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Dataset Title:  CTD - TReX mission - Estuary and Gulf of St. Lawrence | CTD - mission TReX -
Estuaire et golfe du St-Laurent
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Institution:  Institut des sciences de la mer de Rimouski   (Dataset ID: uqarIsmerCtdTrex)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Files | Make a graph
 
Variable ?   Optional
Constraint #1 ?
Optional
Constraint #2 ?
   Minimum ?
   or a List of Values ?
   Maximum ?
 
 time (UTC) ?          2021-10-23T01:07:41Z    2021-10-29T06:35:30Z
  < slider >
 latitude (degrees_north) ?          47.2667    50.084
  < slider >
 longitude (degrees_east) ?          -67.273    -58.7672
  < slider >
 station (Station Identifier, unitless) ?      
   - +  ?
 PRES (pressure, dbar) ?          1.0    514.0
 TE90 (temperature, degree_C) ?          0.787    12.502
 FLOR (fluorescence, mg m-3) ?          0.017    3.39
 pH (pH units) ?          7.913    8.52
 TRAN (light transmission, percent) ?          87.12    99.94
 PSAR (ueinsteins s-1 m-2) ?          0.0    347.0
 PSAL (practical salinity, PSU) ?          29.92    34.992
 OXYM (dissolved oxygen, uM) ?          37.686    329.374
 SVEL (Sound Velocity, m s-1) ?          1449.95    1494.36
 SIGM (density, kg m-3) ?          22.949    29.884
 SPVA (Specific Volume Anomaly, m3/kg) ?          61.51    491.271
 VAIS (Brunt-Vaisala Frequency N2, s-2) ?          -1.81E-4    0.00693
 SIGT (sigma-T, kg m-3) ?          22.94    27.529
 POTM (potential temperature, degree_C) ?          0.785    12.502
 SIGP (Sigma-Theta, kg m-3) ?          22.94    27.535
 FRET (freezing temperature, degree_C) ?          -2.31    -1.63
 ASAL (absolute salinity, g kg-1) ?          30.062    35.16
 CONT (degree_C) ?          0.798    12.571
 D_CT (kg m-3) ?          22.953    29.887
 D0CT (kg m-3) ?          22.944    27.538
 id (Original filename, unitless) ?          "2119_001"    "2119_033"
 
Server-side Functions ?
 distinct() ?
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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.634951261e+9, 1.63548933e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 47.2667, 50.084;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -67.273, -58.7672;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  station {
    String long_name "Station Identifier";
    String units "unitless";
  }
  PRES {
    String _CoordinateAxisType "Height";
    Float32 actual_range 1.0, 514.0;
    String axis "Z";
    String long_name "pressure";
    String standard_name "sea_water_pressure";
    String units "dbar";
  }
  TE90 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.787, 12.502;
    String long_name "temperature";
    String standard_name "sea_water_temperature";
    String units "degree_C";
  }
  FLOR {
    Float32 _FillValue NaN;
    Float32 actual_range 0.017, 3.39;
    String long_name "fluorescence";
    String standard_name "mass_concentration_of_chlorophyll_in_sea_water";
    String units "mg m-3";
  }
  pH {
    Float32 _FillValue NaN;
    Float32 actual_range 7.913, 8.52;
    String long_name "pH";
    String units "pH units";
  }
  TRAN {
    Float32 actual_range 87.12, 99.94;
    String long_name "light transmission";
    String units "percent";
  }
  PSAR {
    Float32 actual_range 0.0, 347.0;
    String long_name "Photosynthetic Active Radiation";
    String units "ueinsteins s-1 m-2";
  }
  PSAL {
    Float32 _FillValue NaN;
    Float32 actual_range 29.92, 34.992;
    String long_name "practical salinity";
    String standard_name "sea_water_practical_salinity";
    String units "PSU";
  }
  OXYM {
    Float32 actual_range 37.686, 329.374;
    String long_name "dissolved oxygen";
    String standard_name "mole_concentration_of_dissolved_molecular_oxygen_in_sea_water";
    String units "uM";
  }
  SVEL {
    Float32 _FillValue NaN;
    Float32 actual_range 1449.95, 1494.36;
    String long_name "Sound Velocity";
    String standard_name "speed_of_sound_in_sea_water";
    String units "m s-1";
  }
  SIGM {
    Float32 _FillValue NaN;
    Float32 actual_range 22.949, 29.884;
    String long_name "density";
    String standard_name "sea_water_density";
    String units "kg m-3";
  }
  SPVA {
    Float32 _FillValue NaN;
    Float32 actual_range 61.51, 491.271;
    String long_name "Specific Volume Anomaly";
    String units "m3/kg";
  }
  VAIS {
    Float32 _FillValue NaN;
    Float32 actual_range -1.81e-4, 0.00693;
    String long_name "Brunt-Vaisala Frequency N2";
    String units "s-2";
  }
  SIGT {
    Float32 _FillValue NaN;
    Float32 actual_range 22.94, 27.529;
    String long_name "sigma-T";
    String standard_name "sea_water_sigma_t";
    String units "kg m-3";
  }
  POTM {
    Float32 _FillValue NaN;
    Float32 actual_range 0.785, 12.502;
    String long_name "potential temperature";
    String standard_name "sea_water_potential_temperature";
    String units "degree_C";
  }
  SIGP {
    Float32 _FillValue NaN;
    Float32 actual_range 22.94, 27.535;
    String long_name "Sigma-Theta";
    String standard_name "sea_water_sigma_theta";
    String units "kg m-3";
  }
  FRET {
    Float32 _FillValue NaN;
    Float32 actual_range -2.31, -1.63;
    String long_name "freezing temperature";
    String standard_name "freezing_temperature_of_sea_water";
    String units "degree_C";
  }
  ASAL {
    Float32 _FillValue NaN;
    Float32 actual_range 30.062, 35.16;
    String long_name "absolute salinity";
    String standard_name "sea_water_absolute_salinity";
    String units "g kg-1";
  }
  CONT {
    Float32 _FillValue NaN;
    Float32 actual_range 0.798, 12.571;
    String long_name "conservative temperature";
    String standard_name "sea_water_conservative_temperature";
    String units "degree_C";
  }
  D_CT {
    Float32 _FillValue NaN;
    Float32 actual_range 22.953, 29.887;
    String long_name "TEOS-10 (s, t, p) density";
    String units "kg m-3";
  }
  D0CT {
    Float32 _FillValue NaN;
    Float32 actual_range 22.944, 27.538;
    String long_name "TEOS-10 (s, t, 0) density";
    String units "kg m-3";
  }
  id {
    String cf_role "profile_id";
    String long_name "Original filename";
    String units "unitless";
  }
 }
  NC_GLOBAL {
    String Cast_Number "033";
    String cdm_altitude_proxy "PRES";
    String cdm_data_type "Profile";
    String cdm_profile_variables "id, longitude, latitude, station";
    String contributor_name "Gwénaëlle Chaillou, Toste Tanhua, Olivier Hérard, William Nesbitt, Douglas Wallace";
    String contributor_role "principal investigator, coauthor, coauthor, coauthor, principal investigator";
    String Conventions "CF-1.10, COARDS, ACDD-1.3";
    String creator_name "UQAR-ISMER";
    String creator_type "institution";
    String Cruise_Name "2119_TRex_deep";
    String Cruise_Number "2021019";
    String description "The present CTD dataset comes from the first mission of the Trex-Deep phase, which aims to study transport and dispersal processes in the bottom waters of the Laurentian Channel, from the maritime estuary to Cabot Strait";
    String description_fr "Le jeu de données CTD provient de la première mission de la phase TReX-deep qui vise l'étude des processus de transport et dispersion dans les eaux de fond du chenal Laurentien, de l'estuaire maritime au détroit de Cabot";
    String DOI "https://doi.org/10.26071/ogsl-bca1b181-4f0e";
    Float64 Easternmost_Easting -58.7672;
    String featureType "Profile";
    Float64 geospatial_lat_max 50.084;
    Float64 geospatial_lat_min 47.2667;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -58.7672;
    Float64 geospatial_lon_min -67.273;
    String geospatial_lon_units "degrees_east";
    String history 
"2024-12-22T23:26:25Z (local files)
2024-12-22T23:26:25Z https://erddap.ogsl.ca/erddap/tabledap/uqarIsmerCtdTrex.html";
    String infoUrl "https://www.ismer.ca/";
    String institution "Institut des sciences de la mer de Rimouski";
    String keywords "conductivity, CTD, density, depth, fluorescence, oxygen, pressure, salinity, temperature";
    String keywords_fr "CTD, conductivité, densité, fluorescence, oxygène, pression, profondeur, salinité, température";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "Creative Commons Attribution 4.0 International license CC-BY 4.0. Allows for open sharing and adaptation of the data provided that the original creator is attributed";
    String licenseUrl "https://creativecommons.org/licenses/by/4.0/";
    Float64 Northernmost_Northing 50.084;
    String Original_Filename "CTD_2021019_033_1_UP.ODF";
    String platform "research vessel";
    String platform_vocabulary "https://vocab.nerc.ac.uk/collection/L06/current/";
    String publisher_identifier "https://ror.org/03wfagk22";
    String publisher_name "St. Lawrence Global Observatory";
    String publisher_name_fr "Observatoire global du Saint-Laurent";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 47.2667;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String subsetVariables "station";
    String summary "CTD data from the Maritime Estuary and Gulf of St. Lawrence from the TreX mission (Tracer Release EXperiment) - deep 01";
    String summary_fr "Données CTD de l'estuaire maritime et golfe du St-Laurent lors de la mission TReX (Tracer Release EXperiment ) - deep 01";
    String time_coverage_end "2021-10-29T06:35:30Z";
    String time_coverage_start "2021-10-23T01:07:41Z";
    String title "CTD - TReX mission - Estuary and Gulf of St. Lawrence | CTD - mission TReX - Estuaire et golfe du St-Laurent";
    Float64 Westernmost_Easting -67.273;
  }
}

 

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
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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