ERDDAP > tabledap > Data Access Form

Dataset Title:	[Baltic GasEx 1 SF6 and Helium] - SF6 and helium data from a tracer release experiment conducted June 2018 in the coastal Baltic Sea during FS Alkor cruise AL510 (Collaborative Research: Influence of Surfactants on Air-Sea Gas Exchange: 3He/SF6 Experiments in the Baltic Sea)
Institution:	BCO-DMO   (Dataset ID: bcodmo_dataset_915772_v1)
Information:	Summary | License | Metadata | Background | Files | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum	Maximum
time (Iso_datetime_utc, UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2018-06-06T16:07:00Z	2018-06-12T04:11:00Z
Station (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"35"	"65"
Latitude (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		54.5343	54.7075
longitude (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		10.0724	10.1787
depth (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		1.4	20.8
Temperature (degrees Celsius (°C))	!= =~ <= >= = < >		!= =~ <= >= = < >		6.06	19.2
Salinity (PSU)	!= =~ <= >= = < >		!= =~ <= >= = < >		11.8	18.3
He3_excess (cubic centimeters at standard temperature and pressure per gram times 10^-16 (ccSTP/g*10-16))	!= =~ <= >= = < >		!= =~ <= >= = < >		-13.3	4790.0
SF6_rep1 (picomoles per kilogram (pmol/kg))	!= =~ <= >= = < >		!= =~ <= >= = < >		0.00188	0.75
SF6_rep2 (picomoles per kilogram (pmol/kg))	!= =~ <= >= = < >		!= =~ <= >= = < >		0.00508	0.824
SF6_rep3 (picomoles per kilogram (pmol/kg))	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0754	0.196

 

Server-side Functions

distinct()

orderBy orderByDescending orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean orderBySum (" time Station Latitude longitude depth Temperature Salinity He3_excess SF6_rep1 SF6_rep2 SF6_rep3 time Station Latitude longitude depth Temperature Salinity He3_excess SF6_rep1 SF6_rep2 SF6_rep3 time Station Latitude longitude depth Temperature Salinity He3_excess SF6_rep1 SF6_rep2 SF6_rep3 time Station Latitude longitude depth Temperature Salinity He3_excess SF6_rep1 SF6_rep2 SF6_rep3 time Station Latitude longitude depth Temperature Salinity He3_excess SF6_rep1 SF6_rep2 SF6_rep3 ")

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 {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.52830122e+9, 1.52877666e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Iso_datetime_utc";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  Station {
    String long_name "Station";
    String units "unitless";
  }
  Latitude {
    Float32 actual_range 54.5343, 54.7075;
    String long_name "Latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range 10.0724, 10.1787;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 actual_range 1.4, 20.8;
    String axis "Z";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  Temperature {
    Float32 actual_range 6.06, 19.2;
    String long_name "Temperature";
    String units "degrees Celsius (°C)";
  }
  Salinity {
    Float32 actual_range 11.8, 18.3;
    String long_name "Salinity";
    String units "PSU";
  }
  He3_excess {
    Float32 actual_range -13.3, 4790.0;
    String long_name "He3_excess";
    String units "cubic centimeters at standard temperature and pressure per gram times 10^-16 (ccSTP/g*10-16)";
  }
  SF6_rep1 {
    Float32 actual_range 0.00188, 0.75;
    String long_name "Sf6_rep1";
    String units "picomoles per kilogram (pmol/kg)";
  }
  SF6_rep2 {
    Float32 actual_range 0.00508, 0.824;
    String long_name "Sf6_rep2";
    String units "picomoles per kilogram (pmol/kg)";
  }
  SF6_rep3 {
    Float32 actual_range 0.0754, 0.196;
    String long_name "Sf6_rep3";
    String units "picomoles per kilogram (pmol/kg)";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Other";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "info@bco-dmo.org";
    String creator_name "BCO-DMO";
    String creator_url "https://www.bco-dmo.org/";
    String defaultDataQuery "&time<now";
    String doi "10.26008/1912/bco-dmo.915772.1";
    Float64 Easternmost_Easting 10.1787;
    Float64 geospatial_lon_max 10.1787;
    Float64 geospatial_lon_min 10.0724;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 20.8;
    Float64 geospatial_vertical_min 1.4;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2024-12-21T15:05:26Z (local files)
2024-12-21T15:05:26Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_915772_v1.html";
    String infoUrl "https://www.bco-dmo.org/dataset/915772";
    String institution "BCO-DMO";
    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 sourceUrl "(local files)";
    String summary "These data are 3He and SF6 from a tracer release experiment conducted in the coastal Baltic Sea. The experiment was conducted in June 2018 and the goal was to determine gas transfer velocities in the Baltic Sea, where it is thought that excess surfactants and limited wind fetch would affect the relationship between wind speed and gas transfer velocity.";
    String time_coverage_end "2018-06-12T04:11:00Z";
    String time_coverage_start "2018-06-06T16:07:00Z";
    String title "[Baltic GasEx 1 SF6 and Helium] - SF6 and helium data from a tracer release experiment conducted June 2018 in the coastal Baltic Sea during FS Alkor cruise AL510 (Collaborative Research: Influence of Surfactants on Air-Sea Gas Exchange: 3He/SF6 Experiments in the Baltic Sea)";
    Float64 Westernmost_Easting 10.0724;
  }
}

 

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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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