Make A Graph

Dataset Title:	@lgaWarning Data
Institution:	ETT (Dataset ID: algawarning_nautilos)
Range:	longitude = 8.855259 to 16.0055°E, latitude = 44.07081 to 77.077805°N, time = 2020-07-28T15:28:10Z to 2024-10-30T23:00:00Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Data Access Form \| Files

To work correctly, this web page requires that JavaScript be enabled in your browser. Please:
1) Enable JavaScript in your browser:
      • Chrome: "Settings : Advanced : Privacy and security : Site Settings : JavaScript"
      • Firefox: (it should be always on!)"
      • Opera: "Settings : Websites : JavaScript"
      • Safari: "Safari : Preferences : Security : Enable JavaScript"
2) Reload this web page.

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:

Size:

Color:

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:

Time range:

[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 1.59595009e+9, 1.7303292e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Date";
    String parameter_sdn_name "Elapsed time relative to 1970-01-01T00:00:00Z";
    String parameter_sdn_uri "https://vocab.nerc.ac.uk/collection/P01/current/ELTMEP01/";
    String parameter_sdn_urn "SDN:P01::ELTMEP01";
    String source_name "date";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01T00:00:00Z";
    String unit_sdn_name "Seconds";
    String unit_sdn_uri "https://vocab.nerc.ac.uk/collection/P06/current/UTBB/";
    String unit_sdn_urn "SDN:P06::UTBB";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  site_name {
    String ioos_category "Unknown";
    String long_name "Position";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 44.070808, 77.07780556;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String parameter_sdn_name "Latitude north";
    String parameter_sdn_uri "https://vocab.nerc.ac.uk/collection/P01/current/ALATZZ01/";
    String parameter_sdn_urn "SDN:P01::ALATZZ01";
    String standard_name "latitude";
    String unit_sdn_name "Degrees north";
    String unit_sdn_uri "https://vocab.nerc.ac.uk/collection/P06/current/DEGN/";
    String unit_sdn_urn "SDN:P06::DEGN";
    String units "degrees_north";
    String units_url "docs.unidata.ucar.edu/udunits/current/udunits2-common.xml";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range 8.85525894165039, 16.0055;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String parameter_sdn_name "Longitude east";
    String parameter_sdn_uri "https://vocab.nerc.ac.uk/collection/P01/current/ALONZZ01/";
    String parameter_sdn_urn "ALONZZ01";
    String standard_name "longitude";
    String unit_sdn_name "Degrees east";
    String unit_sdn_uri "https://vocab.nerc.ac.uk/collection/P06/current/DEGE/";
    String unit_sdn_urn "SDN:P06::DEGE";
    String units "degrees_east";
    String units_url "docs.unidata.ucar.edu/udunits/current/udunits2-common.xml";
  }
  algae_type {
    String ioos_category "Unknown";
    String long_name "Type";
  }
  description {
    String ioos_category "Unknown";
    String long_name "Description";
  }
  sample_volume {
    Float32 actual_range 1.0, 1.0;
    String ioos_category "Unknown";
    String long_name "Volume";
    String unit_sdn_name "Millilitres";
    String unit_sdn_uri "https://vocab.nerc.ac.uk/collection/P06/current/VVML/";
    String unit_sdn_urn "SDN:P06::VVML";
    String units "ml";
  }
  operator_id {
    String ioos_category "Unknown";
    String long_name "User";
  }
  image {
    String ioos_category "Unknown";
    String long_name "Image";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Point";
    String Citation "This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 101000825 (NAUTILOS). This output reflects only the author's view and the European Union cannot be held responsible for any use that may be made of the information contained therein.";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    Float64 Easternmost_Easting 16.0055;
    String EDMERP_code "13720";
    String EDMO "2764";
    String featureType "Point";
    String funding_ID "101000825";
    String funding_statement "This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 101000825 (NAUTILOS). This output reflects only the author's view and the European Union cannot be held responsible for any use that may be made of the information contained therein";
    Float64 geospatial_lat_max 77.07780556;
    Float64 geospatial_lat_min 44.070808;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 16.0055;
    Float64 geospatial_lon_min 8.85525894165039;
    String geospatial_lon_units "degrees_east";
    String history 
"2025-10-13T14:50:33Z (local files)
2025-10-13T14:50:33Z http://erddap.s4oceandata.eu/tabledap/algawarning_nautilos.das";
    String infoUrl "http://algawarning.it/";
    String institution "ETT";
    String keywords "data, date, description, image, latitude, local, longitude, mainid, position, source, tag, time, type, user, volume";
    String license "Data is licensed under a Creative Commons Attribution 4.0 International License. You should have received a copy of the license along with this work. If not, see https://creativecommons.org/licenses/by/4.0/.";
    Float64 Northernmost_Northing 77.07780556;
    String Project_DOI "https://doi.org/10.3030/101000825";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 44.070808;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "@lgaWarning Data";
    String time_coverage_end "2024-10-30T23:00:00Z";
    String time_coverage_start "2020-07-28T15:28:10Z";
    String title "@lgaWarning Data";
    Float64 Westernmost_Easting 8.85525894165039;
  }
}

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.

ERDDAP, Version 2.24
Disclaimers | Privacy Policy | Contact