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Dataset Title:	EGIM Aanderaa Oxygen Data at 200m Jun-Oct 2022 in front of Cape St. Vincent, Sagres, PT
Institution:	Portuguese Institute for Sea and Atmosphere(IPMA), Algarve Centre of Marine Sciences (CCMAR) (Dataset ID: IBMA-CSV_EGIM_DO_D01_20220531_to_20221006_v002)
Range:	longitude = -8.927083 to -8.927083°E, latitude = 36.84549 to 36.84549°N, time = 2022-05-31T23:15:01Z to 2022-10-06T14:30:01Z
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 {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.654038901e+9, 1.665066601e+9;
    Float64 ancillary_variables NaN;
    String axis "T";
    String calendar "proleptic_gregorian";
    Float64 comment NaN;
    String ioos_category "Time";
    String long_name "Time";
    String sdn_P02_urn "SDN:P02::AYMD";
    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";
  }
  POSITION_QC {
    Float32 _FillValue -9999.9;
    Float32 actual_range 7.0, 7.0;
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum 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";
    String flag_values "0, 1, 2, 3, 4, 7, 8, 9";
    String ioos_category "Quality";
    String long_name "quality flag for LATITUDE and LONGITUDE";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 _FillValue -9999.9;
    Float32 actual_range 36.84549, 36.84549;
    String ancillary_variables "POSITION_QC";
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    Float64 comment NaN;
    String ioos_category "Location";
    String long_name "Latitude of each location";
    String sdn_P02_urn "SDN:P02::ALAT";
    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 north";
    String sdn_uom_uri "https://vocab.nerc.ac.uk/collection/P06/current/DEGN/";
    String sdn_uom_urn "SDN:P06::DEGN";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 _FillValue -9999.9;
    Float32 actual_range -8.927083, -8.927083;
    String ancillary_variables "POSITION_QC";
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    Float64 comment NaN;
    String ioos_category "Location";
    String long_name "Longitude of each location";
    String sdn_P02_urn "SDN:P02::ALAT";
    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 east";
    String sdn_uom_uri "https://vocab.nerc.ac.uk/collection/P06/current/DEGE/";
    String sdn_uom_urn "SDN:P06::DEGE";
    String standard_name "longitude";
    String units "degrees_east";
  }
  OSAT {
    Float64 _FillValue -9999.9;
    Float64 actual_range 64.028, 80.688;
    String ancillary_variables "OSAT_QC";
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String comment "Sensor failed after 2022-08-01";
    String coordinates "TIME;DEPTH;LATITUDE;LONGITUDE";
    String ioos_category "Dissolved O2";
    String long_name "Oxygen saturation";
    String QC_indicator "good data";
    String sdn_P02_urn "SDN:P02::DOXY";
    String sdn_parameter_name "Saturation of oxygen {O2 CAS 7782-44-7} in the water body [dissolved plus reactive particulate phase]";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/OXYSZZ01/";
    String sdn_parameter_urn "SDN:P01::OXYSZZ01";
    String sdn_uom_name "Percent";
    String sdn_uom_uri "https://vocab.nerc.ac.uk/collection/P06/current/UPCT/";
    String sdn_uom_urn "SDN:P06::UPCT";
    Int32 sensor_depth 200;
    String sensor_manufacturer "Aanderaa";
    String sensor_manufacturer_uri "https://vocab.nerc.ac.uk/collection/L35/current/MAN0007/";
    String sensor_manufacturer_urn "SDN:L35::MAN0007";
    String sensor_model "Aanderaa Oxygen Optode 4831DW";
    String sensor_mount "mounted_on_fixed_structure";
    String sensor_orientation "horizontal";
    String sensor_reference "https://www.aanderaa.com/media/pdfs/d403_aanderaa_oxygen_sensor_4831_4831f.pdf";
    Float64 sensor_SeaVoX_L22_code NaN;
    Int32 sensor_serial_number 920;
    String sensor_type_name "dissolved gas sensors";
    String sensor_type_uri "https://vocab.nerc.ac.uk/collection/L05/current/351/";
    String standard_name "fractional_saturation_of_oxygen_in_sea_water";
    String units "Percent";
  }
  DOXY {
    Float64 _FillValue -9999.9;
    Float64 actual_range 210.607, 257.346;
    String ancillary_variables "DOXY_QC";
    Float64 colorBarMaximum 500.0;
    Float64 colorBarMinimum 0.0;
    String comment "Sensor failed after 2022-08-01";
    String coordinates "TIME;DEPTH;LATITUDE;LONGITUDE";
    String ioos_category "Dissolved O2";
    String long_name "Dissolved oxygen";
    String QC_indicator "good data";
    String sdn_P02_urn "SDN:P02::DOXY";
    String sdn_parameter_name "Concentration of oxygen {O2 CAS 7782-44-7} per unit volume of the water body [dissolved plus reactive particulate phase]";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/DOXYZZXX/";
    String sdn_parameter_urn "SDN:P01::DOXYZZXX";
    String sdn_uom_name "Micromoles per litre";
    String sdn_uom_uri "https://vocab.nerc.ac.uk/collection/P06/current/UPOX/";
    String sdn_uom_urn "SDN:P06::UPOX";
    Int32 sensor_depth 200;
    String sensor_manufacturer "Aanderaa";
    String sensor_manufacturer_uri "https://vocab.nerc.ac.uk/collection/L35/current/MAN0007/";
    String sensor_manufacturer_urn "SDN:L35::MAN0007";
    String sensor_model "Aanderaa Oxygen Optode 4831DW";
    String sensor_mount "mounted_on_fixed_structure";
    String sensor_orientation "horizontal";
    String sensor_reference "https://www.aanderaa.com/media/pdfs/d403_aanderaa_oxygen_sensor_4831_4831f.pdf";
    Float64 sensor_SeaVoX_L22_code NaN;
    Int32 sensor_serial_number 920;
    String sensor_type_name "dissolved gas sensors";
    String sensor_type_uri "https://vocab.nerc.ac.uk/collection/L05/current/351/";
    String standard_name "mole_concentration_of_dissolved_molecular_oxygen_in_sea_water";
    String units "Micromoles per litre";
  }
  OSAT_QC {
    Float64 _FillValue -9999.9;
    Float64 actual_range 1.0, 1.0;
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum 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";
    String flag_values "0, 1, 2, 3, 4, 7, 8, 9";
    String ioos_category "Quality";
    String long_name "quality flag for OSAT";
  }
  DOXY_QC {
    Float64 _FillValue -9999.9;
    Float64 actual_range 1.0, 1.0;
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum 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";
    String flag_values "0, 1, 2, 3, 4, 7, 8, 9";
    String ioos_category "Quality";
    String long_name "quality flag for DOXY";
  }
  TEMP {
    Float64 _FillValue -9999.9;
    Float64 actual_range 12.381, 14.427;
    String ancillary_variables "TEMP_QC";
    Float64 colorBarMaximum 500.0;
    Float64 colorBarMinimum 0.0;
    String comment "TEMP_QC";
    String coordinates "TIME;DEPTH;LATITUDE;LONGITUDE";
    String ioos_category "Temperature";
    String long_name "Sea temperature";
    String QC_indicator "good data";
    String reference_scale "ITS-90";
    String sdn_P02_urn "SDN:P02::TEMP";
    String sdn_parameter_name "Temperature of the water body";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/TEMPPR01/";
    String sdn_parameter_urn "SDN:P01::TEMPPR01";
    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";
    Int32 sensor_depth 200;
    String sensor_manufacturer "Aanderaa";
    String sensor_manufacturer_uri "https://vocab.nerc.ac.uk/collection/L35/current/MAN0007/";
    String sensor_manufacturer_urn "SDN:L35::MAN0007";
    String sensor_model "Aanderaa Oxygen Optode 4831DW";
    String sensor_mount "mounted_on_fixed_structure";
    String sensor_orientation "upward";
    String sensor_reference "https://www.aanderaa.com/media/pdfs/d403_aanderaa_oxygen_sensor_4831_4831f.pdf";
    Float64 sensor_SeaVoX_L22_code NaN;
    Int32 sensor_serial_number 920;
    String sensor_type_name "water temperature sensor";
    String sensor_type_uri "https://vocab.nerc.ac.uk/collection/L05/current/134/";
    String standard_name "temperature_of_sensor_for_oxygen_in_sea_water";
    String units "degree_C";
  }
  TEMP_QC {
    Float64 _FillValue -9999.9;
    Float64 actual_range 1.0, 1.0;
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum 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";
    String flag_values "0, 1, 2, 3, 4, 7, 8, 9";
    String ioos_category "Quality";
    String long_name "quality flag for TEMP";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Point";
    String Conventions "OceanSITES v1.4;SeaDataNet_1.0;COARDS; CF-1.6; CMEMS INSTAC v3.2, ACDD-1.3, NCCSV-1.1";
    String creator_name "EMSO,IPMA,CCMAR";
    String creator_url "https://www.emso.eu/";
    String data_mode "D";
    String data_type "OceanSITES time-series data";
    String date_created "2022-10-13T12:00:00Z";
    String doi "https://doi.org/10.17882/95468";
    Float64 Easternmost_Easting -8.927083;
    String emso_facility "Iberian Margin";
    String featureType "Point";
    Float64 format_version 1.4;
    Float64 geospatial_lat_max 36.84549;
    Float64 geospatial_lat_min 36.84549;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -8.927083;
    Float64 geospatial_lon_min -8.927083;
    String geospatial_lon_units "degrees_east";
    Int32 geospatial_vertical_max 191;
    Int32 geospatial_vertical_min 188;
    String history 
"subsurface mooring
2025-10-25T14:42:27Z (local files)
2025-10-25T14:42:27Z https://erddap.emso.eu/tabledap/IBMA-CSV_EGIM_DO_D01_20220531_to_20221006_v002.das";
    String infoUrl "https://www.ipma.pt/";
    String insitution_ror_uri "https://ror.org/01sp7nd78; https://ror.org/00me37y22";
    String institution "Portuguese Institute for Sea and Atmosphere(IPMA), Algarve Centre of Marine Sciences (CCMAR)";
    String institution_edmo_code "3288; 2516";
    String institution_edmo_uri "https://edmo.seadatanet.org/report/3288; https://edmo.seadatanet.org/report/2516";
    String keywords "cape, chemistry, cndc, column, concentration, conductivity, data, dissolved, dissolved o2, doxy, DOXY_QC, earth, Earth Science > Oceans > Ocean Chemistry > Oxygen, egim, electrical, flag, fractional, fractional_saturation_of_oxygen_in_sea_water, latitude, longitude, material, mole, mole_concentration_of_dissolved_molecular_oxygen_in_sea_water, molecular, O2, ocean, oceans, osat, OSAT_QC, oxygen, parameters, particulate, POSITION_QC, psal, quality, sagres, salinity, saturation, science, sea, seadatanet, seawater, sensor, sound, suspended, svel, TEMP, TEMP_QC, temperature, temperature_of_sensor_for_oxygen_in_sea_water, time, tsed, until, velocity, vincent, water, wc_cond, wc_o2, wc_sal, wc_soundvel, wc_spm, wc_temp";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "CC-BY-4.0";
    String license_uri "https://spdx.org/licenses/CC-BY-4.0";
    String network "EMSO-ERIC";
    Float64 Northernmost_Northing 36.84549;
    String platform_code "EGIM";
    String principal_investigator "Paulo Relvas";
    String principal_investigator_email "prelvas@ualg.pt";
    String project "EMSO-PT";
    String site_code "IbMa-CSV";
    String source "subsurface mooring";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 36.84549;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String subsetVariables "POSITION_QC, latitude, longitude, OSAT_QC, DOXY_QC, TEMP_QC";
    String summary "The dataset contains water column (bottom) parameters acquired through set of sensors mounted on a fixe platform (EGIM): Aanderaa 4831dw (optical dissolved oxygen). Sampling period is:15 minutes. Measured channels: Temperature, Dissolved O2 concentration.Derived channels: Dissolved O2 saturation";
    String time_coverage_end "2022-10-06T14:30:01Z";
    String time_coverage_start "2022-05-31T23:15:01Z";
    String title "EGIM Aanderaa Oxygen Data at 200m Jun-Oct 2022 in front of Cape St. Vincent, Sagres, PT";
    String update_interval "void";
    Float64 Westernmost_Easting -8.927083;
  }
}

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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