Make A Graph

Dataset Title:	Porcupine Abyssal Plain - 74FS20211031
Institution:	ICOS RI; National Oceanography Centre (Dataset ID: nHolXLH2A1UuewwRpkWLacbL)
Range:	longitude = -16.45 to -16.398°E, latitude = 48.955 to 48.989°N, depth = 1.0 to 1.0m, time = 2021-11-01T00:20:04.000Z to 2022-01-09T18:22:13.000Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Data Access Form \| Files

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Graph Type:

X Axis:

Y Axis:

Color:

Constraints	Optional Constraint #1		Optional Constraint #2

Server-side Functions

distinct()

Hover here to see a list of options. Click on an option to select it.

Graph Settings

Marker Type:

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Color:

Color Bar:

Continuity:

Scale:

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Maximum:

N Sections:

Draw land mask:

Y Axis Minimum:

Maximum:

(Please be patient. It may take a while to get the data.)

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Then set the File Type: (File Type information)
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or view the URL:
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Click on the map to specify a new center point.

Zoom:

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[The graph you specified. Please be patient.]

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 1.635726004e+9, 1.641752533e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Date/Time";
    String source_name "Date/Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01T00:00:00.000Z";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -16.45, -16.398;
    String axis "X";
    Float32 colorBarMaximum 180.0;
    Float32 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String source_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 48.955, 48.989;
    String axis "Y";
    Float32 colorBarMaximum 90.0;
    Float32 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String source_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 actual_range 1.0, 1.0;
    String axis "Z";
    Float32 colorBarMaximum 15.0;
    Float32 colorBarMinimum 0.0;
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String source_name "Depth [m]";
    String standard_name "depth";
    String units "m";
  }
  TEMPPR01 {
    Float32 _FillValue NaN;
    Float32 actual_range 13.375, 15.599;
    Float32 colorBarMaximum 40.0;
    Float32 colorBarMinimum -5.0;
    String ioos_category "Temperature";
    String long_name "Sea Water Temperature";
    String source_name "Temp [degC]";
    String standard_name "sea_water_temperature";
    String units "degree_Celsius";
  }
  PSLTZZ01 {
    Float32 _FillValue NaN;
    Float32 actual_range 35.416, 35.702;
    Float32 colorBarMaximum 38.0;
    Float32 colorBarMinimum 0.0;
    String ioos_category "Salinity";
    String long_name "Sea Water Salinity";
    String source_name "P_sal [psu]";
    String standard_name "sea_water_salinity";
    String units "1";
  }
  PCO2XXXX {
    Float32 _FillValue NaN;
    Float32 actual_range 369.612, 393.804;
    Float32 colorBarMaximum 1200.0;
    Float32 colorBarMinimum 350.0;
    String ioos_category "CO2";
    String long_name "water pCO2 wet using sst";
    String source_name "pCO2 [uatm]";
    String standard_name "surface_partial_pressure_of_carbon_dioxide_in_sea_water";
    String units "uatm";
  }
  FCO2XXXX {
    Float32 _FillValue NaN;
    Float32 actual_range 369.61, 393.802;
    Float32 colorBarMaximum 1200.0;
    Float32 colorBarMinimum 350.0;
    String ioos_category "CO2";
    String long_name "water fCO2 wet using sst";
    String source_name "fCO2 [uatm]";
    String standard_name "fugacity_of_carbon_dioxide_in_sea_water";
    String units "uatm";
  }
  xCO2_atm_dry {
    Float32 _FillValue NaN;
    Float32 colorBarMaximum 1200.0;
    Float32 colorBarMinimum 350.0;
    String ioos_category "CO2";
    String long_name "xCO2 in air";
    String source_name "xCO2 In Atmosphere - Calibrated In Dry Air[mol mol - 1]";
    String standard_name "mole_fraction_of_carbon_dioxide_in_air";
    String units "umol/mol";
  }
  ACO2XXXX {
    Float32 _FillValue NaN;
    Float32 actual_range 406.07, 433.155;
    Float32 colorBarMaximum 1200.0;
    Float32 colorBarMinimum 350.0;
    String ioos_category "CO2";
    String long_name "pCO2 in air";
    String source_name "pCO2 in atmosphere [uatm]";
    String standard_name "surface_partial_pressure_of_carbon_dioxide_in_air";
    String units "uatm";
  }
  FCO2WTAT {
    Float32 _FillValue NaN;
    Float32 actual_range 406.069, 433.153;
    Float32 colorBarMaximum 1200.0;
    Float32 colorBarMinimum 350.0;
    String ioos_category "CO2";
    String long_name "fCO2 in air";
    String source_name "fCO2 in atmosphere [uatm]";
    String units "uatm";
  }
  expocode {
    String cf_role "timeseries_id";
    String ioos_category "Unknown";
    String long_name "EXPOCODE";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "expocode";
    String citation "Hartman, S., Flohr, A. (2022). ICOS OTC FOS Release from Porcupine Abyssal Plain, 2021-11-01–2022-01-09, ICOS RI, https://hdl.handle.net/11676/nHolXLH2A1UuewwRpkWLacbL";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    Float64 Easternmost_Easting -16.398;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 48.989;
    Float64 geospatial_lat_min 48.955;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -16.398;
    Float64 geospatial_lon_min -16.45;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 1.0;
    Float64 geospatial_vertical_min 1.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2025-04-03T04:30:39Z https://meta.icos-cp.eu/objects/nHolXLH2A1UuewwRpkWLacbL
2025-04-03T04:30:39Z https://erddap.icos-cp.eu/tabledap/nHolXLH2A1UuewwRpkWLacbL.das";
    String infoUrl "https://meta.icos-cp.eu/objects/nHolXLH2A1UuewwRpkWLacbL";
    String institution "ICOS RI; National Oceanography Centre";
    String license "CC BY 4.0/ICOS Data Licence: https://www.icos-cp.eu/data-services/about-data-portal/data-license";
    Float64 Northernmost_Northing 48.989;
    String person_1_email "s.hartman@noc.ac.uk";
    String person_1_firstName "Sue";
    String person_1_id "http://meta.icos-cp.eu/resources/otcmeta/SueHartman";
    String person_1_lastName "Hartman";
    String person_1_orcid "0000-0002-6363-1331";
    String person_1_org "National Oceanography Centre";
    String person_2_firstName "Anita";
    String person_2_id "http://meta.icos-cp.eu/resources/otcmeta/AnitaFlohr";
    String person_2_lastName "Flohr";
    String person_2_orcid "0000-0002-5018-5379";
    String person_2_org "National Oceanography Centre";
    String sourceUrl "https://meta.icos-cp.eu/objects/nHolXLH2A1UuewwRpkWLacbL";
    Float64 Southernmost_Northing 48.955;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "ICOS OTC FOS Release from Porcupine Abyssal Plain";
    String time_coverage_end "2022-01-09T18:22:13.000Z";
    String time_coverage_start "2021-11-01T00:20:04.000Z";
    String title "Porcupine Abyssal Plain - 74FS20211031";
    Float64 Westernmost_Easting -16.45;
  }
}

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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