Make A Graph

Dataset Title:	Euskalmet d27
Institution:	Euskalmet (Dataset ID: Euskalmet_d27)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Data Access Form \| Files

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Graph Type:
X Axis:
Y Axis:
Color:

Dimensions

Start

Stop

time (UTC)

specify just 1 value →

latitude (degrees_north)

longitude (degrees_east)

Graph Settings
Color Bar:	Continuity:	Scale:
Minimum:	Maximum:	N Sections:
Draw land mask:
Y Axis Minimum:	Maximum:

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

Optional:
Then set the File Type: (File Type information)
and

or view the URL:
(Documentation / Bypass this form

)

Click on the map to specify a new center point.

Zoom:

[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 {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.7464896e+9, 1.7467488e+9;
    String axis "T";
    String calendar "standard";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 41.915997952222824, 47.99599805474281;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -12.016000270843506, 0.022399932146072388;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  tsfc {
    Float64 colorBarMaximum 313.0;
    Float64 colorBarMinimum 263.0;
    String long_name "surface temperature";
    String standard_name "surface_temperature";
    String units "K";
  }
  t2m {
    Float64 colorBarMaximum 313.0;
    Float64 colorBarMinimum 263.0;
    String long_name "2m temperature";
    String units "K";
  }
  q2m {
    String long_name "2m mixing ratio";
    String units "Kg/Kg";
  }
  pre {
    String long_name "accum prec";
    String units "mm";
  }
  swd {
    String long_name "down sw rad";
    String units "W/m2";
  }
  lwd {
    String long_name "down lw rad";
    String units "W/m2";
  }
  pnm {
    String long_name "sea lev pre";
    String units "mb";
  }
  u10 {
    String long_name "10m u wind";
    String units "m/s";
  }
  v10 {
    String long_name "10m v wind";
    String units "m/s";
  }
  lhf {
    Float64 colorBarMaximum 250.0;
    Float64 colorBarMinimum -250.0;
    String long_name "lat heat flux";
    String units "W/m2";
  }
  shf {
    Float64 colorBarMaximum 250.0;
    Float64 colorBarMinimum -250.0;
    String long_name "sen heat flux";
    String units "W/m2";
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    String contact_email "arubio@azti.es";
    String contact_name "Anna Rubio";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    Float64 Easternmost_Easting 0.022399932146072388;
    Float64 geospatial_lat_max 47.99599805474281;
    Float64 geospatial_lat_min 41.915997952222824;
    Float64 geospatial_lat_resolution 0.12160000205039978;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 0.022399932146072388;
    Float64 geospatial_lon_min -12.016000270843506;
    Float64 geospatial_lon_resolution 0.12160000205039978;
    String geospatial_lon_units "degrees_east";
    String history 
"2025-05-06T11:53:40Z https://euskoos.eus/mapv2/
2025-05-06T11:53:40Z https://www.euskoos.eus/griddap/Euskalmet_d27.das";
    String infoUrl "https://info.euskoos.eus/";
    String institution "Euskalmet";
    String keywords "10m, accum, data, down, earth, Earth Science > Land Surface > Land Temperature > Land Surface Temperature, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature, flux, heat, land, latitude, lev, lhf, local, longitude, lwd, mixing, ocean, oceans, pnm, pre, prec, q2m, rad, ratio, science, sea, sen, shf, source, surface, surface_temperature, swd, t2m, temperature, time, tsfc, u, u10, v, v10, wind";
    String keywords_vocabulary "GCMD Science Keywords";
    String license 
"Data must be used following CC BY-NC-ND 4.0 Creative Commons license (https://creativecommons.org/licenses/by-nc-nd/4.0/deed.en) and only for scientific purposes. No commercial purposes are allowed.
Data are not intended for legal use since they may contain inaccuracies. Data provider, nor any of their employees or contractors, makes any warranty and assume any legal liability for the accuracy, completeness, or usefulness, of this information.";
    Float64 Northernmost_Northing 47.99599805474281;
    String sourceUrl "https://euskoos.eus/mapv2/";
    Float64 Southernmost_Northing 41.915997952222824;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "Euskalmet d27";
    String testOutOfDate "now+1day";
    String time_coverage_end "2025-05-09T00:00:00Z";
    String time_coverage_start "2025-05-06T00:00:00Z";
    String title "Euskalmet d27";
    Float64 Westernmost_Easting -12.016000270843506;
  }
}

Using griddap to Request Data and Graphs from Gridded Datasets

griddap lets you request a data subset, graph, or map from a gridded dataset (for example, sea surface temperature data from a satellite), via a specially formed URL. griddap uses the OPeNDAP (external link)

Data Access Protocol (DAP) (external link)

and its projection 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. It makes 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.

griddap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/griddap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/griddap/jplMURSST41.htmlTable?analysed_sst[(2002-06-01T09:00:00Z)][(-89.99):1000:(89.99)][(-179.99):1000:(180.0)]
Thus, the query is often a data variable name (e.g., analysed_sst), followed by [(start):stride:(stop)] (or a shorter variation of that) for each of the variable's dimensions (for example, [time][latitude][longitude]).

For details, see the griddap Documentation.