ERDDAP > tabledap > Data Access Form

Dataset Title:	Station 45139 - Western Lake Erie
Institution:	Environment and Climate Change Canada   (Dataset ID: obs_587_latest)
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Files | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum	Maximum
time (UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2025-12-05T00:05:00Z	2025-12-05T18:05:00Z
longitude (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-79.53	-79.53
latitude (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		43.25	43.25
air_pressure (Pa)	!= =~ <= >= = < >		!= =~ <= >= = < >		100610.0	101850.0
air_pressure_at_mean_sea_level (Pa)	!= =~ <= >= = < >		!= =~ <= >= = < >		101540.0	102790.0
air_temperature (K)	!= =~ <= >= = < >		!= =~ <= >= = < >		266.85	273.55
sea_surface_temperature (K)	!= =~ <= >= = < >		!= =~ <= >= = < >		272.25	277.15
sea_surface_wave_maximum_height (m)	!= =~ <= >= = < >		!= =~ <= >= = < >
sea_surface_wave_maximum_period (s)	!= =~ <= >= = < >		!= =~ <= >= = < >
sea_surface_wave_mean_height_of_highest_tenth (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	0.3
sea_surface_wave_mean_period (s)	!= =~ <= >= = < >		!= =~ <= >= = < >		2.0	10.5
sea_surface_wave_significant_height (m)	!= =~ <= >= = < >		!= =~ <= >= = < >
sea_surface_wave_significant_period (s)	!= =~ <= >= = < >		!= =~ <= >= = < >
wind_from_direction (Wind direction (from), degree)	!= =~ <= >= = < >		!= =~ <= >= = < >		10.0	350.0
wind_speed (m s-1)	!= =~ <= >= = < >		!= =~ <= >= = < >		1.0	7.69444444444444
wind_speed_of_gust (m s-1)	!= =~ <= >= = < >		!= =~ <= >= = < >
platform	!= =~ <= >= = < >		!= =~ <= >= = < >

 

Server-side Functions

distinct()

orderBy orderByDescending orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean orderBySum (" time longitude latitude air_pressure air_pressure_at_mean_sea_level air_temperature sea_surface_temperature sea_surface_wave_maximum_height sea_surface_wave_maximum_period sea_surface_wave_mean_height_of_highest_tenth sea_surface_wave_mean_period sea_surface_wave_significant_height sea_surface_wave_significant_period wind_from_direction wind_speed wind_speed_of_gust platform time longitude latitude air_pressure air_pressure_at_mean_sea_level air_temperature sea_surface_temperature sea_surface_wave_maximum_height sea_surface_wave_maximum_period sea_surface_wave_mean_height_of_highest_tenth sea_surface_wave_mean_period sea_surface_wave_significant_height sea_surface_wave_significant_period wind_from_direction wind_speed wind_speed_of_gust platform time longitude latitude air_pressure air_pressure_at_mean_sea_level air_temperature sea_surface_temperature sea_surface_wave_maximum_height sea_surface_wave_maximum_period sea_surface_wave_mean_height_of_highest_tenth sea_surface_wave_mean_period sea_surface_wave_significant_height sea_surface_wave_significant_period wind_from_direction wind_speed wind_speed_of_gust platform time longitude latitude air_pressure air_pressure_at_mean_sea_level air_temperature sea_surface_temperature sea_surface_wave_maximum_height sea_surface_wave_maximum_period sea_surface_wave_mean_height_of_highest_tenth sea_surface_wave_mean_period sea_surface_wave_significant_height sea_surface_wave_significant_period wind_from_direction wind_speed wind_speed_of_gust platform time longitude latitude air_pressure air_pressure_at_mean_sea_level air_temperature sea_surface_temperature sea_surface_wave_maximum_height sea_surface_wave_maximum_period sea_surface_wave_mean_height_of_highest_tenth sea_surface_wave_mean_period sea_surface_wave_significant_height sea_surface_wave_significant_period wind_from_direction wind_speed wind_speed_of_gust platform ")

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

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    UInt32 _ChunkSizes 512;
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.7648931e+9, 1.7649579e+9;
    String axis "T";
    String calendar "gregorian";
    String gts_ingest "true";
    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";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue -9999.0;
    Float64 actual_range -79.53, -79.53;
    String axis "X";
    String comment "Longitude given by data provider for this platform dataset";
    String gts_ingest "true";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
    Float64 valid_max 180.0;
    Float64 valid_min -180.0;
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue -9999.0;
    Float64 actual_range 43.25, 43.25;
    String axis "Y";
    String comment "Latitude given by data provider for this platform dataset";
    String gts_ingest "true";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
    Float64 valid_max 90.0;
    Float64 valid_min -90.0;
  }
  air_pressure {
    UInt32 _ChunkSizes 1, 1;
    Float64 _FillValue -999.0;
    Float64 actual_range 100610.0, 101850.0;
    String axis "T";
    String comment "Air or atmospheric pressure is the pressure exerted by overlying air. (IOOS)";
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String instrument "instrument0";
    String ioos_category "Pressure";
    String long_name "Air pressure";
    Float64 missing_value -999.0;
    String platform "platform";
    String standard_name "air_pressure";
    String units "Pa";
  }
  air_pressure_at_mean_sea_level {
    UInt32 _ChunkSizes 1, 1;
    Float64 _FillValue -999.0;
    Float64 actual_range 101540.0, 102790.0;
    String axis "T";
    String comment "Air pressure at mean sea level is the atmospheric pressure at sea level at a given location. (NOAA)";
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String instrument "instrument0";
    String ioos_category "Pressure";
    String long_name "Air pressure at mean sea level";
    Float64 missing_value -999.0;
    String platform "platform";
    String standard_name "air_pressure_at_mean_sea_level";
    String units "Pa";
  }
  air_temperature {
    UInt32 _ChunkSizes 1, 1;
    Float64 _FillValue -999.0;
    Float64 actual_range 266.85, 273.55;
    String axis "T";
    String comment "Air temperature is the temperature of air in situ. (IOOS)";
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String instrument "instrument0";
    String ioos_category "Temperature";
    String long_name "Air temperature";
    Float64 missing_value -999.0;
    String platform "platform";
    String standard_name "air_temperature";
    String units "K";
  }
  sea_surface_temperature {
    UInt32 _ChunkSizes 1, 1;
    Float64 _FillValue -999.0;
    Float64 actual_range 272.25, 277.15;
    String axis "T";
    String comment "Sea surface temperature is usually abbreviated as 'SST'. It is the temperature of sea [or lake] water near the surface (including the part under sea-ice, if any). (CF)";
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String instrument "instrument0";
    String ioos_category "Temperature";
    String long_name "Surface water temperature";
    Float64 missing_value -999.0;
    String platform "platform";
    String standard_name "sea_surface_temperature";
    String units "K";
  }
  sea_surface_wave_maximum_height {
    String ioos_category "Surface Waves";
    String platform "platform";
    String standard_name "sea_surface_wave_maximum_height";
    String units "m";
  }
  sea_surface_wave_maximum_period {
    String ioos_category "Surface Waves";
    String platform "platform";
    String standard_name "sea_surface_wave_maximum_period";
    String units "s";
  }
  sea_surface_wave_mean_height_of_highest_tenth {
    UInt32 _ChunkSizes 1, 1;
    Float64 _FillValue -999.0;
    Float64 actual_range 0.0, 0.3;
    String axis "T";
    String comment "Wave height is defined as the vertical distance from a wave trough to the following wave crest. The height of the highest tenth is defined as the mean of the highest ten percent of trough to crest distances measured during the observation period. (CF def)";
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String instrument "instrument0";
    String ioos_category "Surface Waves";
    String long_name "Mean wave height of highest tenth";
    Float64 missing_value -999.0;
    String platform "platform";
    String standard_name "sea_surface_wave_mean_height_of_highest_tenth";
    String units "m";
  }
  sea_surface_wave_mean_period {
    UInt32 _ChunkSizes 1, 1;
    Float64 _FillValue -999.0;
    Float64 actual_range 2.0, 10.5;
    String axis "T";
    String comment "A period is an interval of time, or the time-period of an oscillation. Wave period is the interval of time between repeated features on the waveform such as crests, troughs or upward passes through the mean level. Wave mean period is the mean period measured over the observation duration. (CF def)";
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String instrument "instrument0";
    String ioos_category "Surface Waves";
    String long_name "Mean wave period";
    Float64 missing_value -999.0;
    String platform "platform";
    String standard_name "sea_surface_wave_mean_period";
    String units "s";
  }
  sea_surface_wave_significant_height {
    String ioos_category "Surface Waves";
    String platform "platform";
    String standard_name "sea_surface_wave_significant_height";
    String units "m";
  }
  sea_surface_wave_significant_period {
    String ioos_category "Surface Waves";
    String platform "platform";
    String standard_name "sea_surface_wave_significant_period";
    String units "s";
  }
  wind_from_direction {
    UInt32 _ChunkSizes 1, 1;
    Float64 _FillValue -999.0;
    Float64 actual_range 10.0, 350.0;
    String axis "T";
    String comment " Wind direction is the direction from which wind is blowing. It is a meteorological convention (degrees clockwise from North). (IOOS)";
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String instrument "instrument0";
    String ioos_category "Wind";
    String long_name "Wind direction (from)";
    Float64 missing_value -999.0;
    String platform "platform";
    String standard_name "wind_from_direction";
    String units "degree";
  }
  wind_speed {
    UInt32 _ChunkSizes 1, 1;
    Float64 _FillValue -999.0;
    Float64 actual_range 1.0, 7.69444444444444;
    String axis "T";
    String comment "Wind speed is the magnitude of wind velocity. Wind is motion of air relative to the surface of the earth. (IOOS)";
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String instrument "instrument0";
    String ioos_category "Wind";
    String long_name "Wind speed";
    Float64 missing_value -999.0;
    String platform "platform";
    String standard_name "wind_speed";
    String units "m s-1";
  }
  wind_speed_of_gust {
    String ioos_category "Wind";
    String platform "platform";
    String standard_name "wind_speed_of_gust";
    String units "m s-1";
  }
  platform {
    String _Unsigned "false";
    String cf_role "timeseries_id";
    String ioos_category "Unknown";
  }
 }
  NC_GLOBAL {
    String _NCProperties "version=2,netcdf=4.9.4-development,hdf5=1.14.2";
    String acknowledgement "Thanks to Mathew Biddle, Tim Boyer, and the NCEI NetCDF working group for guidance";
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "platform,longitude,latitude";
    String comment "These data were automatically archived by GLOS' Seagull Platform. Contact GLOS with questions or concerns.";
    String contributor_name "Environment and Climate Change Canada";
    String contributor_role "Ocean Observing System Contributor";
    String Conventions "COARDS,CF-1.7,IOOS-1.2,ACDD-1.3";
    String creator_country "Canada";
    String creator_email "ec.dps-client.ec@canada.ca";
    String creator_institution "Environment and Climate Change Canada";
    String creator_name "Environment and Climate Change Canada";
    String creator_sector "gov_federal";
    String creator_type "institution";
    String creator_url "https://www.canada.ca/en/environment-climate-change.html";
    String date_created "2025-12-08T01:02:11.671065Z";
    String date_issued "2025-12-08T01:02:11.671097Z";
    String date_metadata_modified "2025-12-08T01:02:11.671093Z";
    String date_modified "2025-12-08T01:02:11.671088Z";
    Float64 Easternmost_Easting -79.53;
    String featureType "TimeSeries";
    String geospatial_bounds "POINT (-79.530000 43.250000)";
    String geospatial_bounds_crs "EPSG:4326";
    String geospatial_bounds_vertical_crs "EPSG:5829";
    Float64 geospatial_lat_max 43.25;
    Float64 geospatial_lat_min 43.25;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -79.53;
    Float64 geospatial_lon_min -79.53;
    String geospatial_lon_units "degrees_east";
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String gts_ingest "true";
    String history 
"These data were automatically archived by GLOS' Seagull Platform. Corrections to data may periodically occur. Contact GLOS with questions or concerns.
2025-12-08T01:13:16Z (local database)
2025-12-08T01:13:16Z https://seagull-erddap.glos.org/erddap/tabledap/obs_587_latest.html";
    String id "obs_587_latest";
    String infoUrl "https://www.ndbc.noaa.gov/station_page.php?station=45139";
    String institution "Environment and Climate Change Canada";
    String instrument_vocabulary "Uniform Resource Name (URN)";
    String keywords "(from), Air, air, at, direction, from, Gust, gust, height, highest, level, Maximum, maximum, Mean, mean, of, period, pressure, sea, Significant, significant, Speed, speed, Surface, surface, temperature, tenth, water, wave, Wind, wind";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data contributor, GLOS, NOAA, nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information.";
    String metadata_link "https://www.ncei.noaa.gov/data/oceans/ncei/formats/netcdf/v2.0/";
    String naming_authority "org.glos";
    String ncei_template_version "NCEI_NetCDF_TimeSeries_Orthogonal_Template_v2.0";
    Float64 Northernmost_Northing 43.25;
    String platform "moored_buoy";
    String platform_name "Western Lake Ontario - Grimsby";
    String platform_type "moored_buoy";
    String platform_vocabulary "http://mmisw.org/ont/ioos/platform";
    String processing_level "Not Applicable";
    String product_version "v1";
    String program "NCEI-IOOS-GLOS Data Pipeline";
    String project "NCEI-IOOS-GLOS Data Pipeline";
    String publisher_country "United States";
    String publisher_email "info@glos.org";
    String publisher_institution "GLOS";
    String publisher_name "GLOS Cyberinfrastructure Engineer";
    String publisher_type "position";
    String publisher_url "https://glos.org";
    String references "https://www.ncei.noaa.gov/data/oceans/ncei/formats/netcdf/v2.0/";
    String sea_name "Great Lakes";
    String source "GLOS Seagull";
    String sourceUrl "(local database)";
    Float64 Southernmost_Northing 43.25;
    String standard_name_vocabulary "CF Standard Name Table v77";
    String summary "Station 45139 is owned and operated by Environment and Climate Change Canada. 45139 is located in western Lake Ontario near Grimsby and is in 35 meters of water. It is a 3-meter disc buoy that is seasonally deployed to monitor physical water and meteorological parameters.";
    String time_coverage_duration "PT1M";
    String time_coverage_end "2025-12-05T18:05:00Z";
    String time_coverage_resolution "PT3600S";
    String time_coverage_start "2025-12-05T00:05:00Z";
    String title "Station 45139 - Western Lake Erie";
    String uuid "TBD";
    Float64 Westernmost_Easting -79.53;
    String wmo_platform_code "45139";
  }
}

 

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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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