Make A Graph

Dataset Title:	EMSO Ligure Dyfamed carbon data
Institution:	LOV Laboratoire Oceanographique de Villefranche (Dataset ID: Emso_Ligure_Dyfamed_FCO2TW)
Range:	longitude = 7.86667 to 7.86667°E, latitude = 43.41667 to 43.41667°N, depth = -10.0 to 2.0m, time = 1995-06-12T00:00:00Z to 1997-12-28T23:02:24Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Data Access Form

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Y Axis:

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Server-side Functions

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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 8.029152e+8, 8.83350144e+8;
    String axis "T";
    Float64 colorBarMaximum 100000.0;
    Float64 colorBarMinimum -100000.0;
    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 "-90000.0";
  }
  TIME_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";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String long_name "quality flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 _FillValue 99999.0;
    Float32 actual_range 43.41667, 43.41667;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    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";
    Float32 valid_max 90.0;
    Float32 valid_min -90.0;
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 _FillValue 99999.0;
    Float32 actual_range 7.86667, 7.86667;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    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";
    Float32 valid_max 180.0;
    Float32 valid_min -180.0;
  }
  DC_REFERENCE {
    String conventions "Data centre convention";
    String long_name "Station/Location unique identifier in data centre";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 _FillValue -99999.0;
    Float32 actual_range -10.0, 2.0;
    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";
    String positive "down";
    String sdn_P02_urn "SDN:P02::AHGT";
    String sdn_parameter_urn "SDN:P01::ADEPZZ01";
    String sdn_uom_urn "SDN:P06::ULAA";
    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 -128;
    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 not_used nominal_value interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String long_name "quality flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  DEPH_DM {
    String actual_range 
" 
 ";
    Float64 colorBarMaximum 20.0;
    Float64 colorBarMinimum 0.0;
    String conventions "OceanSITES reference table 5";
    String flag_meanings "real-time provisional delayed-mode mixed";
    String flag_values "R, P, D, M";
    String long_name "method of data processing";
  }
  WSPD {
    Float32 _FillValue 9.96921e+36;
    Float32 actual_range -99.0, 14.0;
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum 0.0;
    String long_name "Horizontal wind speed";
    String sdn_P02_urn "SDN:P02::EWSB";
    String sdn_parameter_urn "SDN:P01::EWSBZZ01";
    String sdn_uom_urn "SDN:P06::UVAA";
    String standard_name "wind_speed";
    String units "meter/second";
  }
  WSPD_QC {
    Byte _FillValue -128;
    String _Unsigned "false";
    Byte actual_range 1, 4;
    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";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String long_name "quality flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  WSPD_DM {
    String actual_range 
" 
 ";
    Float64 colorBarMaximum 20.0;
    Float64 colorBarMinimum 0.0;
    String conventions "OceanSITES reference table 5";
    String flag_meanings "real-time provisional delayed-mode mixed";
    String flag_values "R, P, D, M";
    String long_name "method of data processing";
    String standard_name "wind_speed";
  }
  ATMP {
    Float32 _FillValue 9.96921e+36;
    Float32 actual_range 996.7, 1037.1;
    Float64 colorBarMaximum 1050.0;
    Float64 colorBarMinimum 950.0;
    String long_name "Atmospheric pressure at altitude";
    String sdn_P02_urn "SDN:P02::CAPH";
    String sdn_parameter_urn "SDN:P01::CAPHZZ01";
    String sdn_uom_urn "SDN:P06::UPBB";
    String standard_name "air_pressure";
    String units "hectopascal";
  }
  ATMP_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";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String long_name "quality flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  ATMP_DM {
    String actual_range 
" 
 ";
    Float64 colorBarMaximum 20.0;
    Float64 colorBarMinimum 0.0;
    String conventions "OceanSITES reference table 5";
    String flag_meanings "real-time provisional delayed-mode mixed";
    String flag_values "R, P, D, M";
    String long_name "method of data processing";
  }
  FCO2 {
    Float32 _FillValue 9.96921e+36;
    Float32 actual_range 279.92, 512.22;
    String long_name "CO2 fugacity";
    String sdn_P02_urn "SDN:P02::PCO2";
    String sdn_parameter_urn "SDN:P01::FCO2XXXX";
    String sdn_uom_urn "SDN:P06::UATM";
    String units "microatmosphere";
  }
  FCO2_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";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String long_name "quality flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  FCO2_DM {
    String actual_range 
" 
 ";
    Float64 colorBarMaximum 20.0;
    Float64 colorBarMinimum 0.0;
    String conventions "OceanSITES reference table 5";
    String flag_meanings "real-time provisional delayed-mode mixed";
    String flag_values "R, P, D, M";
    String long_name "method of data processing";
  }
  TEMP {
    Float32 _FillValue 9.96921e+36;
    Float32 actual_range 12.7, 27.93;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String long_name "Sea temperature";
    String sdn_P02_urn "SDN:P02::TEMP";
    String sdn_parameter_urn "SDN:P01::TEMPPR01";
    String sdn_uom_urn "SDN:P06::UPAA";
    String standard_name "sea_water_temperature";
    String units "degree_Celsius";
  }
  TEMP_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";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String long_name "quality flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  TEMP_DM {
    String actual_range 
" 
 ";
    Float64 colorBarMaximum 20.0;
    Float64 colorBarMinimum 0.0;
    String conventions "OceanSITES reference table 5";
    String flag_meanings "real-time provisional delayed-mode mixed";
    String flag_values "R, P, D, M";
    String long_name "method of data processing";
  }
 }
  NC_GLOBAL {
    String area "Mediterranean Sea - Western basin";
    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 comment "These observations are transmitted on GTS. They were converted from Coriolis database to this NetCDF file.";
    String contact "Laurent.Coppola@obs-vlfr.fr";
    String Conventions "OceanSITES Manual 1.1, CF-1.6, COARDS, ACDD-1.3, NCCSV-1.1";
    String coriolis_platform_code "68418";
    String creator_email "Laurent.Coppola@obs-vlfr.fr";
    String creator_name "Laurent Coppola";
    String creator_type "person";
    String creator_url "http://www.obs-vlfr.fr/sodyf";
    String data_assembly_center "Coriolis";
    String data_mode "R";
    String data_type "OceanSITES time-series data";
    String date_modified "2021-12-06T15:00:00Z";
    String date_update "2021-12-06T15:00:00Z";
    String defaultGraphQuery "time%2CTEMP&time>=1995-06-12T00%3A00%3A00Z&time<=1997-12-29T00%3A00%3A00Z&depth=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";
    Float64 Easternmost_Easting 7.86667;
    String family_label "mooring";
    String featureType "TimeSeries";
    String format_version "1.1";
    Float64 geospatial_lat_max 43.41667;
    Float64 geospatial_lat_min 43.41667;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 7.86667;
    Float64 geospatial_lon_min 7.86667;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 2.0;
    Float64 geospatial_vertical_min -10.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2019-09-02T12:19:22Z : Creation
2024-09-14T07:48:18Z (local files)
2024-09-14T07:48:18Z https://erddap.emso.eu/tabledap/Emso_Ligure_Dyfamed_FCO2TW.das";
    String id "OS_DYFAMED_1997_FCO2TW";
    String infoUrl "http://www.obs-vlfr.fr/sodyf";
    String institution "LOV Laboratoire Oceanographique de Villefranche";
    String institution_edmo_code "490";
    String keywords "air, air_pressure, altitude, atmosphere, atmospheric, ATMP, ATMP_QC, carbon, carbon dioxide, co2, data, DEPH, DEPH_QC, depth, dioxide, dyfamed, earth, Earth Science > Atmosphere > Atmospheric Pressure > Atmospheric Pressure Measurements, Earth Science > Atmosphere > Atmospheric Pressure > Sea Level Pressure, Earth Science > Atmosphere > Atmospheric Pressure > Static Pressure, Earth Science > Atmosphere > Atmospheric Winds > Surface Winds, Earth Science > Oceans > Ocean Temperature > Water Temperature, FCO2, FCO2_QC, flag, fugacity, global, gts, horizontal, laboratoire, level, lov, measurements, observations, observatory, ocean, oceanographique, oceans, positioning, POSITIONING_SYSTEM, pressure, quality, real, real time, real-time, realtime, science, sea, sea_water_temperature, seawater, speed, static, surface, system, telecommunications, TEMP, TEMP_QC, temperature, time, villefranche, water, wind, wind_speed, winds, WSPD, WSPD_QC";
    String keywords_vocabulary "GCMD Science Keywords";
    String last_date_observation "1997-12-28T23:02:24Z";
    String last_latitude_observation "43.41667";
    String last_longitude_observation "7.86667";
    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";
    Float64 Northernmost_Northing 43.41667;
    String pi_name "Laurent COPPOLA";
    String platform_code "DYFAMED";
    String platform_name "EuroSITES MOORING DYFAMED";
    String qc_manual "OceanSITES User's Manual v1.1";
    String quality_control_indicator "6";
    String quality_index "A";
    String references "http://www.obs-vlfr.fr/sodyf http://www.moose-network.fr http://www.emso-eu.org http://www.fixo3.eu http://www.oceansites.org http://www.coriolis.eu.org";
    String source "subsurface mooring";
    String source_platform_category_code "43";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 43.41667;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String subsetVariables "TIME_QC, latitude, longitude, DEPH_QC, DEPH_DM, WSPD_DM, ATMP_DM, FCO2_DM, TEMP_DM";
    String summary "Data collected from Global Telecommunications System (GTS) buoy messages";
    String time_coverage_end "1997-12-28T23:02:24Z";
    String time_coverage_start "1995-06-12T00:00:00Z";
    String title "EMSO Ligure Dyfamed carbon data";
    String update_interval "daily";
    Float64 Westernmost_Easting 7.86667;
    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.