ERDDAP > tabledap > Data Access Form

Dataset Title:	DEEP Water Quality Data
Institution:	University of Connecticut   (Dataset ID: DEEP_WQ)
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum	Maximum
cruise_name	!= =~ <= >= = < >		!= =~ <= >= = < >
station_name	!= =~ <= >= = < >		!= =~ <= >= = < >
time (Date, UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >
latitude (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >
longitude (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >
depth_code	!= =~ <= >= = < >		!= =~ <= >= = < >
depth (Sensor Depth, m)	!= =~ <= >= = < >		!= =~ <= >= = < >
sea_water_pressure (dbar)	!= =~ <= >= = < >		!= =~ <= >= = < >
sea_water_electrical_conductivity (S/m)	!= =~ <= >= = < >		!= =~ <= >= = < >
sea_water_temperature (celsius)	!= =~ <= >= = < >		!= =~ <= >= = < >
oxygen_sensor_temp (celsius)	!= =~ <= >= = < >		!= =~ <= >= = < >
PAR (uE/s/m^2)	!= =~ <= >= = < >		!= =~ <= >= = < >
Chlorophyll (ug/L)	!= =~ <= >= = < >		!= =~ <= >= = < >
Corrected_Chlorophyll (ug/L)	!= =~ <= >= = < >		!= =~ <= >= = < >
pH	!= =~ <= >= = < >		!= =~ <= >= = < >
sea_water_salinity (psu)	!= =~ <= >= = < >		!= =~ <= >= = < >
oxygen_concentration_in_sea_water (mg/L)	!= =~ <= >= = < >		!= =~ <= >= = < >
winkler (mg/L)	!= =~ <= >= = < >		!= =~ <= >= = < >
corrected_oxygen (mg/L)	!= =~ <= >= = < >		!= =~ <= >= = < >
percent_saturation_100	!= =~ <= >= = < >		!= =~ <= >= = < >
percent_saturation (% Saturation)	!= =~ <= >= = < >		!= =~ <= >= = < >
sea_water_density (kg/m^3)	!= =~ <= >= = < >		!= =~ <= >= = < >
Start_Date (UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >
End_Date (UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >
Time_ON_Station	!= =~ <= >= = < >		!= =~ <= >= = < >
Time_OFF_Station	!= =~ <= >= = < >		!= =~ <= >= = < >

 

Server-side Functions

distinct()

orderBy orderByDescending orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean orderBySum (" cruise_name station_name time latitude longitude depth_code depth sea_water_pressure sea_water_electrical_conductivity sea_water_temperature oxygen_sensor_temp PAR Chlorophyll Corrected_Chlorophyll pH sea_water_salinity oxygen_concentration_in_sea_water winkler corrected_oxygen percent_saturation_100 percent_saturation sea_water_density Start_Date End_Date Time_ON_Station Time_OFF_Station cruise_name station_name time latitude longitude depth_code depth sea_water_pressure sea_water_electrical_conductivity sea_water_temperature oxygen_sensor_temp PAR Chlorophyll Corrected_Chlorophyll pH sea_water_salinity oxygen_concentration_in_sea_water winkler corrected_oxygen percent_saturation_100 percent_saturation sea_water_density Start_Date End_Date Time_ON_Station Time_OFF_Station cruise_name station_name time latitude longitude depth_code depth sea_water_pressure sea_water_electrical_conductivity sea_water_temperature oxygen_sensor_temp PAR Chlorophyll Corrected_Chlorophyll pH sea_water_salinity oxygen_concentration_in_sea_water winkler corrected_oxygen percent_saturation_100 percent_saturation sea_water_density Start_Date End_Date Time_ON_Station Time_OFF_Station cruise_name station_name time latitude longitude depth_code depth sea_water_pressure sea_water_electrical_conductivity sea_water_temperature oxygen_sensor_temp PAR Chlorophyll Corrected_Chlorophyll pH sea_water_salinity oxygen_concentration_in_sea_water winkler corrected_oxygen percent_saturation_100 percent_saturation sea_water_density Start_Date End_Date Time_ON_Station Time_OFF_Station cruise_name station_name time latitude longitude depth_code depth sea_water_pressure sea_water_electrical_conductivity sea_water_temperature oxygen_sensor_temp PAR Chlorophyll Corrected_Chlorophyll pH sea_water_salinity oxygen_concentration_in_sea_water winkler corrected_oxygen percent_saturation_100 percent_saturation sea_water_density Start_Date End_Date Time_ON_Station Time_OFF_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 {
  cruise_name {
    String ioos_category "Identifier";
    String long_name "Cruise Name";
  }
  station_name {
    String ioos_category "Identifier";
    String long_name "Station Name";
  }
  time {
    String _CoordinateAxisType "Time";
    String axis "T";
    String ioos_category "Time";
    String long_name "Date";
    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";
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  depth_code {
    String ioos_category "Identifier";
    String long_name "Depth Code";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    String axis "Z";
    String ioos_category "Location";
    String long_name "Sensor Depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  sea_water_pressure {
    String ioos_category "Pressure";
    String long_name "Sea Water Pressure";
    String units "dbar";
  }
  sea_water_electrical_conductivity {
    String ioos_category "Temperature";
    String long_name "Sea Water Conductivity";
    String units "S/m";
  }
  sea_water_temperature {
    String ioos_category "Temperature";
    String long_name "Sea Water Temperature";
    String standard_name "sea_water_temperature";
    String units "celsius";
  }
  oxygen_sensor_temp {
    String ioos_category "Identifier";
    String long_name "Oxygen Sensor Temperature";
    String units "celsius";
  }
  PAR {
    String ioos_category "Identifier";
    String long_name "Licor SA quantum sensor";
    String units "uE/s/m^2";
  }
  Chlorophyll {
    String ioos_category "Identifier";
    String long_name "Chlorophyll";
    String units "ug/L";
  }
  Corrected_Chlorophyll {
    String ioos_category "Identifier";
    String long_name "Corrected Chlorophyll";
    String units "ug/L";
  }
  pH {
    String ioos_category "Identifier";
    String long_name "pH";
  }
  sea_water_salinity {
    String ioos_category "Salinity";
    String long_name "Sea Water Salinity";
    String standard_name "sea_water_salinity";
    String units "psu";
  }
  oxygen_concentration_in_sea_water {
    String ioos_category "Dissolved O2";
    String long_name "Oxygen Concentration In Sea Water";
    String units "mg/L";
  }
  winkler {
    String ioos_category "Identifier";
    String long_name "Winkler";
    String units "mg/L";
  }
  corrected_oxygen {
    String ioos_category "Identifier";
    String long_name "Corrected Oxygen";
    String units "mg/L";
  }
  percent_saturation_100 {
    String ioos_category "Identifier";
    String long_name "100% Saturation";
  }
  percent_saturation {
    String ioos_category "Identifier";
    String long_name "% Saturation";
  }
  sea_water_density {
    String ioos_category "Unknown";
    String long_name "Sea Water Density";
    String standard_name "sea_water_density";
    String units "kg/m^3";
  }
  Start_Date {
    String ioos_category "Time";
    String long_name "Start Date";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  End_Date {
    String ioos_category "Time";
    String long_name "End Date";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  Time_ON_Station {
    String ioos_category "Identifier";
    String long_name "Time ON Station";
  }
  Time_OFF_Station {
    String ioos_category "Identifier";
    String long_name "Time OFF Station";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Point";
    String contributor_name "Department of Energy and Environmental Protection (DEEP)";
    String contributor_role "sponsor";
    String contributor_url "https://www.ct.gov/deep/site/default.asp";
    String Conventions "COARDS, CF-1.6, Unidata Dataset Discovery v1.0";
    String creator_address "1080 Shennecossett Road, Groton, CT 06340 USA";
    String creator_city "Groton";
    String creator_country "United States";
    String creator_email "james.odonnell@uconn.edu,todd.fake@uconn.edu";
    String creator_institution "University of Connecticut";
    String creator_sector "academic";
    String creator_url "http://lisicos.uconn.edu";
    String featureType "Point";
    String geospatial_lat_units "degrees_north";
    String geospatial_lon_units "degrees_east";
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2024-11-21T09:50:05Z (source database)
2024-11-21T09:50:05Z http://merlin.dms.uconn.edu:8080/erddap/tabledap/DEEP_WQ.html";
    String id "DEEP";
    String info_url "http://lisicos.uconn.edu/dep_portal.php";
    String infoUrl "http://lisicos.uconn.edu/";
    String institution "University of Connecticut";
    String keywords "Buoy > Oceans > Ocean Data > Long Island Sound";
    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.";
    String naming_authority "edu.connecticut";
    String neracoos_data_provider "UCONN";
    String project "DEEP";
    String publisher_country "United States";
    String publisher_email "todd.fake@uconn.edu";
    String publisher_institution "University of Connecticut";
    String publisher_name "Department of Marine Sciences, University of Connecticut";
    String publisher_url "http://lisicos.uconn.edu";
    String sourceUrl "(source database)";
    String standard_name_vocabulary "CF-1.6";
    String station "DEEP CTD Data";
    String station_site_desc "DEEP Water Quality Data";
    String summary "Long Island Sound observation data from the Department of Energy and Environmental Protection (DEEP). These data are served by Unidata's Thematic Realtime Environmental Distributed Data Services (THREDDS) Data Server (TDS) in a variety of interoperable data services and output formats.";
    String testOutOfDate "now-1day";
    String title "DEEP Water Quality Data";
  }
}

 

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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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