ERDDAP > tabledap > Data Access Form

Dataset Title:	Water Property Measurements from the Bute Inlet Ocean Observing Station (BIOOS) Wirewalker, Bute Inlet, BC, Canada (Provisional)
Institution:	Hakai Institute   (Dataset ID: HakaiWirewalkerProvisional)
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Subset | Files | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum    or a List of Values	Maximum
serial_number	!= =~ <= >= = < >		!= =~ <= >= = < >		209760 209761
latitude (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		50.5744
longitude (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-124.9009
time (UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2026-02-04T23:23:38Z	2026-04-14T12:33:32Z
conductivity (mS/cm)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0965610072016716	33.773841857910156
temperature (degree_Celsius)	!= =~ <= >= = < >		!= =~ <= >= = < >		5.29522705078125	11.31800077506341
pressure (dbar)	!= =~ <= >= = < >		!= =~ <= >= = < >		10.222066879272461	261.41058349609375
temperature_1 (degree_Celsius)	!= =~ <= >= = < >		!= =~ <= >= = < >		5.978999614715576	10.640799604880158
dissolved_o2 (umol/L)	!= =~ <= >= = < >		!= =~ <= >= = < >		89.40000133216381	379.7000056579709
cast_id	!= =~ <= >= = < >		!= =~ <= >= = < >		1	1006
time_ms (Time (ms), ms)	!= =~ <= >= = < >		!= =~ <= >= = < >		1770247.0	1.776170012875E12

 

Server-side Functions

distinct()

orderBy orderByDescending orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean orderBySum (" serial_number latitude longitude time conductivity temperature pressure temperature_1 dissolved_o2 cast_id time_ms serial_number latitude longitude time conductivity temperature pressure temperature_1 dissolved_o2 cast_id time_ms serial_number latitude longitude time conductivity temperature pressure temperature_1 dissolved_o2 cast_id time_ms serial_number latitude longitude time conductivity temperature pressure temperature_1 dissolved_o2 cast_id time_ms serial_number latitude longitude time conductivity temperature pressure temperature_1 dissolved_o2 cast_id time_ms ")

File type: (more information) .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). .parquet - Download as a parquet file. Metadata contains column names ("column_names") and units ("column_units"). .parquetWMeta - Download as a parquet file with detailed metadata. .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 )
 
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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  serial_number {
    Float64 actual_range 209760, 209761;
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "Serial Number";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 50.5744, 50.5744;
    String axis "Y";
    String description "Fixed latitude of the deployment site";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -124.9009, -124.9009;
    String axis "X";
    String description "Fixed longitude of the deployment site";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.770247418625e+9, 1.776170012875e+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";
  }
  conductivity {
    Float64 actual_range 0.0965610072016716, 33.773841857910156;
    String ioos_category "Salinity";
    String long_name "Conductivity";
    String standard_name "sea_water_electrical_conductivity";
    String units "mS/cm";
  }
  temperature {
    Float64 actual_range 5.29522705078125, 11.31800077506341;
    String ioos_category "Temperature";
    String long_name "Temperature";
    String standard_name "sea_water_temperature";
    String units "degree_Celsius";
  }
  pressure {
    Float64 actual_range 10.222066879272461, 261.41058349609375;
    String ioos_category "Pressure";
    String long_name "Pressure";
    String standard_name "sea_water_pressure";
    String units "dbar";
  }
  temperature_1 {
    Float64 actual_range 5.978999614715576, 10.640799604880158;
    String ioos_category "Temperature";
    String long_name "Temperature 1";
    String standard_name "sea_water_temperature";
    String units "degree_Celsius";
  }
  dissolved_o2 {
    Float64 actual_range 89.40000133216381, 379.7000056579709;
    String ioos_category "Dissolved O2";
    String long_name "Dissolved O2 Concentration";
    String standard_name "moles_of_oxygen_per_unit_mass_in_sea_water";
    String units "umol/L";
  }
  cast_id {
    Float64 actual_range 1, 1006;
    String ioos_category "Identifier";
    String long_name "Cast ID";
  }
  time_ms {
    Float64 actual_range 1770247.0, 1.776170012875e+12;
    String comment "Raw instrument timestamp in milliseconds, retained for traceability.";
    String ioos_category "Time";
    String long_name "Time (ms)";
    String units "ms";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "serial_number, latitude, longitude";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    Float64 Easternmost_Easting -124.9009;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 50.5744;
    Float64 geospatial_lat_min 50.5744;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -124.9009;
    Float64 geospatial_lon_min -124.9009;
    String geospatial_lon_units "degrees_east";
    String history 
"2026-04-16T18:26:32Z (local files)
2026-04-16T18:26:32Z https://catalogue.hakai.org/erddap/tabledap/HakaiWirewalkerProvisional.html";
    String infoUrl "https://www.hakai.org";
    String institution "Hakai Institute";
    String license "https://creativecommons.org/licenses/by/4.0";
    Float64 Northernmost_Northing 50.5744;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 50.5744;
    String standard_name_vocabulary "CF Standard Name Table v79";
    String subsetVariables "serial_number, latitude, longitude";
    String summary "Provisional Wirewalker oceanographic data from the Hakai Institute. This dataset has not been fully quality controlled.";
    String time_coverage_end "2026-04-14T12:33:32Z";
    String time_coverage_start "2026-02-04T23:23:38Z";
    String title "Water Property Measurements from the Bute Inlet Ocean Observing Station (BIOOS) Wirewalker, Bute Inlet, BC, Canada (Provisional)";
    Float64 Westernmost_Easting -124.9009;
  }
}

 

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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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