National Antarctic Data Center - ERDDAP
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Dataset Title:	Permafrost temperature PERMVEG-NET
Institution:	University of Insubria (Dataset ID: dfbcd325-2689-4cd4-a5bc-d98c18340b79)
Information:	Summary \| License \| Metadata \| Background

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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 {
  Year {
    Int32 _FillValue 32767;
    Int32 actual_range 2010, 2024;
    String long_name "Year";
  }
  T {
    Float64 actual_range -13.34189884, -12.9234;
    String long_name "T";
    String units "degree_C";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Other";
    String contributor_email "mauro.guglielmin@uninsubria.it";
    String contributor_institution "University of Insubria";
    String contributor_name "Mauro Guglielmin";
    String Conventions "COARDS, CF-1.10, ACDD-1.3";
    String creator_email "mauro.guglielmin@uninsubria.it";
    String creator_name "Mauro Guglielmin";
    String creator_type "institution";
    String history 
"The temperature at the ZAA depth (ECV 1) are temperature data (Â°C) recorded at 25 m of depth daily and averaged yearly. The accuracy of the thermistors is 0.1Â°C and the data here presented is mean annual temperature at 25 m of depth. Datasets are initially uploaded to the NADC ERDDAP instance with restricted access (authentication required). They will be made publicly available following publication of the associated paper. For further information, please contact the Principal Investigator (PI).
2026-05-29T16:06:59Z (local files)
2026-05-29T16:06:59Z https://antarcticdatacenter.cnr.it/tabledap/dfbcd325-2689-4cd4-a5bc-d98c18340b79.das";
    String infoUrl "https://www.pnra.aq/it/project/718/rete-di-monitoraggio-del-permafrost-e-della-vegetazione-antartide-continentale";
    String institution "University of Insubria";
    String keywords "Antarctica, data, insubria, permafrost, permveg-net, temperature, university, ZAA";
    String license 
"The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.";
    String publisher_name "National Antarctic Data Center of Italy";
    String publisher_type "group";
    String publisher_url "https://iandc.pnra.aq";
    String sourceUrl "(local files)";
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "The only borehole equipped the international standard and within the network managed by the PNRA OSS-12 is located very close to MZS named OASI. The site (-74.74167;164.1;52 m slm) is a flat granitic outcrop. The borehole was drilled with compressed and refrigerated air in the austral summer of 2007 and equipped in 2008. The borehole is 31 m deep and the ZAA is ca 26m and there are 20 thermistors at different depths. Here, only the temperature closest at ZAA depth has been reported.";
    String title "Permafrost temperature PERMVEG-NET";
  }
}

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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