ERDDAP > tabledap > Data Access Form

Dataset Title:	EastJamesBay_CTD_2018-21
Institution:	Centre for Earth Observation Science   (Dataset ID: EJB_2018_2021_CTDs_96c2_a5f0_0733)
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Files | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum	Maximum
Station	!= =~ <= >= = < >		!= =~ <= >= = < >		"10"	"c37b-5"
time (Date Time, UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2018-03-01T00:00:00Z	2021-08-20T19:42:00Z
longitude (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-79.71	-78.45
latitude (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		51.95	54.63
sea_water_pressure_dbar	!= =~ <= >= = < >		!= =~ <= >= = < >		-0.00327	38.0
CTDSal_psu	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	348.86
WC_temp_CTD_degC	!= =~ <= >= = < >		!= =~ <= >= = < >		-1.29	19.75

 

Server-side Functions

distinct()

orderBy orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean (" Station time longitude latitude sea_water_pressure_dbar CTDSal_psu WC_temp_CTD_degC Station time longitude latitude sea_water_pressure_dbar CTDSal_psu WC_temp_CTD_degC Station time longitude latitude sea_water_pressure_dbar CTDSal_psu WC_temp_CTD_degC Station time longitude latitude sea_water_pressure_dbar CTDSal_psu WC_temp_CTD_degC Station time longitude latitude sea_water_pressure_dbar CTDSal_psu WC_temp_CTD_degC ")

File type: (more info) .asc - View OPeNDAP-style ISO-8859-1 comma-separated text. .csv - Download a ISO-8859-1 comma-separated text table (line 1: names; line 2: units; ISO 8601 times). .csvp - Download a ISO-8859-1 .csv file with line 1: name (units). Times are ISO 8601 strings. .csv0 - Download a ISO-8859-1 .csv file without column names or units. Times are ISO 8601 strings. .dataTable - A JSON file formatted for use with the Google Visualization client library (Google Charts). .das - View the dataset's metadata via an ISO-8859-1 OPeNDAP Dataset Attribute Structure (DAS). .dds - View the dataset's structure via an ISO-8859-1 OPeNDAP Dataset Descriptor Structure (DDS). .dods - OPeNDAP clients use this to download the data in the DODS binary format. .esriCsv - Download a ISO_8859_1 .csv file for ESRI's ArcGIS 9.x and below (separate date and time columns). .fgdc - View the dataset's UTF-8 FGDC .xml metadata. .geoJson - Download longitude,latitude,otherColumns data as a UTF-8 GeoJSON .json file. .graph - View a Make A Graph web page. .help - View a web page with a description of tabledap. .html - View an OPeNDAP-style HTML Data Access Form. .htmlTable - View a UTF-8 .html web page with the data in a table. Times are ISO 8601 strings. .iso19115 - View the dataset's ISO 19115-2/19139 UTF-8 .xml metadata. .itx - Download an ISO-8859-1 Igor Text File. Each response column becomes a wave. .json - View a table-like UTF-8 JSON file (missing value = 'null'; times are ISO 8601 strings). .jsonlCSV1 - View a UTF-8 JSON Lines CSV file with column names on line 1 (mv = 'null'; times are ISO 8601 strings). .jsonlCSV - View a UTF-8 JSON Lines CSV file without column names (mv = 'null'; times are ISO 8601 strings). .jsonlKVP - View a UTF-8 JSON Lines file with Key:Value pairs (missing value = 'null'; times are ISO 8601 strings). .mat - Download a MATLAB binary file. .nc - Download a flat, table-like, NetCDF-3 binary file with COARDS/CF/ACDD metadata. .ncHeader - View the UTF-8 header (the metadata) for the NetCDF-3 .nc file. .ncCF - Download a NetCDF-3 CF Discrete Sampling Geometries file (Contiguous Ragged Array). .ncCFHeader - View the UTF-8 header (the metadata) for the .ncCF file. .ncCFMA - Download a NetCDF-3 CF Discrete Sampling Geometries file (Multidimensional Array). .ncCFMAHeader - View the UTF-8 header (the metadata) for the .ncCFMA file. .nccsv - Download a NetCDF-3-like 7-bit ASCII NCCSV .csv file with COARDS/CF/ACDD metadata. .nccsvMetadata - View the dataset's metadata as the top half of a 7-bit ASCII NCCSV .csv file. .ncoJson - Download a UTF-8 NCO lvl=2 JSON file with COARDS/CF/ACDD metadata. .odvTxt - Download longitude,latitude,time,otherColumns as an ISO-8859-1 ODV Generic Spreadsheet File (.txt). .subset - View an HTML form which uses faceted search to simplify picking subsets of the data. .tsv - Download a ISO-8859-1 tab-separated text table (line 1: names; line 2: units; ISO 8601 times). .tsvp - Download a ISO-8859-1 .tsv file with line 1: name (units). Times are ISO 8601 strings. .tsv0 - Download a ISO-8859-1 .tsv file without column names or units. Times are ISO 8601 strings. .wav - Download a .wav audio file. All columns must be numeric and of the same type. .xhtml - View a UTF-8 XHTML (XML) file with the data in a table. Times are ISO 8601 strings. .kml - View a .kml file, suitable for Google Earth. .smallPdf - View a small .pdf image file with a graph or map. .pdf - View a standard, medium-sized .pdf image file with a graph or map. .largePdf - View a large .pdf image file with a graph or map. .smallPng - View a small .png image file with a graph or map. .png - View a standard, medium-sized .png image file with a graph or map. .largePng - View a large .png image file with a graph or map. .transparentPng - View a .png image file (just the data, without axes, landmask, or legend).

(Documentation / Bypass this form )
 
Submit (Please be patient. It may take a while to get the data.)

 

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  Station {
    String ioos_category "Identifier";
    String long_name "Station";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.5198624e+9, 1.62948852e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Date Time";
    String source_name "Date_time";
    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";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -79.71, -78.45;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String source_name "Longitude_east";
    String standard_name "longitude";
    String units "degrees_east";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 51.95, 54.63;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String source_name "Latitude_north";
    String standard_name "latitude";
    String units "degrees_north";
  }
  sea_water_pressure_dbar {
    Float32 actual_range -0.00327, 38.0;
    String ioos_category "Pressure";
    String long_name "Sea Water Pressure  Dbar";
  }
  CTDSal_psu {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 348.86;
    String ioos_category "Salinity";
    String long_name "CTDSal Psu";
  }
  WC_temp_CTD_degC {
    Float32 _FillValue NaN;
    Float32 actual_range -1.29, 19.75;
    String ioos_category "Unknown";
    String long_name "WC Temp CTD Deg C";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Point";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_name "Centre for Earth Observation Science";
    String Data_collection_start_date "2018-01-23";
    String Dataset_Author "Peck, Chris";
    String Dataset_Author_Affiliation "Centre for Earth Observation Science - University of Manitoba";
    String Dataset_Author_Email "peckc@myumanitoba.ca";
    String Dataset_Contributor "Kuzyk, Zou Zou";
    String Dataset_Contributor_Afiliation "Centre for Earth Observation Science - University of Manitoba";
    String Dataset_Contributor_Email "zouzou.kuzyk@umanitoba.ca";
    String Dataset_Contributor_Role "Supervisor";
    String Dataset_Maintenance_&_Update_Frequency "Not planned";
    String Dataset_Status "Complete";
    Float64 Dataset_Version 1.0;
    Float64 Easternmost_Easting -78.45;
    String featureType "Point";
    Float64 geospatial_lat_max 54.63;
    Float64 geospatial_lat_min 51.95;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -78.45;
    Float64 geospatial_lon_min -79.71;
    String geospatial_lon_units "degrees_east";
    String history 
"2025-11-04T05:32:51Z https://canwin-datahub.ad.umanitoba.ca/data/dataset/e-james-bay-moorings-ctds/resource/c32d4b2e-5423-4541-9471-be37915ac24d
2025-11-04T05:32:51Z http://CanWINerddap.ad.umanitoba.ca/erddap/tabledap/EJB_2018_2021_CTDs_96c2_a5f0_0733.html";
    String infoUrl "https://canwin-datahub.ad.umanitoba.ca/data/dataset/e-james-bay-moorings-ctds";
    String institution "Centre for Earth Observation Science";
    String keywords "Coastal dynamics, eelgrass, Rivers, Salinity, Temperature";
    String license "Creative Commons Attribution 4.0 International";
    Float64 Northernmost_Northing 54.63;
    String Project_Data_Curator "Peck, Chris";
    String Project_Data_Curator_Afiliation "Centre for Earth Observation Science - University of Manitoba";
    String Project_Data_Curator_Email "peckc@myumanitoba.ca";
    String Research_Area "Chisasibi";
    String Sample_collection_instrument_name "Hobo CT Logger,Hobo Water Level logger,Seametrics CT2X,RBR PAR,Alec CT,Castaway by Sontek";
    String sourceUrl "https://canwin-datahub.ad.umanitoba.ca/data/dataset/e-james-bay-moorings-ctds/resource/c32d4b2e-5423-4541-9471-be37915ac24d";
    Float64 Southernmost_Northing 51.95;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String summary "Conductivity, Temperature, Depth (CTD) data collected in north east James Bay 2016-2017";
    String time_coverage_end "2021-08-20T19:42:00Z";
    String time_coverage_start "2018-03-01T00:00:00Z";
    String title "EastJamesBay_CTD_2018-21";
    String Type "Dataset";
    Float64 Westernmost_Easting -79.71;
  }
}

 

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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 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.

• (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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