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Dataset Title:	Atmospheric data from an Airmar 150WX weather station at OBSEA Buoy (30min average)
Institution:	Polytechnic University of Catalonia (Dataset ID: EMSO_OBSEA_Buoy_Airmar_150WX_30min)
Range:	longitude = 1.75257 to 1.75257°E, latitude = 41.18212 to 41.18212°N, depth = 0.0 to 0.0m, time = 2011-10-06T11:00:00Z to 2021-12-08T23:30:00Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Data Access Form

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    UInt32 _ChunkSizes 379;
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.3178988e+9, 1.6390062e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "time of measurements";
    String sdn_parameter_name "Elapsed time relative to 1970-01-01T00:00:00Z";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/ELTMEP01/";
    String sdn_parameter_urn "SDN:P01::ELTMEP01";
    String sdn_uom_name "Seconds";
    String sdn_uom_uri "https://vocab.nerc.ac.uk/collection/P06/current/UTBB/";
    String sdn_uom_urn "SDN:P06::UTBB";
    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";
  }
  latitude {
    UInt32 _ChunkSizes 1;
    String _CoordinateAxisType "Lat";
    Float32 _FillValue -999999.0;
    Float32 actual_range 41.18212, 41.18212;
    String ancillary_variables "LATITUDE_QC";
    String axis "Y";
    String ioos_category "Location";
    String long_name "latitude of measurements";
    String sdn_parameter_name "Latitude north";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/ALATZZ01";
    String sdn_parameter_urn "SDN:P01::ALATZZ01";
    String sdn_uom_name "Degrees";
    String sdn_uom_uri "https://vocab.nerc.ac.uk/collection/P06/current/UAAA/";
    String sdn_uom_urn "SDN:P06::UAAA";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    UInt32 _ChunkSizes 1;
    String _CoordinateAxisType "Lon";
    Float32 _FillValue -999999.0;
    Float32 actual_range 1.75257, 1.75257;
    String ancillary_variables "LONGITUDE_QC";
    String axis "X";
    String ioos_category "Location";
    String long_name "longitude of measurements";
    String sdn_parameter_name "Longitude east";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/ALONZZ01";
    String sdn_parameter_urn "SDN:P01::ALONZZ01";
    String sdn_uom_name "Degrees";
    String sdn_uom_uri "https://vocab.nerc.ac.uk/collection/P06/current/UAAA/";
    String sdn_uom_urn "SDN:P06::UAAA";
    String standard_name "longitude";
    String units "degrees_east";
  }
  depth {
    UInt32 _ChunkSizes 1;
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 _FillValue -999999.0;
    Float32 actual_range 0.0, 0.0;
    String ancillary_variables "DEPTH_QC";
    String axis "Z";
    String ioos_category "Location";
    String long_name "depth of measurements";
    String positive "down";
    String sdn_parameter_name "Depth (spatial coordinate) relative to water surface in the water body";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/ADEPZZ01";
    String sdn_parameter_urn "SDN:P01::ADEPZZ01";
    String sdn_uom_name "Metres";
    String sdn_uom_uri "https://vocab.nerc.ac.uk/collection/P06/current/ULAA/";
    String sdn_uom_urn "SDN:P06::ULAA";
    String standard_name "depth";
    String units "m";
  }
  CAPH {
    UInt32 _ChunkSizes 1, 1, 1, 1, 379;
    Float32 _FillValue -999999.0;
    Float32 actual_range 908.60944, 1041.789;
    String ancillary_variables "CAPH_QC;CAPH_STD";
    String coordinates "LATITUDE;LONGITUDE;DEPTH;SENSOR_ID;TIME";
    String long_name "Atmospheric pressure";
    String sdn_parameter_name "Pressure (measured variable) exerted by the atmosphere by barometer and expressed at measurement altitude";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/CAPHTU01";
    String sdn_parameter_urn "SDN:P01::CAPHTU01";
    String sdn_uom_name "Hectopascals";
    String sdn_uom_uri "https://vocab.nerc.ac.uk/collection/P06/current/HPAX/";
    String sdn_uom_urn "SDN:P06::HPAX";
    String sensor_model "Airmar Ultrasonic WeatherStation 150WX";
    String sensor_mount "mounted_on_fixed_structure";
    String sensor_orientation "upward";
    String sensor_reference "https://vocab.nerc.ac.uk/collection/L22/current/TOOL1031/";
    String sensor_SeaVoX_L22_code "SDN:L22::TOOL1031";
    String sensor_serial_number "57323";
    String standard_name "air_pressure";
    String standard_name_uri "air_pressure";
    String units "Hectopascals";
  }
  AIRT {
    UInt32 _ChunkSizes 1, 1, 1, 1, 379;
    Float32 _FillValue -999999.0;
    Float32 actual_range -1.4, 34.0;
    String ancillary_variables "AIRT_QC;AIRT_STD";
    String coordinates "LATITUDE;LONGITUDE;DEPTH;SENSOR_ID;TIME";
    String long_name "temperature of the atmoshpere";
    String sdn_parameter_name "Temperature of the atmosphere";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/CTMPZZ01";
    String sdn_parameter_urn "SDN:P01::CTMPZZ01";
    String sdn_uom_name "Degrees Celsius";
    String sdn_uom_uri "https://vocab.nerc.ac.uk/collection/P06/current/UPAA/";
    String sdn_uom_urn "SDN:P06::UPAA";
    String sensor_model "Airmar Ultrasonic WeatherStation 150WX";
    String sensor_mount "mounted_on_fixed_structure";
    String sensor_orientation "upward";
    String sensor_reference "https://vocab.nerc.ac.uk/collection/L22/current/TOOL1031/";
    String sensor_SeaVoX_L22_code "SDN:L22::TOOL1031";
    String sensor_serial_number "57323";
    String standard_name "air_temperature";
    String standard_name_uri "air_temperature";
    String units "Degrees Celsius";
  }
  WDIR {
    UInt32 _ChunkSizes 1, 1, 1, 1, 379;
    Float32 _FillValue -999999.0;
    Float32 actual_range 0.0, 360.0;
    String ancillary_variables "WDIR_QC;WDIR_STD";
    String coordinates "LATITUDE;LONGITUDE;DEPTH;SENSOR_ID;TIME";
    String long_name "wind direction";
    String sdn_parameter_name "Direction (from) of wind relative to True North {wind direction} in the atmosphere by in-situ anemometer";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/EWDASS01";
    String sdn_parameter_urn "SDN:P01::EWDASS01";
    String sdn_uom_name "Degrees";
    String sdn_uom_uri "https://vocab.nerc.ac.uk/collection/P06/current/UAAA/";
    String sdn_uom_urn "SDN:P06::UAAA";
    String sensor_model "Airmar Ultrasonic WeatherStation 150WX";
    String sensor_mount "mounted_on_fixed_structure";
    String sensor_orientation "upward";
    String sensor_reference "https://vocab.nerc.ac.uk/collection/L22/current/TOOL1031/";
    String sensor_SeaVoX_L22_code "SDN:L22::TOOL1031";
    String sensor_serial_number "57323";
    String standard_name "wind_from_direction";
    String standard_name_uri "wind_from_direction";
    String units "Degrees";
  }
  WSPD {
    UInt32 _ChunkSizes 1, 1, 1, 1, 379;
    Float32 _FillValue -999999.0;
    Float32 actual_range 0.0, 36.4;
    String ancillary_variables "WSPD_QC;WSPD_STD";
    String coordinates "LATITUDE;LONGITUDE;DEPTH;SENSOR_ID;TIME";
    String long_name "wind speed";
    String sdn_parameter_name "Speed of wind {wind speed} in the atmosphere by in-situ anemometer";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/EWSBSS01";
    String sdn_parameter_urn "SDN:P01::EWSBSS01";
    String sdn_uom_name "Metres per second";
    String sdn_uom_uri "https://vocab.nerc.ac.uk/collection/P06/current/UVAA/";
    String sdn_uom_urn "SDN:P06::UVAA";
    String sensor_model "Airmar Ultrasonic WeatherStation 150WX";
    String sensor_mount "mounted_on_fixed_structure";
    String sensor_orientation "upward";
    String sensor_reference "https://vocab.nerc.ac.uk/collection/L22/current/TOOL1031/";
    String sensor_SeaVoX_L22_code "SDN:L22::TOOL1031";
    String sensor_serial_number "57323";
    String standard_name "wind_speed";
    String standard_name_uri "wind_speed";
    String units "Metres per second";
  }
  CAPH_QC {
    UInt32 _ChunkSizes 1, 1, 1, 1, 379;
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 1, 3;
    String conventions "OceanSITES QC Flags";
    String flag_meanings "unknown;good_data;probably_good_data;potentially_correctable_bad_data;bad_data;nominal_value;interpolated_value;missing_value";
    String flag_values "0;1;2;3;4;7;8;9";
    String long_name "Atmospheric pressure quality control flags";
  }
  AIRT_QC {
    UInt32 _ChunkSizes 1, 1, 1, 1, 379;
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 1, 3;
    String conventions "OceanSITES QC Flags";
    String flag_meanings "unknown;good_data;probably_good_data;potentially_correctable_bad_data;bad_data;nominal_value;interpolated_value;missing_value";
    String flag_values "0;1;2;3;4;7;8;9";
    String long_name "temperature of the atmoshpere quality control flags";
  }
  WDIR_QC {
    UInt32 _ChunkSizes 1, 1, 1, 1, 379;
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 1, 1;
    String conventions "OceanSITES QC Flags";
    String flag_meanings "unknown;good_data;probably_good_data;potentially_correctable_bad_data;bad_data;nominal_value;interpolated_value;missing_value";
    String flag_values "0;1;2;3;4;7;8;9";
    String long_name "wind direction quality control flags";
  }
  WSPD_QC {
    UInt32 _ChunkSizes 1, 1, 1, 1, 379;
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 1, 1;
    String conventions "OceanSITES QC Flags";
    String flag_meanings "unknown;good_data;probably_good_data;potentially_correctable_bad_data;bad_data;nominal_value;interpolated_value;missing_value";
    String flag_values "0;1;2;3;4;7;8;9";
    String long_name "wind speed quality control flags";
  }
  latitude_QC {
    UInt32 _ChunkSizes 1, 1, 1, 1, 379;
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 7, 7;
    String conventions "OceanSITES QC Flags";
    String flag_meanings "unknown;good_data;probably_good_data;potentially_correctable_bad_data;bad_data;nominal_value;interpolated_value;missing_value";
    String flag_values "0;1;2;3;4;7;8;9";
    String long_name "latitude of measurements quality control flags";
  }
  longitude_QC {
    UInt32 _ChunkSizes 1, 1, 1, 1, 379;
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 7, 7;
    String conventions "OceanSITES QC Flags";
    String flag_meanings "unknown;good_data;probably_good_data;potentially_correctable_bad_data;bad_data;nominal_value;interpolated_value;missing_value";
    String flag_values "0;1;2;3;4;7;8;9";
    String long_name "longitude of measurements quality control flags";
  }
  depth_QC {
    UInt32 _ChunkSizes 1, 1, 1, 1, 379;
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 7, 7;
    String conventions "OceanSITES QC Flags";
    String flag_meanings "unknown;good_data;probably_good_data;potentially_correctable_bad_data;bad_data;nominal_value;interpolated_value;missing_value";
    String flag_values "0;1;2;3;4;7;8;9";
    String long_name "depth of measurements quality control flags";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Point";
    String Conventions "OceanSITES;EMSO, NCCSV-1.2";
    String data_mode "R";
    String data_type "OceanSITES time-series data";
    String date_created "2024-10-29T11:27:01Z";
    String date_modified "2024-10-29T11:27:01Z";
    Float64 Easternmost_Easting 1.75257;
    String emso_facility "OBSEA";
    String featureType "Point";
    String format_version "1.4";
    Float64 geospatial_lat_max 41.18212;
    Float64 geospatial_lat_min 41.18212;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 1.75257;
    Float64 geospatial_lon_min 1.75257;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 0.0;
    Float64 geospatial_vertical_min 0.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2024-12-21T17:07:43Z (local files)
2024-12-21T17:07:43Z https://erddap.emso.eu/tabledap/EMSO_OBSEA_Buoy_Airmar_150WX_30min.das";
    String infoUrl "https://edmo.seadatanet.org/report/2150";
    String institution "Polytechnic University of Catalonia";
    String institution_edmo_code "2150";
    String institution_edmo_uri "https://edmo.seadatanet.org/report/2150";
    String keywords "AIRT, CAPH, WDIR, WSPD";
    String keywords_vocabulary "SeaDataNet Parameter Discovery Vocabulary";
    String license "CC-BY-4.0";
    String license_uri "https://spdx.org/licenses/CC-BY-4.0";
    String network "EMSO";
    Float64 Northernmost_Northing 41.18212;
    String principal_investigator "Joaquin del Rio";
    String principal_investigator_email "joaquin.del.rio@upc.edu";
    String source "moored surface buoy";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 41.18212;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String subsetVariables "CAPH_QC, AIRT_QC, WDIR_QC, WSPD_QC, latitude_QC, longitude_QC, depth_QC";
    String summary "Atmospheric data collected by an Airmar 150WX weather station at OBSEA Buoy averaged every 30min";
    String time_coverage_end "2021-12-08T23:30:00Z";
    String time_coverage_start "2011-10-06T11:00:00Z";
    String title "Atmospheric data from an Airmar 150WX weather station at OBSEA Buoy (30min average)";
    String update_interval "void";
    Float64 Westernmost_Easting 1.75257;
  }
}

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 (external link)

Data Access Protocol (DAP) (external link)

and its selection constraints (external link)

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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