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Dataset Title:	WCO - R.V. Plymouth Quest Underway Data
Institution:	Plymouth Marine Laboratory   (Dataset ID: Underway_1237_711d_c532)
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Files | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum	Maximum
time (Date (UTC), UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2021-04-28T08:56:10Z	2024-08-21T13:27:30Z
latitude (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		49.63452	50.367596
longitude (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-5.337072	-2.94362
Cor_Wind_Dir (Wind From Direction, degrees)	!= =~ <= >= = < >		!= =~ <= >= = < >		0	359
Cor_Wind_speed (Wind Speed, m/s)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	32.27
Pressure (Pressure (h Pa), h Pa)	!= =~ <= >= = < >		!= =~ <= >= = < >		994.6	1029.9
Humidity (Humidity (%), %)	!= =~ <= >= = < >		!= =~ <= >= = < >		52	100
Air_T (Air T (deg C), degC)	!= =~ <= >= = < >		!= =~ <= >= = < >		6.0	23.6
Dew_T (Dew T (deg C), degC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2.8	20.7
Chlor (Chlor (mg/m3), mg/m3)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0484	6.0984
CDOM (QSU)	!= =~ <= >= = < >		!= =~ <= >= = < >		-0.0899	8.091
Turb (Turb (NTU), NTU)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.2257	17.6046
Sea_Temperature (Sea Temperature (deg C), degC)	!= =~ <= >= = < >		!= =~ <= >= = < >		10.0443	22.3081
Conductivity (s/m)	!= =~ <= >= = < >		!= =~ <= >= = < >		1.90003	4.91487
Salinity (PSU)	!= =~ <= >= = < >		!= =~ <= >= = < >		15.7732	35.3268
Inlet_Temperature (Inlet Temperature (deg C), degC)	!= =~ <= >= = < >		!= =~ <= >= = < >		10.04	21.458
Transmittance (Transmittance (%), %)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	0.8509356575237119
Oxygen (Oxygen (u M), uM)	!= =~ <= >= = < >		!= =~ <= >= = < >		141.82	352.66
PAR (S), uE/m2/s)	!= =~ <= >= = < >		!= =~ <= >= = < >		-12.739999999999998	4429.1

 

Server-side Functions

distinct()

orderBy orderByDescending orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean orderBySum (" time latitude longitude Cor_Wind_Dir Cor_Wind_speed Pressure Humidity Air_T Dew_T Chlor CDOM Turb Sea_Temperature Conductivity Salinity Inlet_Temperature Transmittance Oxygen PAR time latitude longitude Cor_Wind_Dir Cor_Wind_speed Pressure Humidity Air_T Dew_T Chlor CDOM Turb Sea_Temperature Conductivity Salinity Inlet_Temperature Transmittance Oxygen PAR time latitude longitude Cor_Wind_Dir Cor_Wind_speed Pressure Humidity Air_T Dew_T Chlor CDOM Turb Sea_Temperature Conductivity Salinity Inlet_Temperature Transmittance Oxygen PAR time latitude longitude Cor_Wind_Dir Cor_Wind_speed Pressure Humidity Air_T Dew_T Chlor CDOM Turb Sea_Temperature Conductivity Salinity Inlet_Temperature Transmittance Oxygen PAR time latitude longitude Cor_Wind_Dir Cor_Wind_speed Pressure Humidity Air_T Dew_T Chlor CDOM Turb Sea_Temperature Conductivity Salinity Inlet_Temperature Transmittance Oxygen PAR ")

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 1.61960017e+9, 1.72424685e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Date (UTC)";
    String source_name "Date (UTC)";
    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 {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 49.63452, 50.367596;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String source_name "Lat (degN)";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -5.337072, -2.94362;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String source_name "Lon (degE)";
    String standard_name "longitude";
    String units "degrees_east";
  }
  Cor_Wind_Dir {
    Int16 _FillValue 32767;
    Int16 actual_range 0, 359;
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Wind";
    String long_name "Wind From Direction";
    String standard_name "wind_from_direction";
    String units "degrees";
  }
  Cor_Wind_speed {
    Float32 actual_range 0.0, 32.27;
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Wind";
    String long_name "Wind Speed";
    String standard_name "wind_speed";
    String units "m/s";
  }
  Pressure {
    Float32 actual_range 994.6, 1029.9;
    String ioos_category "Pressure";
    String long_name "Pressure (h Pa)";
    String units "h Pa";
  }
  Humidity {
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 52, 100;
    String ioos_category "Meteorology";
    String long_name "Humidity (%)";
    String units "%";
  }
  Air_T {
    Float32 actual_range 6.0, 23.6;
    String ioos_category "Unknown";
    String long_name "Air T (deg C)";
    String units "degC";
  }
  Dew_T {
    Float32 actual_range 2.8, 20.7;
    String ioos_category "Unknown";
    String long_name "Dew T (deg C)";
    String units "degC";
  }
  Chlor {
    Float32 actual_range 0.0484, 6.0984;
    String ioos_category "Ocean Color";
    String long_name "Chlor (mg/m3)";
    String units "mg/m3";
  }
  CDOM {
    Float64 actual_range -0.0899, 8.091;
    String ioos_category "Ocean Color";
    String long_name "Chromophoric Dissolved Organic Material";
    String units "QSU";
  }
  Turb {
    Float64 actual_range 0.2257, 17.6046;
    String ioos_category "Unknown";
    String long_name "Turb (NTU)";
    String units "NTU";
  }
  Sea_Temperature {
    Float32 actual_range 10.0443, 22.3081;
    String ioos_category "Temperature";
    String long_name "Sea Temperature (deg C)";
    String units "degC";
  }
  Conductivity {
    Float32 actual_range 1.90003, 4.91487;
    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 "s/m";
  }
  Salinity {
    Float32 actual_range 15.7732, 35.3268;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String ioos_category "Salinity";
    String long_name "Sea Water Practical Salinity";
    String standard_name "sea_water_practical_salinity";
    String units "PSU";
  }
  Inlet_Temperature {
    Float32 actual_range 10.04, 21.458;
    String ioos_category "Temperature";
    String long_name "Inlet Temperature (deg C)";
    String units "degC";
  }
  Transmittance {
    Float64 actual_range 0.0, 0.8509356575237119;
    String ioos_category "Unknown";
    String long_name "Transmittance (%)";
    String units "%";
  }
  Oxygen {
    Float32 actual_range 141.82, 352.66;
    String ioos_category "Dissolved O2";
    String long_name "Oxygen (u M)";
    String units "uM";
  }
  PAR {
    Float64 actual_range -12.739999999999998, 4429.1;
    String ioos_category "Unknown";
    String long_name "S)";
    String units "uE/m2/s";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Other";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_name "Plymouth Marine Laboratory";
    String creator_url "https://www.westernchannelobservatory.org.uk/quest_underway.php";
    Float64 Easternmost_Easting -2.94362;
    Float64 geospatial_lat_max 50.367596;
    Float64 geospatial_lat_min 49.63452;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -2.94362;
    Float64 geospatial_lon_min -5.337072;
    String geospatial_lon_units "degrees_east";
    String history 
"2025-12-06T04:58:43Z (local files)
2025-12-06T04:58:43Z https://erddap.eofrom.space/erddap/tabledap/Underway_1237_711d_c532.html";
    String infoUrl "https://www.westernchannelobservatory.org.uk/quest_underway.php";
    String institution "Plymouth Marine Laboratory";
    String keywords "air, Air_T, atmosphere, atmospheric, available, CDOM, chlor, chlorophyll, chromophoric, color, colored, conductivity, Cor_Wind_Dir, Cor_Wind_speed, data, date, density, dew, Dew_T, direction, dissolved, dissolved o2, earth, Earth Science > Atmosphere > Atmospheric Winds > Surface Winds, Earth Science > Oceans > Salinity/Density > Conductivity, Earth Science > Oceans > Salinity/Density > Salinity, electrical, humidity, inlet, Inlet_Temperature, laboratory, latitude, longitude, marine, material, matter, meteorology, mg/m3, nephelometric, ntu, O2, ocean, ocean color, oceans, organic, oxygen, PAR, percent, photosynthetically, plymouth, practical, pressure, quest, r.v, radiation, salinity, science, sea, Sea_Temperature, sea_water_electrical_conductivity, sea_water_practical_salinity, seawater, speed, surface, temperature, time, transmittance, turb, turbidity, u, underway, units, water, wind, wind_from_direction, wind_speed, winds";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "OGL - https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/";
    Float64 Northernmost_Northing 50.367596;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 49.63452;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "The R.V. Plymouth Quest is fitted with an underway suite of sensors, which continuously sample from the vessels non-toxic underway water supply.";
    String testOutOfDate "now-43days";
    String time_coverage_end "2024-08-21T13:27:30Z";
    String time_coverage_start "2021-04-28T08:56:10Z";
    String title "WCO - R.V. Plymouth Quest Underway Data";
    Float64 Westernmost_Easting -5.337072;
  }
}

 

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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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