ERDDAP > tabledap > Data Access Form

Dataset Title:	Great Bay,NH. Squamscott River WQ station
Institution:	NERRS   (Dataset ID: GRBSQWQ_NERRS)
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Subset | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum    or a List of Values	Maximum
time (UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2012-03-20T17:30:00Z	2022-12-08T16:00:00Z
station	!= =~ <= >= = < >		!= =~ <= >= = < >		"grbsqwq"
name	!= =~ <= >= = < >		!= =~ <= >= = < >		"Squamscott River"
reserveName (Reserve)	!= =~ <= >= = < >		!= =~ <= >= = < >
latitude (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		43.052402
longitude (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-70.91181
depth (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		-0.09	4.12
oxygen_concentration_in_sea_water (mg/L)	!= =~ <= >= = < >		!= =~ <= >= = < >		-3.7	39.0
fractional_saturation_of_oxygen_in_sea_water (percent)	!= =~ <= >= = < >		!= =~ <= >= = < >		-46.8	500.0
sea_water_acidity (pH)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	11.1
sea_water_salinity (psu)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	949.9
specific_conductance (msiemens/cm)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	559.6
sea_water_temperature (celsius)	!= =~ <= >= = < >		!= =~ <= >= = < >		-1.1	29.6
sea_water_turbidity (NTU)	!= =~ <= >= = < >		!= =~ <= >= = < >		-200.0	15054.0

 

Server-side Functions

distinct()

orderBy orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax (" time station name reserveName latitude longitude depth oxygen_concentration_in_sea_water fractional_saturation_of_oxygen_in_sea_water sea_water_acidity sea_water_salinity specific_conductance sea_water_temperature sea_water_turbidity time station name reserveName latitude longitude depth oxygen_concentration_in_sea_water fractional_saturation_of_oxygen_in_sea_water sea_water_acidity sea_water_salinity specific_conductance sea_water_temperature sea_water_turbidity time station name reserveName latitude longitude depth oxygen_concentration_in_sea_water fractional_saturation_of_oxygen_in_sea_water sea_water_acidity sea_water_salinity specific_conductance sea_water_temperature sea_water_turbidity time station name reserveName latitude longitude depth oxygen_concentration_in_sea_water fractional_saturation_of_oxygen_in_sea_water sea_water_acidity sea_water_salinity specific_conductance sea_water_temperature sea_water_turbidity time station name reserveName latitude longitude depth oxygen_concentration_in_sea_water fractional_saturation_of_oxygen_in_sea_water sea_water_acidity sea_water_salinity specific_conductance sea_water_temperature sea_water_turbidity ")

File type: (more info) .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. .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). .jsonlCSV - View a UTF-8 JSON Lines CSV file (missing value = '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 1.3322646e+9, 1.6705152e+9;
    String axis "T";
    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";
  }
  station {
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "Station";
  }
  name {
    String ioos_category "Identifier";
    String long_name "Name";
  }
  reserveName {
    String ioos_category "Identifier";
    String long_name "Reserve";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 43.0524, 43.0524;
    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 -70.91181, -70.91181;
    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";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 actual_range -0.09, 4.12;
    String axis "Z";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  oxygen_concentration_in_sea_water {
    Float32 actual_range -3.7, 39.0;
    String ioos_category "Dissolved O2";
    String long_name "Oxygen Concentration In Sea Water";
    String units "mg/L";
  }
  fractional_saturation_of_oxygen_in_sea_water {
    Float32 actual_range -46.8, 500.0;
    Float64 colorBarMaximum 1.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Dissolved O2";
    String long_name "Fractional Saturation Of Oxygen In Sea Water";
    String standard_name "fractional_saturation_of_oxygen_in_sea_water";
    String units "percent";
  }
  sea_water_acidity {
    Float32 actual_range 0.0, 11.1;
    String ioos_category "Unknown";
    String long_name "Sea Water Acidity";
    String units "pH";
  }
  sea_water_salinity {
    Float32 actual_range 0.0, 949.9;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String ioos_category "Salinity";
    String long_name "Sea Water Salinity";
    String standard_name "sea_water_salinity";
    String units "psu";
  }
  specific_conductance {
    Float32 actual_range 0.0, 559.6;
    Float64 colorBarMaximum 40.0;
    Float64 colorBarMinimum 30.0;
    String ioos_category "Salinity";
    String long_name "Sea Water Electrical Conductivity";
    String standard_name "sea_water_electrical_conductivity";
    String units "msiemens/cm";
  }
  sea_water_temperature {
    Float32 actual_range -1.1, 29.6;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Temperature";
    String long_name "Sea Water Temperature";
    String standard_name "sea_water_temperature";
    String units "celsius";
  }
  sea_water_turbidity {
    Float32 actual_range -200.0, 15054.0;
    String ioos_category "Unknown";
    String long_name "Sea Water Turbidity";
    String units "NTU";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station, longitude, latitude";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_name "National Estuarine Reserve Research System (NERRS)";
    String creator_type "institution";
    String creator_url "http://cdmo.baruch.sc.edu/";
    String defaultGraphQuery "time,sea_water_salinity&time%3E=max(time)-7days&.draw=lines&.color=0x000000";
    Float64 Easternmost_Easting -70.91181;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 43.0524;
    Float64 geospatial_lat_min 43.0524;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -70.91181;
    Float64 geospatial_lon_min -70.91181;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 4.12;
    Float64 geospatial_vertical_min -0.09;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2024-12-26T11:01:01Z (local files)
2024-12-26T11:01:01Z http://www.neracoos.org/erddap/tabledap/GRBSQWQ_NERRS.html";
    String infoUrl "http://cdmo.baruch.sc.edu/get/realTime.cfm?stationCode=GRBSQWQ";
    String institution "NERRS";
    String keywords "acidity, bay, chemistry, concentration, conductivity, data, density, depth, dissolved, dissolved o2, Earth Science > Oceans > Ocean Chemistry > Oxygen, Earth Science > Oceans > Ocean Temperature > Water Temperature, Earth Science > Oceans > Salinity/Density > Conductivity, Earth Science > Oceans > Salinity/Density > Salinity, electrical, estuarine, fractional, fractional_saturation_of_oxygen_in_sea_water, great, identifier, latitude, longitude, name, national, nerrs, O2, ocean, oceans, oxygen, oxygen_concentration_in_sea_water, oyster, research, reserve, riever, salinity, saturation, sea, sea_water_acidity, sea_water_electrical_conductivity, sea_water_salinity, sea_water_temperature, sea_water_turbidity, seawater, specific_conductance, station, system, temperature, time, turbidity, water";
    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 43.0524;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 43.0524;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String subsetVariables "station, name, latitude, longitude";
    String summary "Great Bay, NH. National Estuarine Reserve Research System (NERRS) Water Quality Station GRBSQWQ";
    String time_coverage_end "2022-12-08T16:00:00Z";
    String time_coverage_start "2012-03-20T17:30:00Z";
    String title "Great Bay,NH. Squamscott River WQ station";
    Float64 Westernmost_Easting -70.91181;
  }
}

 

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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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