ERDDAP > tabledap > Data Access Form

Dataset Title:	XEOS H1 Buoy Wave Sensor
Institution:	XEOS   (Dataset ID: SmartAtlantic_XEOS_h1_buoy)
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Files | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum	Maximum
station_name	!= =~ <= >= = < >		!= =~ <= >= = < >		"smb_h1_data"	"smb_h1_data"
time (Timestamp, UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2022-10-26T18:20:00Z	2023-01-27T04:18:00Z
latitude (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		44.4933	44.4933
longitude (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-63.5094	-63.5094
precise_lat (Precise Latitude, degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		44.4933	44.4933
precise_lon (Precise Longitude, degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-63.5094	-63.5094
battery_level (Battery Voltage, V)	!= =~ <= >= = < >		!= =~ <= >= = < >		12.4	14.8
temperature (degree_C)	!= =~ <= >= = < >		!= =~ <= >= = < >		-4	24
wave_ht_sig (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.27	6.57
wave_period_max (s)	!= =~ <= >= = < >		!= =~ <= >= = < >		2.32	18.28
wave_ht_max (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.45	9.57
wave_dir_avg (degree)	!= =~ <= >= = < >		!= =~ <= >= = < >		0	359
wave_spread_avg (Wavespread, degree)	!= =~ <= >= = < >		!= =~ <= >= = < >		33	47
sea_surface_wave_mean_period (s)	!= =~ <= >= = < >		!= =~ <= >= = < >		2.85	10.1
sample_quality (1)	!= =~ <= >= = < >		!= =~ <= >= = < >		2	7

 

Server-side Functions

distinct()

orderBy orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean orderBySum (" station_name time latitude longitude precise_lat precise_lon battery_level temperature wave_ht_sig wave_period_max wave_ht_max wave_dir_avg wave_spread_avg sea_surface_wave_mean_period sample_quality station_name time latitude longitude precise_lat precise_lon battery_level temperature wave_ht_sig wave_period_max wave_ht_max wave_dir_avg wave_spread_avg sea_surface_wave_mean_period sample_quality station_name time latitude longitude precise_lat precise_lon battery_level temperature wave_ht_sig wave_period_max wave_ht_max wave_dir_avg wave_spread_avg sea_surface_wave_mean_period sample_quality station_name time latitude longitude precise_lat precise_lon battery_level temperature wave_ht_sig wave_period_max wave_ht_max wave_dir_avg wave_spread_avg sea_surface_wave_mean_period sample_quality station_name time latitude longitude precise_lat precise_lon battery_level temperature wave_ht_sig wave_period_max wave_ht_max wave_dir_avg wave_spread_avg sea_surface_wave_mean_period sample_quality ")

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). .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 {
  station_name {
    String _Encoding "UTF-8";
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "Station Name";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.6668084e+9, 1.67479308e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Timestamp";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 44.4933, 44.4933;
    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";
    Float32 actual_range -63.5094, -63.5094;
    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";
  }
  precise_lat {
    Float64 actual_range 44.4933, 44.4933;
    String ioos_category "Location";
    String long_name "Precise Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  precise_lon {
    Float64 actual_range -63.5094, -63.5094;
    String ioos_category "Location";
    String long_name "Precise Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  battery_level {
    Float32 actual_range 12.4, 14.8;
    String ioos_category "Other";
    String long_name "Battery Voltage";
    String units "V";
  }
  temperature {
    String _Unsigned "false";
    Byte actual_range -4, 24;
    String ioos_category "Temperature";
    String long_name "Temperature";
    String units "degree_C";
  }
  wave_ht_sig {
    Float32 actual_range 0.27, 6.57;
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Surface Waves";
    String long_name "Sea Surface Wave Significant Height";
    String standard_name "sea_surface_wave_significant_height";
    String units "m";
  }
  wave_period_max {
    Float32 actual_range 2.32, 18.28;
    Float64 colorBarMaximum 20.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Surface Waves";
    String long_name "Sea Surface Wave Maximum Period";
    String standard_name "sea_surface_wave_maximum_period";
    String units "s";
  }
  wave_ht_max {
    Float32 actual_range 0.45, 9.57;
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Surface Waves";
    String long_name "Sea Surface Wave Significant Height";
    String standard_name "sea_surface_wave_significant_height";
    String units "m";
  }
  wave_dir_avg {
    Int16 actual_range 0, 359;
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Surface Waves";
    String long_name "Sea Surface Wave To Direction";
    String standard_name "sea_surface_wave_to_direction";
    String units "degree";
  }
  wave_spread_avg {
    String _Unsigned "false";
    Byte actual_range 33, 47;
    String ioos_category "Surface Waves";
    String long_name "Wavespread";
    String units "degree";
  }
  sea_surface_wave_mean_period {
    Float32 actual_range 2.85, 10.1;
    Float64 colorBarMaximum 20.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Surface Waves";
    String long_name "Mean Zero-Upcrossing Period";
    String units "s";
  }
  sample_quality {
    String _Unsigned "false";
    Byte actual_range 2, 7;
    String ioos_category "Quality";
    String long_name "Sample Quality";
    String units "1";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station_name,longitude,latitude";
    String contributor_name "Canadian Coast Guard (CCG)";
    String contributor_role "Notices to Mariners - NOTMAR, Duncan Reef light buoy H1, https://www.notmar.gc.ca/publications/list-lights/atl/a327-en";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "dan@xeostech.com";
    String creator_name "Xeos Technologies";
    String creator_url "https://xeostech.com/";
    Float64 Easternmost_Easting -63.5094;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 44.4933;
    Float64 geospatial_lat_min 44.4933;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -63.5094;
    Float64 geospatial_lon_min -63.5094;
    String geospatial_lon_units "degrees_east";
    String history 
"2023-01-27T05:05:22Z (local files)
2023-01-27T05:05:22Z https://www.smartatlantic.ca/erddap/tabledap/SmartAtlantic_XEOS_h1_buoy.html";
    String infoUrl "https://www.smartatlantic.ca/station_alt.html?id=halifax_h1";
    String institution "XEOS";
    String keywords "data, direction, Earth Science > Oceans > Ocean Waves > Significant Wave Height, Earth Science > Oceans > Ocean Waves > Swells, Earth Science > Oceans > Ocean Waves > Wave Period, Earth Science > Oceans > Ocean Waves > Wave Speed/Direction, height, identifier, institute, latitude, level, longitude, marine, maximumwaveheight, name, ocean, oceans, peakwaveperiod, period, sea, sea_surface_swell_wave_period, sea_surface_wave_significant_height, sea_surface_wave_to_direction, seaSurfaceHeight, significant, significantwaveheight, speed, station, station_name, surface, surface waves, swell, swells, time, timestamp, wave, wavedirection, waves, wavespread, xeos";
    String keywords_fra "seaSurfaceHeight";
    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, ERD, 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.";
    Float64 Northernmost_Northing 44.4933;
    String platform "moored surface buoy";
    String platform_vocabulary "https://vocab.nerc.ac.uk/collection/L06/current/";
    String project "SmartAtlantic";
    String publisher_email "SmartBay@smartbay.ca";
    String publisher_name "SmartAtlantic";
    String publisher_url "https://www.smartatlantic.ca/";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 44.4933;
    String sponsor_name "Atlantic Pilotage Authority (APA)";
    String sponsor_url "https://www.atlanticpilotage.com/";
    String standard_name_vocabulary "CF Standard Name Table v78";
    String summary "Buoy H1 is a lateral navigation buoy deployed in the vicinity of Duncan Reef. The buoy’s position (44 29.6001N, 063 30.5655W) (DD MM.MMMM). The BRIZO sensor is being sponsored by the Atlantic Pilotage Authority.";
    String summary_fra "La bouée H1 est une bouée de navigation latérale déployée à proximité du récif Duncan. Position de la bouée (44 29.6001N, 063 30.5655W) (DD MM.MMMM). Le capteur BRIZO est parrainé par l'Administration de pilotage de l'Atlantique.";
    String testOutOfDate "now-120minutes";
    String time_coverage_end "2023-01-27T04:18:00Z";
    String time_coverage_start "2022-10-26T18:20:00Z";
    String title "XEOS H1 Buoy Wave Sensor";
    String title_fra "XEOS H1 Bouoy Wave Sensor";
    String uuid "10be6eff-1460-4286-b8af-ceccdc05d55c";
    Float64 Westernmost_Easting -63.5094;
  }
}

 

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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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