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Dataset Title:	ESTOC CTD Data (at 80m) 2016
Institution:	Oceanic Platform of the Canary Islands (Dataset ID: OS_ESTOC_20161011-20161207_D_CNDC-PSAL-TEMP_80m)
Range:	longitude = -15.608 to -15.608°E, latitude = 29.163 to 29.163°N, depth = 80.0 to 80.0m, time = 2016-10-11T15:00:00Z to 2016-12-07T12:14:03Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Data Access Form

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    UInt32 _ChunkSizes 5462;
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.476198e+9, 1.481112843e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "time of measurements";
    String monotonic "increasing";
    String sdn_parameter_name "Elapsed time relative to 1970-01-01T00:00:00Z";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/ELTMEP01/";
    String sdn_parameter_urn "SDN:P01::ELTMEP01";
    String sdn_uom_name "Seconds";
    String sdn_uom_uri "https://vocab.nerc.ac.uk/collection/P06/current/UTBB/";
    String sdn_uom_urn "SDN:P06::UTBB";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
    String variable_type "coordinate";
  }
  depth {
    UInt32 _ChunkSizes 5462;
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float64 _FillValue -9999.99;
    Float64 actual_range 80.0, 80.0;
    String axis "Z";
    String ioos_category "Location";
    String long_name "depth of measurements";
    String positive "down";
    String sdn_parameter_name "Depth (spatial coordinate) relative to water surface in the water body";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/ADEPZZ01";
    String sdn_parameter_urn "SDN:P01::ADEPZZ01";
    String sdn_uom_name "Metres";
    String sdn_uom_uri "https://vocab.nerc.ac.uk/collection/P06/current/ULAA/";
    String sdn_uom_urn "SDN:P06::ULAA";
    String standard_name "depth";
    String units "m";
    String variable_type "coordinate";
  }
  latitude {
    UInt32 _ChunkSizes 5462;
    String _CoordinateAxisType "Lat";
    Float64 _FillValue -9999.99;
    Float64 actual_range 29.163, 29.163;
    String axis "Y";
    String ioos_category "Location";
    String long_name "latitude of measurements";
    String sdn_parameter_name "Latitude north";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/ALATZZ01";
    String sdn_parameter_urn "SDN:P01::ALATZZ01";
    String sdn_uom_name "Degrees";
    String sdn_uom_uri "https://vocab.nerc.ac.uk/collection/P06/current/UAAA/";
    String sdn_uom_urn "SDN:P06::UAAA";
    String standard_name "latitude";
    String units "degrees_north";
    String variable_type "coordinate";
  }
  longitude {
    UInt32 _ChunkSizes 5462;
    String _CoordinateAxisType "Lon";
    Float64 _FillValue -9999.99;
    Float64 actual_range -15.608, -15.608;
    String axis "X";
    String ioos_category "Location";
    String long_name "longitude of measurements";
    String sdn_parameter_name "Longitude east";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/ALONZZ01";
    String sdn_parameter_urn "SDN:P01::ALONZZ01";
    String sdn_uom_name "Degrees";
    String sdn_uom_uri "https://vocab.nerc.ac.uk/collection/P06/current/UAAA/";
    String sdn_uom_urn "SDN:P06::UAAA";
    String standard_name "longitude";
    String units "degrees_east";
    String variable_type "coordinate";
  }
  sensor_id {
    String long_name "Identifier of the sensor that took the measurement";
    String sdn_parameter_name "Name of sampling instrument";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/NMSPINST/";
    String sdn_parameter_urn "SDN:P01::NMSPINST";
    String variable_type "coordinate";
  }
  platform_id {
    String cf_role "timeseries_id";
    String long_name "Platform where the sensor was deployed";
    String sdn_parameter_name "Name of sampling platform";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/NMSPPF01/";
    String sdn_parameter_urn "SDN:P01::NMSPPF01";
    String standard_name "platform_id";
    String variable_type "coordinate";
  }
  TEMP {
    UInt32 _ChunkSizes 5462;
    Float64 _FillValue -9999.99;
    Float64 actual_range 16.8608, 21.6692;
    String ancillary_variables "TEMP_QC";
    String coordinates "time latitude longitude depth sensor_id platform_id";
    String long_name "Sea water temperature";
    String sdn_parameter_name "Temperature of the water body by CTD or STD";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/TEMPST01";
    String sdn_parameter_urn "SDN:P01::TEMPST01";
    String sdn_uom_name "Degrees Celsius";
    String sdn_uom_uri "https://vocab.nerc.ac.uk/collection/P06/current/UPAA/";
    String sdn_uom_urn "SDN:P06::UPAA";
    String standard_name "sea_water_temperature";
    String units "degC";
    String variable_type "environmental";
  }
  CNDC {
    UInt32 _ChunkSizes 5462;
    Float64 _FillValue -9999.99;
    Float64 actual_range 1.0e-4, 4.887377;
    String ancillary_variables "CNDC_QC";
    String coordinates "time latitude longitude depth sensor_id platform_id";
    String long_name "sea water electrical conductivity";
    String sdn_parameter_name "Electrical conductivity of the water body by CTD";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/CNDCST01/";
    String sdn_parameter_urn "SDN:P01::CNDCST01";
    String sdn_uom_name "Siemens per metre";
    String sdn_uom_uri "https://vocab.nerc.ac.uk/collection/P06/current/UECA/";
    String sdn_uom_urn "SDN:P06::UECA";
    String standard_name "sea_water_electrical_conductivity";
    String units "S/m";
    String variable_type "environmental";
  }
  PSAL {
    UInt32 _ChunkSizes 5462;
    Float64 _FillValue -9999.99;
    Float64 actual_range 0.0095, 36.705;
    String ancillary_variables "PSAL_QC";
    String coordinates "time latitude longitude depth sensor_id platform_id";
    String long_name "sea water salinity";
    String sdn_parameter_name "Practical salinity of the water body by CTD and computation using UNESCO 1983 algorithm";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/PSALST01/";
    String sdn_parameter_urn "SDN:P01::PSALST01";
    String sdn_uom_name "Dimensionless";
    String sdn_uom_uri "https://vocab.nerc.ac.uk/collection/P06/current/UUUU/";
    String sdn_uom_urn "SDN:P06::UUUU";
    String standard_name "sea_water_salinity";
    String units "Dmnless";
    String variable_type "environmental";
  }
  TEMP_QC {
    UInt32 _ChunkSizes 5462;
    Byte _FillValue -1;
    String _Unsigned "true";
    Byte actual_range 0, 0;
    String conventions "OceanSITES QC Flags";
    String flag_meanings "unknown good_data probably_good_data potentially_correctable_bad_data bad_data nominal_value interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 7, 8, 9;
    String long_name "Sea water temperature quality control flags";
    String variable_type "quality_control";
  }
  CNDC_QC {
    UInt32 _ChunkSizes 5462;
    Byte _FillValue -1;
    String _Unsigned "true";
    Byte actual_range 0, 0;
    String conventions "OceanSITES QC Flags";
    String flag_meanings "unknown good_data probably_good_data potentially_correctable_bad_data bad_data nominal_value interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 7, 8, 9;
    String long_name "sea water electrical conductivity quality control flags";
    String variable_type "quality_control";
  }
  PSAL_QC {
    UInt32 _ChunkSizes 5462;
    Byte _FillValue -1;
    String _Unsigned "true";
    Byte actual_range 0, 0;
    String conventions "OceanSITES QC Flags";
    String flag_meanings "unknown good_data probably_good_data potentially_correctable_bad_data bad_data nominal_value interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 7, 8, 9;
    String long_name "sea water salinity quality control flags";
    String variable_type "quality_control";
  }
  seabirdscientific_SN14406 {
    String long_name "Sea-Bird SBE 37 MicroCat IMP-CT-ODO (submersible) CTD sensor";
    String sdn_instrument_name "Sea-Bird SBE 37 MicroCat IMP-CT-ODO (submersible) CTD sensor";
    String sdn_instrument_uri "https://vocab.nerc.ac.uk/collection/L22/current/TOOL1545/";
    String sdn_instrument_urn "SDN:L22::TOOL1545";
    String sensor_id "seabirdscientific_SN14406";
    String sensor_manufacturer_name "Sea-Bird Scientific";
    String sensor_manufacturer_uri "https://vocab.nerc.ac.uk/collection/L35/current/MAN0013/";
    String sensor_manufacturer_urn "SDN:L35::MAN0013";
    String sensor_mount "mounted_on_mooring_line";
    String sensor_SeaVoX_L22_code "SDN:L22::TOOL1545";
    String sensor_serial_number "14406";
    String sensor_type_name "CTD";
    String sensor_type_uri "https://vocab.nerc.ac.uk/collection/L05/current/130/";
    String sensor_type_urn "SDN:L05::130";
    String variable_type "sensor";
  }
  ESTOC_ODAS_Mooring_Platform {
    String emso_platform_name "ODAS Mooring Platform";
    String emso_platform_uri "https://w3id.org/earthsemantics/OSO#ODAS_Mooring_Platform";
    Float64 latitude 29.163;
    String long_name "ESTOC ODAS Mooring Platform";
    Float64 longitude -15.608;
    String platform_id "ESTOC_ODAS_Mooring_Platform";
    String platform_type_name "mooring";
    String platform_type_uri "https://vocab.nerc.ac.uk/collection/L06/current/48/";
    String platform_type_urn "SDN:L06::48";
    String variable_type "platform";
  }
 }
  NC_GLOBAL {
    String area "North Atlantic Ocean";
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "platform_id,sensor_id,latitude,longitude,depth";
    String citation "These data were collected and made freely available by PLOCAN through international and national projects that contribute to ESTOC observatory.";
    String comment "no comment";
    String contributor_types "DataCurator DataCurator";
    String contributors "Andres Cianca, Tania Morales";
    String Conventions "OceanSITES EMSO, NCCSV-1.2";
    String data_assembly_center "PLOCAN";
    String data_mode "D";
    String data_type "OceanSITES time-series data";
    String date_created "2021-08-24T16:00:00Z";
    String date_modified "2022-09-27T09:56:13Z";
    Float64 Easternmost_Easting -15.608;
    String emso_regional_facility_name "Canarias";
    String emso_regional_facility_uri "https://w3id.org/earthsemantics/OSO#Canarias";
    String emso_site_name "ESTOC";
    String emso_site_uri "https://w3id.org/earthsemantics/OSO#ESTOC";
    String featureType "TimeSeries";
    String format_version "1.4";
    Float64 geospatial_lat_max 29.163;
    Float64 geospatial_lat_min 29.163;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -15.608;
    Float64 geospatial_lon_min -15.608;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 80.0;
    Float64 geospatial_vertical_min 80.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2026-01-27T01:52:03Z (local files)
2026-01-27T01:52:03Z http://172.17.4.94:8080/tabledap/OS_ESTOC_20161011-20161207_D_CNDC-PSAL-TEMP_80m.das";
    String id "OS_ESTOC_201609_D_CTD-DO-FIX03-80m";
    String infoUrl "https://edmo.seadatanet.org/report/3497";
    String institution "Oceanic Platform of the Canary Islands";
    String institution_edmo_code "3497";
    String institution_edmo_uri "https://edmo.seadatanet.org/report/3497";
    String institution_ror_uri "https://ror.org/04avat194";
    String keywords "CNDC, DEPTH, DO, SSS, SST";
    String keywords_vocabulary "https://vocab.nerc.ac.uk/collection/P02/current/";
    String license "CC-BY-4.0";
    String license_uri "https://spdx.org/licenses/CC-BY-4.0";
    String naming_authority "OceanSITES";
    String netcdf_version "4.3.2";
    String network "FixO3 ";
    Float64 Northernmost_Northing 29.163;
    String platform_code "ESTOC_PLOCAN-1";
    String principal_investigator "Dr. Octavio Llinas";
    String principal_investigator_email "direccion@plocan.eu";
    String projects "FixO3";
    String publisher_email "observatory@plocan.eu";
    String publisher_name "PLOCAN- Tania Morales and Andres Cianca";
    String publisher_url "http://siboy.plocan.eu/buoy/ESTOC";
    String site_code "ESTOC";
    String source "mooring";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 29.163;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String subsetVariables "platform_id,sensor_id,depth,TEMP_QC,CNDC_QC,PSAL_QC";
    String summary "Sea water data collected at ESTOC mooring at 29.163 degrees North at 15.608 degrees W";
    String time_coverage_duration "P68D";
    String time_coverage_end "2016-12-07T12:14:03Z";
    String time_coverage_resolution "PT15min.";
    String time_coverage_start "2016-10-11T15:00:00Z";
    String title "ESTOC CTD Data (at 80m) 2016";
    String update_interval "void";
    Float64 Westernmost_Easting -15.608;
    String wmo_platform_code "13471";
  }
}

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 (external link)

Data Access Protocol (DAP) (external link)

and its selection constraints (external link)

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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