN:P01::FLUOZZZZ";
    String units "Relative Units";
  }
  Fluorometer_1 {
    String comment "First sensor";
    String ioos_category "Optical Properties";
    String long_name "Type of Fluorometer";
  }
  Fluorometer_2 {
    String comment "Second sensor";
    String ioos_category "Optical Properties";
    String long_name "Type of Fluorometer";
  }
 }
  NC_GLOBAL {
    String _NCProperties "version=2,netcdf=4.8.1,hdf5=1.12.1";
    String cdm_data_type "Point";
    String Conventions "SeaDataNet_1.0, CF-1.6, COARDS, ACDD-1.3";
    String creator_name "CNRS-INSU";
    String creator_type "institution";
    String creator_url "http://www.obs-vlfr.fr/proof/";
    Float64 Easternmost_Easting 178.6062;
    String featureType "Point";
    Float64 geospatial_lat_max 79.2021;
    Float64 geospatial_lat_min -66.9598;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 178.6062;
    Float64 geospatial_lon_min -178.5105;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 5501.0;
    Float64 geospatial_vertical_min -10.318;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"Created: Tue Apr 22 10:41:37 2025
2025-10-14T22:13:12Z (local files)
2025-10-14T22:13:12Z https://erddap.imev-mer.fr/tabledap/BASE_PIGMENTS_CTD_a951_ad4f_1318.das";
    String infoURL "http://www.obs-vlfr.fr/proof/";
    String infoUrl "https://vocab.nerc.ac.uk/collection/";
    String institution "CNRS-INSU";
    String keywords "479-61-8, base, body, cas, chemistry, chl, chl-a, chlorophyll, chlorophyll-a, cnrs, cnrs-insu, color, concentration, concentration_of_chlorophyll_in_sea_water, conductivity, cruise, ctd, data, density, depth, each, earth, Earth Science > Oceans > Ocean Chemistry > Chlorophyll, Earth Science > Oceans > Ocean Temperature > Water Temperature, Earth Science > Oceans > Salinity/Density > Salinity, Fluorescence_sensor1, Fluorescence_sensor1_RU, Fluorescence_sensor2, Fluorescence_sensor2_RU, fluorometer, Fluorometer_1, Fluorometer_2, identifier, in-situ, insu, investigator, its, its-90, latitude, leg, longitude, ocean, ocean color, oceans, optical, optical properties, particulate, per, phase, pigments, practical, profile, project, properties, salinity, science, sea, sea_water_practical_salinity, sea_water_temperature, seawater, ship, Ship_name, site, situ, sonde, station, statistics, temperature, time, type, unique, unit, volume, water, zone";
    String keywords_vocabulary "GCMD Science Keywords";
    String license 
"The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.";
    Float64 Northernmost_Northing 79.2021;
    String references "https://vocab.nerc.ac.uk/collection/";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing -66.9598;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String subsetVariables "Investigator, Zone, Project, Cruise, Leg, Ship_name, ID, Fluorometer_1, Fluorometer_2";
    String summary "Phytoplankton pigment data originating from the LOV analysed by the SAPIGH (Service d Analyse de PIGments par HPLC (High Performance Liquid Chromatography)";
    String time_coverage_end "2023-04-05T08:45:09Z";
    String time_coverage_start "1991-04-27T12:49:09Z";
    String title "BASE_PIGMENTS_CTD";
    Float64 Westernmost_Easting -178.5105;
  }
}

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.

(easy) You can get data by using the dataset's Data Access Form or Subset form. They make the URL for you.
(easy) You can make a graph or map by using the dataset's Make A Graph form. It makes the URL for you.
(not hard) You can bypass the forms and get the data or make a graph or map by generating the URL by hand or with a computer program or script.

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.

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