ERDDAP > tabledap > Data Access Form

Dataset Title:	AVOS M/V NAMAO
Institution:	Environment and Climate Change Canada   (Dataset ID: AVOS_namao_ee8d_d94d_df77)
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
time (Date And Time, UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2018-04-10T14:00Z	2019-12-31T23:40Z
latitude (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		50.431805	53.8476583333333
longitude (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-99.2554	-96.3790766666667
wind_speed	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	41.9
RelWindDirFrom (Wind From Direction)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	48.8
WindDirFrom (Wind From Direction)	!= =~ <= >= = < >		!= =~ <= >= = < >		0	360
air_pressure	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	1016.02
air_temperature	!= =~ <= >= = < >		!= =~ <= >= = < >		-38.3	33.8
relative_humidity	!= =~ <= >= = < >		!= =~ <= >= = < >		11	110
Temp (Temperature)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.19	28.53
platform_speed_wrt_ground	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 7.0 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 8.0 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9 9.0 9.1 9.2 9.3 9.4 9.5 9.6 9.7 9.8 9.9 10.0 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 10.9 11.0 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9 12.0 12.1 NaN
air_pressure_corrected	!= =~ <= >= = < >		!= =~ <= >= = < >		979.46	1048.11
platform_orientation	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	999.0

 

Server-side Functions

distinct()

orderBy orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean (" time latitude longitude wind_speed RelWindDirFrom WindDirFrom air_pressure air_temperature relative_humidity Temp platform_speed_wrt_ground air_pressure_corrected platform_orientation time latitude longitude wind_speed RelWindDirFrom WindDirFrom air_pressure air_temperature relative_humidity Temp platform_speed_wrt_ground air_pressure_corrected platform_orientation time latitude longitude wind_speed RelWindDirFrom WindDirFrom air_pressure air_temperature relative_humidity Temp platform_speed_wrt_ground air_pressure_corrected platform_orientation time latitude longitude wind_speed RelWindDirFrom WindDirFrom air_pressure air_temperature relative_humidity Temp platform_speed_wrt_ground air_pressure_corrected platform_orientation time latitude longitude wind_speed RelWindDirFrom WindDirFrom air_pressure air_temperature relative_humidity Temp platform_speed_wrt_ground air_pressure_corrected platform_orientation ")

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).

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.5233688e+9, 1.5778356e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Date And Time";
    String source_name "Date_and_time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01T00:00Z";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 50.431805, 53.8476583333333;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -99.2554, -96.3790766666667;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  wind_speed {
    Float32 actual_range 0.0, 41.9;
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Wind";
    String long_name "Wind Speed";
    String standard_name "wind_speed";
  }
  RelWindDirFrom {
    Float32 actual_range 0.0, 48.8;
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Wind";
    String long_name "Wind From Direction";
    String standard_name "wind_from_direction";
  }
  WindDirFrom {
    Int16 actual_range 0, 360;
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Wind";
    String long_name "Wind From Direction";
    String standard_name "wind_from_direction";
  }
  air_pressure {
    Float32 actual_range 0.0, 1016.02;
    Float64 colorBarMaximum 1050.0;
    Float64 colorBarMinimum 950.0;
    String ioos_category "Pressure";
    String long_name "Air Pressure";
    String standard_name "air_pressure";
  }
  air_temperature {
    Float32 actual_range -38.3, 33.8;
    Float64 colorBarMaximum 40.0;
    Float64 colorBarMinimum -10.0;
    String ioos_category "Temperature";
    String long_name "Air Temperature";
    String standard_name "air_temperature";
  }
  relative_humidity {
    Byte actual_range 11, 110;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 20.0;
    String ioos_category "Meteorology";
    String long_name "Relative Humidity";
    String standard_name "relative_humidity";
  }
  Temp {
    Float32 actual_range 0.19, 28.53;
    String ioos_category "Temperature";
    String long_name "Temperature";
  }
  platform_speed_wrt_ground {
    Float32 actual_range 0.0, 12.1;
    String ioos_category "Currents";
    String long_name "Platform Speed Wrt Ground";
  }
  air_pressure_corrected {
    Float32 actual_range 979.46, 1048.11;
    Float64 colorBarMaximum 1050.0;
    Float64 colorBarMinimum 950.0;
    String ioos_category "Pressure";
    String long_name "Air Pressure";
    String standard_name "air_pressure";
  }
  platform_orientation {
    Float32 actual_range 0.0, 999.0;
    String ioos_category "Unknown";
    String long_name "Platform Orientation";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Point";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_name "Environment and Climate Change Canada";
    String creator_url "https://www.canada.ca/en/environment-climate-change.html";
    Float64 Easternmost_Easting -96.3790766666667;
    String featureType "Point";
    Float64 geospatial_lat_max 53.8476583333333;
    Float64 geospatial_lat_min 50.431805;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -96.3790766666667;
    Float64 geospatial_lon_min -99.2554;
    String geospatial_lon_units "degrees_east";
    String history 
"2022-05-27T18:21:46Z (local files)
2022-05-27T18:21:46Z http://CanWINerddap.ad.umanitoba.ca/erddap/tabledap/AVOS_namao_ee8d_d94d_df77.html";
    String infoUrl "https://www.canada.ca/en/environment-climate-change.html";
    String institution "Environment and Climate Change Canada";
    String keywords "air, air_pressure, air_pressure_corrected, air_temperature, atmosphere, atmospheric, avos, canada, change, climate, currents, data, date, direction, earth, Earth Science > Atmosphere > Atmospheric Pressure > Atmospheric Pressure Measurements, Earth Science > Atmosphere > Atmospheric Pressure > Sea Level Pressure, Earth Science > Atmosphere > Atmospheric Pressure > Static Pressure, Earth Science > Atmosphere > Atmospheric Temperature > Air Temperature, Earth Science > Atmosphere > Atmospheric Temperature > Surface Air Temperature, Earth Science > Atmosphere > Atmospheric Water Vapor > Humidity, Earth Science > Atmosphere > Atmospheric Winds > Surface Winds, environment, ground, humidity, latitude, level, longitude, measurements, meteorology, namao, orientation, platform, platform_orientation, platform_speed_wrt_ground, pressure, relative, relative_humidity, RelWindDirFrom, science, sea, seawater, speed, static, surface, Temp, temperature, time, v, vapor, water, wind, wind_from_direction, wind_speed, WindDirFrom, winds, wrt";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "Open Government Licence 2.0 - Canada";
    Float64 Northernmost_Northing 53.8476583333333;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 50.431805;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String subsetVariables "platform_speed_wrt_ground";
    String summary "AVOS data collected aboard the M/V NAMAO, owned by the Lake Winnipeg Research Consortium (LWRC).";
    String time_coverage_end "2019-12-31T23:40Z";
    String time_coverage_start "2018-04-10T14:00Z";
    String title "AVOS M/V NAMAO";
    Float64 Westernmost_Easting -99.2554;
  }
}

 

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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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