ERDDAP > tabledap > Data Access Form

Dataset Title:	Adak Port
Institution:	Marine Exchange of Alaska (MXAK)   (Dataset ID: org_mxak_adak_port)
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum	Maximum
time (UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2015-05-05T13:50:00Z	2018-12-12T11:50:00Z
latitude (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		51.869417	51.869417
longitude (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-176.6407	-176.6407
z (Altitude, m)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	0.0
air_pressure (Barometric Pressure, millibars)	!= =~ <= >= = < >		!= =~ <= >= = < >		354.4	1043.2
dew_point_temperature (degree_Celsius)	!= =~ <= >= = < >		!= =~ <= >= = < >		-17.778	87.5
relative_humidity (%)	!= =~ <= >= = < >		!= =~ <= >= = < >		32.5	96.9
air_temperature (degree_Celsius)	!= =~ <= >= = < >		!= =~ <= >= = < >		-12.5	60.0
wind_speed_of_gust (Wind Gust, mile.hour-1)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.8055399999999999	120.14
wind_gust_from_direction (degrees)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	359.9
wind_speed (m.s-1)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.20578000000000002	43.522
wind_from_direction (degrees)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	359.9
station (Adak Port)	!= =~ <= >= = < >		!= =~ <= >= = < >

 

Server-side Functions

distinct()

orderBy orderByDescending orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean orderBySum (" time latitude longitude z air_pressure dew_point_temperature relative_humidity air_temperature wind_speed_of_gust wind_gust_from_direction wind_speed wind_from_direction station time latitude longitude z air_pressure dew_point_temperature relative_humidity air_temperature wind_speed_of_gust wind_gust_from_direction wind_speed wind_from_direction station time latitude longitude z air_pressure dew_point_temperature relative_humidity air_temperature wind_speed_of_gust wind_gust_from_direction wind_speed wind_from_direction station time latitude longitude z air_pressure dew_point_temperature relative_humidity air_temperature wind_speed_of_gust wind_gust_from_direction wind_speed wind_from_direction station time latitude longitude z air_pressure dew_point_temperature relative_humidity air_temperature wind_speed_of_gust wind_gust_from_direction wind_speed wind_from_direction station ")

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 {
  time {
    UInt32 _ChunkSizes 175296;
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.4308338e+9, 1.5446154e+9;
    String axis "T";
    String calendar "gregorian";
    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";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 51.869417, 51.869417;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -176.6407, -176.6407;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  z {
    UInt32 _ChunkSizes 1;
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "up";
    Float64 actual_range 0.0, 0.0;
    String axis "Z";
    String ioos_category "Location";
    Float64 least_significant_digit 2;
    String long_name "Altitude";
    String positive "up";
    String standard_name "altitude";
    String units "m";
  }
  air_pressure {
    UInt32 _ChunkSizes 175296, 1;
    Float64 _FillValue -9999.0;
    Float64 actual_range 354.4, 1043.2;
    String id "1014348";
    String ioos_category "Other";
    String long_name "Barometric Pressure";
    Float64 missing_value -9999.0;
    String platform "station";
    String standard_name "air_pressure";
    String standard_name_url "http://mmisw.org/ont/cf/parameter/air_pressure";
    String units "millibars";
  }
  dew_point_temperature {
    UInt32 _ChunkSizes 175296, 1;
    Float64 _FillValue -9999.0;
    Float64 actual_range -17.778, 87.5;
    String id "1014354";
    String ioos_category "Other";
    String long_name "Dew Point";
    Float64 missing_value -9999.0;
    String platform "station";
    String standard_name "dew_point_temperature";
    String standard_name_url "http://mmisw.org/ont/cf/parameter/dew_point_temperature";
    String units "degree_Celsius";
  }
  relative_humidity {
    UInt32 _ChunkSizes 175296, 1;
    Float64 _FillValue -9999.0;
    Float64 actual_range 32.5, 96.9;
    String id "1014349";
    String ioos_category "Other";
    String long_name "Relative Humidity";
    Float64 missing_value -9999.0;
    String platform "station";
    String standard_name "relative_humidity";
    String standard_name_url "http://mmisw.org/ont/cf/parameter/relative_humidity";
    String units "%";
  }
  air_temperature {
    UInt32 _ChunkSizes 175296, 1;
    Float64 _FillValue -9999.0;
    Float64 actual_range -12.5, 60.0;
    String id "1014353";
    String ioos_category "Other";
    String long_name "Air Temperature";
    Float64 missing_value -9999.0;
    String platform "station";
    String standard_name "air_temperature";
    String standard_name_url "http://mmisw.org/ont/cf/parameter/air_temperature";
    String units "degree_Celsius";
  }
  wind_speed_of_gust {
    UInt32 _ChunkSizes 175296, 1;
    Float64 _FillValue -9999.0;
    Float64 actual_range 0.8055399999999999, 120.14;
    String id "1014352";
    String ioos_category "Other";
    String long_name "Wind Gust";
    Float64 missing_value -9999.0;
    String platform "station";
    String standard_name "wind_speed_of_gust";
    String standard_name_url "http://mmisw.org/ont/cf/parameter/wind_speed_of_gust";
    String units "mile.hour-1";
  }
  wind_gust_from_direction {
    UInt32 _ChunkSizes 175296, 1;
    Float64 _FillValue -9999.0;
    Float64 actual_range 0.0, 359.9;
    String id "1014347";
    String ioos_category "Other";
    String long_name "Wind Gust From Direction";
    Float64 missing_value -9999.0;
    String platform "station";
    String standard_name "wind_gust_from_direction";
    String standard_name_url "http://mmisw.org/ont/ioos/parameter/wind_gust_from_direction";
    String units "degrees";
  }
  wind_speed {
    UInt32 _ChunkSizes 175296, 1;
    Float64 _FillValue -9999.0;
    Float64 actual_range 0.20578000000000002, 43.522;
    String id "1014350";
    String ioos_category "Other";
    String long_name "Wind Speed";
    Float64 missing_value -9999.0;
    String platform "station";
    String standard_name "wind_speed";
    String standard_name_url "http://mmisw.org/ont/cf/parameter/wind_speed";
    String units "m.s-1";
  }
  wind_from_direction {
    UInt32 _ChunkSizes 175296, 1;
    Float64 _FillValue -9999.0;
    Float64 actual_range 0.0, 359.9;
    String id "1014351";
    String ioos_category "Other";
    String long_name "Wind From Direction";
    Float64 missing_value -9999.0;
    String platform "station";
    String standard_name "wind_from_direction";
    String standard_name_url "http://mmisw.org/ont/cf/parameter/wind_from_direction";
    String units "degrees";
  }
  station {
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String ioos_code "urn:ioos:station:com.axiomdatascience:49393";
    String long_name "Adak Port";
    String short_name "org_mxak_adak_port";
    String type "fixed";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station,longitude,latitude";
    String contributor_email "information@aoos.org,feedback@axiomdatascience.com";
    String contributor_name "Alaska Ocean Observing System (AOOS),Axiom Data Science";
    String contributor_role "funder,processor";
    String contributor_role_vocabulary "NERC";
    String contributor_url "http://www.aoos.org/,https://www.axiomdatascience.com";
    String Conventions "IOOS-1.2, CF-1.6, ACDD-1.3, NCCSV-1.2";
    String creator_country "USA";
    String creator_email "tech-it@mxak.org";
    String creator_institution "Marine Exchange of Alaska (MXAK)";
    String creator_name "Marine Exchange of Alaska (MXAK)";
    String creator_sector "industry";
    String creator_type "institution";
    String creator_url "http://www.mxak.org/";
    String defaultDataQuery "wind_gust_from_direction,air_temperature,wind_speed_of_gust,z,wind_speed,time,relative_humidity,wind_from_direction,air_pressure,dew_point_temperature&time>=max(time)-3days";
    Float64 Easternmost_Easting -176.6407;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 51.869417;
    Float64 geospatial_lat_min 51.869417;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -176.6407;
    Float64 geospatial_lon_min -176.6407;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 0.0;
    Float64 geospatial_vertical_min 0.0;
    String geospatial_vertical_positive "up";
    String geospatial_vertical_units "m";
    String history 
"Downloaded from Marine Exchange of Alaska (MXAK) at 
2024-04-27T18:14:31Z http://www.mxak.org/services/mda/weather/realtime/adak_port/
2024-04-27T18:14:31Z http://erddap.aoos.org/erddap/tabledap/org_mxak_adak_port.html";
    Int32 id 49393;
    String infoUrl "https://portal.aoos.org/#metadata/49393/station";
    String institution "Marine Exchange of Alaska (MXAK)";
    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.";
    String naming_authority "com.axiomdatascience";
    Float64 Northernmost_Northing 51.869417;
    String platform "fixed";
    String platform_name "Adak Port";
    String platform_vocabulary "http://mmisw.org/ont/ioos/platform";
    String processing_level "Level 2";
    String publisher_country "USA";
    String publisher_email "tech-it@mxak.org";
    String publisher_institution "Marine Exchange of Alaska (MXAK)";
    String publisher_name "Marine Exchange of Alaska (MXAK)";
    String publisher_sector "industry";
    String publisher_type "institution";
    String publisher_url "http://www.mxak.org/";
    String references "http://www.mxak.org/services/mda/weather/realtime/adak_port/,,http://www.mxak.org/weather_stations/index.html,https://github.com/ioos/ioos_qc";
    String sourceUrl "http://www.mxak.org/services/mda/weather/realtime/adak_port/";
    Float64 Southernmost_Northing 51.869417;
    String standard_name_vocabulary "CF Standard Name Table v72";
    String summary "Timeseries data from 'Adak Port' (org_mxak_adak_port)";
    String time_coverage_end "2018-12-12T11:50:00Z";
    String time_coverage_start "2015-05-05T13:50:00Z";
    String title "Adak Port";
    Float64 Westernmost_Easting -176.6407;
  }
}

 

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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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