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Dataset Title:  CTD Data Associated with Jetski Radiometry for Remote Sensing Reflectance
Uncertainty Propagation | Données CTD associées à la radiometrie de la
motomarine pour la propagation de l'incertitude de la couleur de l'eau
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Institution:  Université du Québec à Rimouski   (Dataset ID: ismerCtdAlgaeWise)
Range: longitude = -64.36018 to -64.34293°E, latitude = 49.76754 to 49.80888°N, time = 2022-07-05T12:28:34Z to 2022-07-05T14:20:09Z
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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 {
  MeasurmentId {
    UInt32 _FillValue 4294967295;
    UInt32 actual_range 1, 3666;
    String ioos_category "Identifier";
    String long_name "CTD measurment identifier";
    String name "MeasurmentId";
    String units "unitless";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.657024114e+9, 1.657030809e+9;
    String axis "T";
    String coverage_content_type "coordinate";
    String datatype "string";
    String ioos_category "Time";
    String long_name "Time";
    String original_name "date_time";
    String standard_name "time";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0115/";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 49.76754, 49.80888;
    String axis "Y";
    Float64 colorBarMaximum 49.81;
    Float64 colorBarMinimum 49.76;
    String description "Latitude coordinates of the measurement sites in decimal degrees (degrees north)";
    String ioos_category "Location";
    String long_name "Latitude";
    Float32 missing_value NaN;
    String name "lat";
    String original_name "lat";
    String standard_name "latitude";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0600/";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 _FillValue 1.0e+36;
    Float32 actual_range -64.36018, -64.34293;
    String axis "X";
    Float64 colorBarMaximum -64.34;
    Float64 colorBarMinimum -64.37;
    String description "Longitude coordinates of the measurement sites in decimal degrees (degrees east)";
    String ioos_category "Location";
    String long_name "Longitude";
    Float32 missing_value NaN;
    String name "lon";
    String original_name "lon";
    String standard_name "longitude";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0554/";
    String units "degrees_east";
  }
  PRES {
    String _CoordinateAxisType "Height";
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 0.006, 0.489;
    String colorBarPalette "KT_deep";
    String instrument "Sea-Bird SBE 19plus SEACAT CTD";
    String instrument_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0047/";
    String ioos_category "Pressure";
    String long_name "Sea Pressure";
    String name "PRES";
    String original_name "pressure";
    String standard_name "sea_water_pressure_due_to_sea_water";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CIEIIDJF/";
    String units "decibars";
  }
  TE90 {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 8.6502, 11.5493;
    Float64 colorBarMaximum 12.0;
    Float64 colorBarMinimum 8.5;
    String colorBarPalette "KT_thermal";
    String instrument "Sea-Bird SBE 19plus SEACAT CTD";
    String instrument_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0047/";
    String ioos_category "Temperature";
    String long_name "Temperature (ITS-90)";
    String name "TE90";
    String original_name "temperature";
    String standard_name "sea_water_temperature";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/CFSN0335/";
    String units "degree_C";
  }
  PSAL {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 3.809075, 29.95871;
    Float64 colorBarMaximum 30.0;
    Float64 colorBarMinimum 3.5;
    String colorBarPalette "KT_haline";
    String description "Practical salinity unit computed from the CTD with the The Gibbs SeaWater (GSW) Oceanographic Toolbox of TEOS-10";
    String instrument "Sea-Bird SBE 19plus SEACAT CTD";
    String instrument_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0047/";
    String ioos_category "Salinity";
    String long_name "Practical Salinity";
    Float32 missing_value NaN;
    String name "PSAL";
    String original_name "salinity_practical";
    String standard_name "sea_water_practical_salinity";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P07/current/IADIHDIJ/";
    String units "PSU";
  }
  radiance_sensor_depth {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range -0.4848301, -0.005948843;
    String colorBarPalette "KT_deep";
    String comment "Negative with depth";
    String description "Depth of the first (closest to the surface) upwelling radiance sensor computed from the CTD pressure";
    String instrument "Sea-Bird SBE 19plus SEACAT CTD";
    String instrument_identifier "https://vocab.nerc.ac.uk/collection/L22/current/TOOL0047/";
    String ioos_category "Location";
    String long_name "Radiance sensor depth";
    String name "radiance_sensor_depth";
    String original_name "z1";
    String related_dataset "https://erddap.ogsl.ca/erddap/tabledap/ismerRadiometryAlgaeWise.html";
    String standard_name "depth_of_sampling_event_start_relative_to_water_surface_in_the_water_body";
    String standard_name_identifier "https://vocab.nerc.ac.uk/collection/P01/current/DEPHPRST/";
    String units "m";
  }
  ensemble {
    UInt32 _FillValue 4294967295;
    UInt32 actual_range 1657024128, 1657030784;
    String description "Identifier used to process and discretize data by 10 seconds ensemble";
    String ioos_category "Identifier";
    String long_name "Ten seconds subset";
    String name "ensemble";
    String original_name "ensemble";
    String related_dataset "https://erddap.ogsl.ca/erddap/tabledap/ismerRadiometryAlgaeWise.html";
    String units "unitless";
  }
 }
  NC_GLOBAL {
    String Attribut "Type";
    String cdm_data_type "Point";
    String contributor_institution "(1) Institut des sciences de la mer de Rimouski (2-3) Université du Québec à Rimouski";
    String contributor_name "(1) Raphaël Mabit, (2) Simon Bélanger, (3) Pascal Bernatchez";
    String contributor_role "(1) author, metadata custodian, data owner (2-3) co-author";
    String Conventions "CF-1.12, COARDS ACDD-1.3, NCCSV-1.2";
    String creator_identifier "https://orcid.org/0000-0002-5341-873X";
    String creator_institution "Institut des sciences de la mer";
    String creator_name "Raphaël Mabit";
    String creator_type "person";
    String cruise_end_date "2022-07-05";
    String cruise_start_date "2022-07-05";
    String defaultGraphQuery "&time>=min(time)&.bgColor=0xffffffff";
    Float64 Easternmost_Easting -64.34293;
    String featureType "Point";
    Float64 geospatial_lat_max 49.80888;
    Float64 geospatial_lat_min 49.76754;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -64.34293;
    Float64 geospatial_lon_min -64.36018;
    String geospatial_lon_units "degrees_east";
    String grid_mapping_epsg_code "EPSG:4326";
    String grid_mapping_epsg_code_url "https://epsg.io/4326";
    String grid_mapping_geographic_crs_name "WGS 84";
    String grid_mapping_inverse_flattening "298.2572236";
    String grid_mapping_name "latitude_longitude";
    String grid_mapping_prime_meridian_name "Greenwich";
    String grid_mapping_semi_major_axis "6378137";
    String history 
"2026-08-18T00:43:37Z (local files)
2026-08-18T00:43:37Z http://erddap.cioos.ca/tabledap/ismerCtdAlgaeWise.das";
    String infoUrl "https://doi.org/10.26071/62ec6c52-15e5-4531";
    String institution "Université du Québec à Rimouski";
    String instrument_vocabulary "SeaVoX Device Catalogue - https://github.com/nvs-vocabs/L22";
    String keywords "ctd, gamache bay, sea surface salinity, sea surface temperature";
    String keywords_fr "ctd ; salinite de surface ; temperature de surface ; Baie Gamache";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license CC BY-NC-SA 4.0";
    String licenseUrl "https://creativecommons.org/licenses/by-nc-sa/4.0/";
    String marine_region "Anticosti Platform";
    String marine_region_identifier "http://marineregions.org/mrgid/61171";
    Float64 Northernmost_Northing 49.80888;
    String platform "self-propelled small boat";
    String platform_vocabulary "https://vocab.nerc.ac.uk/collection/L06/current/";
    String project "AlgeaWise";
    String project_url "https://aquatel.uqar.ca/projet-algae-wise/";
    String related_identifier "https://erddap.ogsl.ca/erddap/tabledap/ismerRadiometryAlgaeWise.html";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 49.76754;
    String standard_name_nerc_vocabulary "The NERC Vocabulary Server (NVS)";
    String standard_name_vocabulary "CF Standard Name Table v90";
    String subsetVariables "ensemble, MeasurmentId";
    String summary "Radiance, irradiance and attitude from the jet-ski, used to develop the uncertainty propagation methodology and characterize the platform (Mabit et al. 2026). Data acquired in Gamache Bay (Anticosti Island) the 5 of july 2022.";
    String summary_fr "Données de radiance, d'irradiance et d'attitude mesurées avec la motomarine, utilisées pour développer la méthode de propagation de l'incertitude et caractériser la plateforme (Mabit et al. 2026). Ce jeu de données a été acquis dans la baie Gamache (île d'Anticosti) le 5 juillet 2022.";
    String time_coverage_end "2022-07-05T14:20:09Z";
    String time_coverage_start "2022-07-05T12:28:34Z";
    String title "CTD Data Associated with Jetski Radiometry for Remote Sensing Reflectance Uncertainty Propagation | Données CTD associées à la radiometrie de la motomarine pour la propagation de l'incertitude de la couleur de l'eau";
    Float64 Westernmost_Easting -64.36018;
  }
}

 

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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