Make A Graph

Dataset Title:	EMSO Ligure Dyfamed oxygen/fluorescence data
Institution:	LABORATOIRE OCEANOGRAPHIQUE DE VILLEFRANCHE (Dataset ID: Emso_Ligure_Dyfamed_TSOF)
Range:	time = 1998-02-05T19:18:52Z to 2007-12-14T12:55:00Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Data Access Form

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X Axis:

Y Axis:

Constraints

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Server-side Functions

distinct()

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Things You Can Do With Your Graphs

Well, you can do anything you want with your graphs, of course. But some things you might not have considered are:

Web page authors can embed a graph of the latest data in a web page using HTML <img> tags.
Anyone can use ERDDAPs Slide Sorter to build a personal web page that displays graphs with the latest data (or other images or HTML content), each in its own, draggable slide.

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 8.86706332e+8, 1.1976369e+9;
    String axis "T";
    Float64 colorBarMaximum 100000.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Time";
    String long_name "Time";
    Int32 QC_indicator 1;
    Int32 QC_procedure 1;
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
    String valid_max "90000.0";
    String valid_min "0.0";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude of each location";
    Int32 QC_indicator 1;
    Int32 QC_procedure 1;
    String standard_name "latitude";
    String units "degrees_north";
    Float64 valid_max 90.0;
    Float64 valid_min -90.0;
  }
  longitude {
    String _CoordinateAxisType "Lon";
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude of each location";
    Int32 QC_indicator 1;
    Int32 QC_procedure 1;
    String standard_name "longitude";
    String units "degrees_east";
    Float64 valid_max 180.0;
    Float64 valid_min -180.0;
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 _FillValue 9.96921e+36;
    String axis "Z";
    String cf_role "timeseries_id";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String ioos_category "Location";
    String long_name "Depth of each measurement";
    String positive "down";
    Int32 QC_indicator 1;
    Int32 QC_procedure 1;
    String references "sea_level";
    String sdn_P02_urn "SDN:P02::AHGT";
    String sdn_parameter_urn "SDN:P01::ADEPZZ01";
    String sdn_uom_urn "SDN:P06::ULAA";
    String standard_name "depth";
    String units "m";
    Float32 valid_max 12000.0;
    Float32 valid_min 0.0;
  }
  PRES {
    Float32 _FillValue -3.4e+38;
    Float32 accuracy 0.0;
    Float32 actual_range 0.0, 4014.5;
    String ancillary_variables "pres_qc";
    Float64 colorBarMaximum 5000.0;
    Float64 colorBarMinimum 0.0;
    String DM_indicator "R";
    String long_name "sea water pressure";
    Float32 precision 0.0;
    Byte QC_procedure 1;
    String sdn_P02_urn "SDN:P02::AHGT";
    String sdn_parameter_urn "SDN:P01::PRESPR01";
    String sdn_uom_urn "SDN:P06::UPDB";
    Float32 sensor_depth 0.0;
    String standard_name "sea_water_pressure";
    Float32 uncertainty 0.0;
    String units "decibar";
    Float32 valid_max 12000.0;
    Float32 valid_min 0.0;
  }
  PRES_QC {
    Byte _FillValue -128;
    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 not_used nominal_value interpolated_value missing_value";
    String flag_values "0, 1, 2, 3, 4, 5, 7, 8, 9";
    String long_name "quality flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  PSAL {
    Float32 _FillValue -3.4e+38;
    Float32 accuracy 0.0;
    Float32 actual_range -0.0989, 81.5644;
    String ancillary_variables "PSAL_QC";
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String DM_indicator "R";
    String long_name "practical salinity";
    Float32 precision 0.0;
    Byte QC_procedure 1;
    String sdn_P02_urn "SDN:P02::PSAL";
    String sdn_parameter_urn "SDN:P01::PSLTZZ01";
    String sdn_uom_urn "SDN:P06::UUUU";
    Float32 sensor_depth 0.0;
    String standard_name "sea_water_practical_salinity";
    Float32 uncertainty 0.0;
    String units "PSU";
    Float32 valid_max 42.0;
    Float32 valid_min 0.0;
  }
  PSAL_QC {
    Byte _FillValue -128;
    String _Unsigned "false";
    Byte actual_range 1, 3;
    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 not_used nominal_value interpolated_value missing_value";
    String flag_values "0, 1, 2, 3, 4, 5, 7, 8, 9";
    String long_name "quality flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  TEMP {
    Float32 _FillValue 99999.0;
    Float32 accuracy 0.0;
    Float32 actual_range -9.99e-29, 27.215;
    String ancillary_variables "temp_qc";
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String DM_indicator "R";
    String long_name "sea water temperature in-situ ITS-90 scale";
    Float32 precision 0.0;
    Byte QC_procedure 1;
    String sdn_P02_urn "SDN:P02::TEMP";
    String sdn_parameter_urn "SDN:P01::TEMPPR01";
    String sdn_uom_urn "SDN:P06::UPAA";
    Float32 sensor_depth 0.0;
    String standard_name "sea_water_temperature";
    Float32 uncertainty 0.01;
    String units "degree_Celsius";
    Float32 valid_max 40.0;
    Float32 valid_min -2.0;
  }
  TEMP_QC {
    Byte _FillValue -128;
    String _Unsigned "false";
    Byte actual_range 1, 3;
    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 not_used nominal_value interpolated_value missing_value";
    String flag_values "0, 1, 2, 3, 4, 5, 7, 8, 9";
    String long_name "quality flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  DOX1 {
    Float32 _FillValue -3.4e+38;
    Float32 accuracy 0.0;
    Float32 actual_range -4.66074, 13.99839;
    String ancillary_variables "dox1_qc";
    Float64 colorBarMaximum 500.0;
    Float64 colorBarMinimum 0.0;
    String DM_indicator "R";
    String long_name "DISSOLVED OXYGEN";
    Float32 precision 0.0;
    Byte QC_procedure 1;
    String sdn_P02_urn "SDN:P02::DOXY";
    String sdn_parameter_urn "SDN:P01::DOXYZZXX";
    String sdn_uom_urn "SDN:P06::UMLL";
    Float32 sensor_depth 0.0;
    String standard_name "mass_concentration_of_oxygen_in_sea_water";
    Float32 uncertainty 0.0;
    String units "ml/l";
    Float32 valid_max 0.0;
    Float32 valid_min 0.0;
  }
  DOX1_QC {
    Byte _FillValue -128;
    String _Unsigned "false";
    Byte actual_range 1, 3;
    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 not_used nominal_value interpolated_value missing_value";
    String flag_values "0, 1, 2, 3, 4, 5, 7, 8, 9";
    String long_name "quality flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  FLUO {
    Float32 _FillValue -3.4e+38;
    Float32 accuracy 0.0;
    Float32 actual_range -10.6773, 291.9069;
    String ancillary_variables "fluo_qc";
    Float64 colorBarMaximum 1.0;
    Float64 colorBarMinimum -1.0;
    String DM_indicator "R";
    String long_name "fluorescence";
    Float32 precision 0.0;
    Byte QC_procedure 1;
    String sdn_P02_urn "SDN:P02::FVLT";
    String sdn_parameter_urn "SDN:P01::FLUOZZZZ";
    String sdn_uom_urn "SDN:P06::UUUU";
    Float32 sensor_depth 0.0;
    String standard_name "xxx";
    Float32 uncertainty 0.0;
    String units "relative unit";
    Float32 valid_max 0.0;
    Float32 valid_min 0.0;
  }
  FLUO_QC {
    Byte _FillValue -128;
    String _Unsigned "false";
    Byte actual_range 1, 3;
    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 not_used nominal_value interpolated_value missing_value";
    String flag_values "0, 1, 2, 3, 4, 5, 7, 8, 9";
    String long_name "quality flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  DOX2 {
    Float32 _FillValue 9.96921e+36;
    Float32 actual_range 159.912, 327.924;
    String long_name "DOX2";
    String sdn_P02_urn "SDN:P02::DOXY";
    String sdn_parameter_urn "SDN:P01::DOXMZZXX";
    String sdn_uom_urn "SDN:P06::KGUM";
  }
  DOX2_QC {
    Byte _FillValue -128;
    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 not_used nominal_value interpolated_value missing_value";
    String flag_values "0, 1, 2, 3, 4, 5, 7, 8, 9";
    String long_name "quality flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  FLU2 {
    Float32 _FillValue -3.4e+38;
    Float32 accuracy 0.0;
    Float32 actual_range 0.8048, 2.0517;
    String ancillary_variables "flu2_qc";
    Float64 colorBarMaximum 1.0;
    Float64 colorBarMinimum -1.0;
    String DM_indicator "R";
    String long_name "fluorescence";
    Float32 precision 0.0;
    Byte QC_procedure 1;
    String sdn_P02_urn "SDN:P02::CPWC";
    String sdn_parameter_urn "SDN:P01::CPHLPM01";
    String sdn_uom_urn "SDN:P06::UMMC";
    Float32 sensor_depth 0.0;
    String standard_name "xxx";
    Float32 uncertainty 0.0;
    String units "milligram/m3";
    Float32 valid_max 0.0;
    Float32 valid_min 0.0;
  }
  FLU2_QC {
    Byte _FillValue -128;
    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 not_used nominal_value interpolated_value missing_value";
    String flag_values "0, 1, 2, 3, 4, 5, 7, 8, 9";
    String long_name "quality flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  OSAT {
    Float32 _FillValue 9.96921e+36;
    Float32 actual_range -80.54922, 241.9259;
    String long_name "OSAT";
    String sdn_P02_urn "SDN:P02::DOXY";
    String sdn_parameter_urn "SDN:P01::OXYSZZ01";
    String sdn_uom_urn "SDN:P06::UPCT";
  }
  OSAT_QC {
    Byte _FillValue -128;
    String _Unsigned "false";
    Byte actual_range 1, 3;
    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 not_used nominal_value interpolated_value missing_value";
    String flag_values "0, 1, 2, 3, 4, 5, 7, 8, 9";
    String long_name "quality flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
 }
  NC_GLOBAL {
    String area "North Atlantic Ocean";
    String author "Thierry Carval";
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "depth";
    String citation "These data were collected and made freely available by the OceanSITES project and the national programs that contribute to it";
    String contact "laurent.coppola@obs-vlfr.fr";
    String Conventions "OceanSITES Manual 1.1, CF-1.6, COARDS, ACDD-1.3, NCCSV-1.1";
    String creator_email "laurent.coppola@obs-vlfr.fr";
    String creator_name "Laurent Coppola";
    String creator_type "person";
    String creator_url "http://www.eurosites.info";
    String data_assembly_center "EUROSITES";
    String data_mode "R";
    String data_type "OceanSITES vertical profile";
    String date_modified "2021-12-06T15:00:00Z";
    String date_update "2021-12-06T15:00:00Z";
    String defaultGraphQuery "time%2CTEMP&time>=2006-05-06T10%3A13%3A22Z&time<=2007-12-15T00%3A00%3A00Z&TEMP_QC=1&.draw=lines&.color=0x000000&.bgColor=0xffccccff";
    String distribution_statement "Follows CLIVAR (Climate Varibility and Predictability) standards, cf.http://www.clivar.org/data/data_policy.php. Data available free of charge.User assumes ll risk foruse of data. User mustdisplay citation in anypublication or product usingdata. User must contact PIprior to any commercial useof data";
    String featureType "TimeSeries";
    String format_version "1.1";
    String geospatial_lat_units "degrees_north";
    String geospatial_lon_units "degrees_east";
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2009-08-24T12:52:24Z : Creation
2025-05-12T12:25:43Z (local files)
2025-05-12T12:25:43Z https://erddap.emso.eu/tabledap/Emso_Ligure_Dyfamed_TSOF.das";
    String id "OS_DYFAMED_2007_TSOF";
    String infoUrl "http://www.eurosites.info";
    String institution "LABORATOIRE OCEANOGRAPHIQUE DE VILLEFRANCHE";
    String institution_references "http://www.obs-vlfr.fr/sodyf";
    String keywords "chemistry, concentration, data, density, depth, dissolved, DOX1, DOX1_QC, dox2, DOX2_QC, earth, Earth Science > Oceans > Ocean Chemistry > Oxygen, Earth Science > Oceans > Ocean Pressure > Water Pressure, Earth Science > Oceans > Ocean Temperature > Water Temperature, Earth Science > Oceans > Salinity/Density > Salinity, flag, FLU2, FLU2_QC, FLUO, FLUO_QC, fluorescence, in-situ, its, its-90, laboratoire, local, mass, mass_concentration_of_oxygen_in_sea_water, O2, ocean, oceanographique, oceans, osat, OSAT_QC, oxygen, practical, PRES, PRES_QC, pressure, PSAL, PSAL_QC, quality, salinity, scale, science, sea, sea_water_practical_salinity, sea_water_pressure, sea_water_temperature, seawater, situ, source, TEMP, TEMP_QC, temperature, time, villefranche, water, xxx";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "Follows CLIVAR (Climate Varibility and Predictability) standards, cf.http://www.clivar.org/data/data_policy.php. Data available free of charge.User assumes ll risk foruse of data. User mustdisplay citation in anypublication or product usingdata. User must contact PIprior to any commercial useof data";
    String naming_authority "OceanSITES";
    String netcdf_version "3.5";
    String pi_name "Laurent COPPOLA";
    String qc_manual "OceanSITES User's Manual v1.1";
    String quality_control_indicator "6";
    String quality_index "A";
    String references "http://www.eurosites.info, http://www.oceansites.org, http://www.coriolis.eu.org";
    String source "BUOY/MOORING: SUBSURFACE, MOORED : observation";
    String sourceUrl "(local files)";
    String standard_name_vocabulary "CF Standard Name Table v55";
    String subsetVariables "depth,time";
    String summary "LABORATOIRE OCEANOGRAPHIQUE DE VILLEFRANCHE data from a local source.";
    String time_coverage_end "2007-12-14T12:55:00Z";
    String time_coverage_start "1998-02-05T19:18:52Z";
    String title "EMSO Ligure Dyfamed oxygen/fluorescence data";
    String update_interval "daily";
    String wmo_platform_code "68418";
  }
}

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.