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Dataset Title:	EMSO-Azores, SeaMoN East : CHEMINI total dissolved iron concentrations, 2018- 2019
Institution:	Ifremer IPGP (Dataset ID: EMSO-AZORES_CHEMINI_Total-Iron_2018-2019)
Range:	longitude = -32.16 to -32.16°E, latitude = 37.17 to 37.17°N, depth = 1695.0 to 1695.0m, time = 2018-08-23T18:30:00Z to 2018-12-31T23:45:00Z
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 1.535049e+9, 1.5462999e+9;
    String ancillary_variables "TIME_QC";
    String axis "T";
    Float64 colorBarMaximum 100000.0;
    Float64 colorBarMinimum -100000.0;
    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";
    Float64 valid_max 90000.0;
    Float64 valid_min -90000.0;
  }
  TIME_QC {
    Byte _FillValue -127;
    String _Unsigned "false";
    Byte actual_range 1, 1;
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum 0.0;
    String conventions "OceanSITES reference table 2";
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed value_below_detection nominal_value interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String ioos_category "Quality";
    String long_name "Time quality flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 _FillValue 9.96921e+36;
    Float32 actual_range 37.17, 37.17;
    String ancillary_variables "POSITION_QC";
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String coordinate_reference_frame "urn:ogc:def:crs:EPSG::4326";
    String ioos_category "Location";
    String long_name "Latitude of each location";
    String references "WGS84";
    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";
    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";
    Float32 valid_max 90.0;
    Float32 valid_min -90.0;
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 _FillValue 9.96921e+36;
    Float32 actual_range -32.16, -32.16;
    String ancillary_variables "POSITION_QC";
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String coordinate_reference_frame "urn:ogc:def:crs:EPSG::4326";
    String ioos_category "Location";
    String long_name "Longitude of each location";
    String references "WGS84";
    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";
    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";
    Float32 valid_max 180.0;
    Float32 valid_min -180.0;
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 _FillValue 9.96921e+36;
    Float32 actual_range 1695.0, 1695.0;
    String ancillary_variables "DEPH_QC";
    String axis "Z";
    String cf_role "timeseries_id";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String coordinate_reference_frame "urn:ogc:def:crs:EPSG::CRF 5831";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String references "sea_level";
    String sdn_P02_urn "SDN:P02::AHGT";
    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 sensor_manufacturer "Ifremer - Detection, Sensors and Metrology Laboratory";
    String sensor_manufacturer_uri "https://vocab.nerc.ac.uk/collection/L35/current/MAN0152/";
    String sensor_manufacturer_urn "SDN:L35::MAN0152";
    String sensor_model "Ifremer CHEMINI iron analyser";
    String sensor_mount "mounted_on_seafloor_structure";
    String sensor_orientation "horizontal";
    String sensor_reference "https://vocab.nerc.ac.uk/collection/L22/current/TOOL1665/";
    String sensor_SeaVoX_L22_code "SDN:L22::TOOL1665";
    String sensor_serial_number "CF2";
    String source_name "DEPH";
    String standard_name "depth";
    String units "m";
    Float32 valid_max 12000.0;
    Float32 valid_min -12000.0;
  }
  DEPH_QC {
    Byte _FillValue -127;
    String _Unsigned "false";
    Byte actual_range 7, 7;
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum 0.0;
    String conventions "OceanSITES reference table 2";
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed value_below_detection nominal_value interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String ioos_category "Quality";
    String long_name "Depth quality flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  TEMP {
    Float32 _FillValue 9.96921e+36;
    Float32 actual_range 4.627, 86.298;
    String ancillary_variables "TEMP_QC";
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Temperature";
    String long_name "Sea temperature";
    Float32 missing_value NaN;
    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";
    String sensor_manufacturer "Ifremer - Detection, Sensors and Metrology Laboratory";
    String sensor_manufacturer_uri "https://vocab.nerc.ac.uk/collection/L35/current/MAN0152/";
    String sensor_manufacturer_urn "SDN:L35::MAN0152";
    String sensor_model "Ifremer CHEMINI iron analyser";
    String sensor_mount "mounted_on_seafloor_structure";
    String sensor_orientation "horizontal";
    String sensor_reference "https://vocab.nerc.ac.uk/collection/L22/current/TOOL1665/";
    String sensor_SeaVoX_L22_code "SDN:L22::TOOL1665";
    String sensor_serial_number "CF2";
    String standard_name "sea_water_temperature";
    String units "degree_C";
    Float32 valid_max 40.0;
    Float32 valid_min -2.0;
  }
  TEMP_QC {
    Byte _FillValue -127;
    String _Unsigned "false";
    Byte actual_range 1, 1;
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum 0.0;
    String conventions "OceanSITES reference table 2";
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed value_below_detection nominal_value interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String ioos_category "Quality";
    String long_name "Sea temperature quality flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  IRON {
    Float32 _FillValue 9.96921e+36;
    Float32 actual_range 0.59, 55.21;
    String ancillary_variables "IRON_QC";
    String ioos_category "Unknown";
    String long_name "Total iron";
    Float32 missing_value NaN;
    String sdn_P02_urn "SDN:P02::MTWT";
    String sdn_parameter_name "Concentration of total iron {total_Fe CAS 7439-89-6} per unit volume of the water body [dissolved plus reactive particulate phase]";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/RWS00033";
    String sdn_parameter_urn "SDN:P01::RWS00033";
    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";
    String sensor_manufacturer "Ifremer - Detection, Sensors and Metrology Laboratory";
    String sensor_manufacturer_uri "https://vocab.nerc.ac.uk/collection/L35/current/MAN0152/";
    String sensor_manufacturer_urn "SDN:L35::MAN0152";
    String sensor_model "Ifremer CHEMINI iron analyser";
    String sensor_mount "mounted_on_seafloor_structure";
    String sensor_orientation "horizontal";
    String sensor_reference "https://vocab.nerc.ac.uk/collection/L22/current/TOOL1665/";
    String sensor_SeaVoX_L22_code "SDN:L22::TOOL1665";
    String sensor_serial_number "CF2";
    String standard_name "mole_concentration_of_dissolved_iron_in_sea_water";
    String units "umol/l";
  }
  IRON_QC {
    Byte _FillValue -127;
    String _Unsigned "false";
    Byte actual_range 1, 1;
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum 0.0;
    String conventions "OceanSITES reference table 2";
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed value_below_detection nominal_value interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String ioos_category "Quality";
    String long_name "Total iron quality flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "depth, longitude, latitude";
    String citation "These data were collected and made freely available by the author, PI, and collaborators in the frame of national activities (Coriolis)";
    String Conventions "CF-1.6, OceanSITES-1.3, COARDS, ACDD-1.3";
    String creator_name "Ifremer IPGP";
    String creator_type "institution";
    String creator_url "https://wwz.ifremer.fr/";
    String data_mode "P";
    String data_type "OceanSITES time-series data";
    String date_created "2023-08-30T14:19:21Z";
    String date_update "2023-08-30T14:19:21Z";
    String doi "10.17882/69883";
    Float64 Easternmost_Easting -32.16;
    String featureType "TimeSeries";
    String format_version "1.4";
    Float64 geospatial_lat_max 37.17;
    Float64 geospatial_lat_min 37.17;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -32.16;
    Float64 geospatial_lon_min -32.16;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 1695.0;
    Float64 geospatial_vertical_min 1695.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"NaN
2024-12-21T16:24:24Z (local files)
2024-12-21T16:24:24Z https://erddap.emso-fr.org/tabledap/EMSO-AZORES_CHEMINI_Total-Iron_2018-2019.das";
    String infoUrl "https://wwz.ifremer.fr/";
    String institution "Ifremer IPGP";
    String institution_edmo_code "1054;519";
    String institution_edmo_uri "https://edmo.seadatanet.org/report/1054;https://edmo.seadatanet.org/report/519";
    String keywords "2018-2019, azores, chemini, chemistry, concentration, concentrations, data, DEPH_QC, depth, dissolved, earth, Earth Science > Oceans > Ocean Chemistry > Nutrients, Earth Science > Oceans > Ocean Temperature > Water Temperature, east, emso, emso-azores, environmental monitoring node, exploitation, flag, francais, fran\\u00e7ais, hydrothermal vents, identifier, ifremer, in situ chemical analyser, institut, institute, ipgp, iron, iron concentration, IRON_QC, latitude, longitude, lucky strike, mer, mid-atlantic ridge, mole, mole_concentration_of_dissolved_iron_in_sea_water, momar, nutrients, ocean, oceans, paris, physics, pour, quality, recherche, science, sea, sea_water_temperature, seamon, seawater, TEMP, TEMP_QC, temperature, tempo, time, time-series, TIME_QC, total, tour eiffel, water";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "CC-BY-4.0";
    String license_uri "https://spdx.org/licenses/CC-BY-4.0";
    String netcdf_version "4";
    String network "EMSO France";
    Float64 Northernmost_Northing 37.17;
    String platform_code "SeaMoN East";
    String principal_investigator "Agathe Laës-huon";
    String principal_investigator_email "Agathe.Laes@ifremer.fr";
    String project "EMSO-France;EMSO;EMSODEV;ENVRI-FAIR";
    String regional_facility "Azores";
    String site_code "SeaMoN East";
    String source "NaN";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 37.17;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String subsetVariables "TIME_QC, latitude, longitude, depth, DEPH_QC, TEMP_QC, IRON_QC";
    String summary "This dataset contains dissolved iron concentrations (Fe(II) + Fe(III), µmol/l) acquired between August 2018 and December 2018 (n=445) using the CHEMINI Fe, a CHEmical MINIaturized analyser (samples taken every 12 hours, with daily in situ calibration using a 20 µmol/l iron standard, Vuillemin et al., 2009). The sample inlet was positioned on the mussel bed at the base of the Tour Eiffel edifice of the Lucky Strike hydrothermal vent (1695 depth). CHEMINI Fe (CF2) was mounted on the TEMPO module which was itself connected to the SeaMON East node of the EMSO-Azores observatory.";
    String time_coverage_end "2018-12-31T23:45:00Z";
    String time_coverage_start "2018-08-23T18:30:00Z";
    String title "EMSO-Azores, SeaMoN East : CHEMINI total dissolved iron concentrations, 2018-2019";
    String update_interval "void";
    Float64 Westernmost_Easting -32.16;
    String wmo_platform_code "NaN";
  }
}

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.