Versions Compared


  • This line was added.
  • This line was removed.
  • Formatting was changed.


  • MARS stands for Meteorological Archive and Retrieval System. MARS is the ECMWF archival system which handles the requests that are submitted externally through the Web-API.
  • A MARS request is basically a request for retrieving data from MARS using a specific language
  • For more information about MARS you may visit  the MARS user documentation.
  • An easy way to create your own MARS request is by  using our Datasets Web Interface .by using the web interfaces: How to check the content of the archive - Web API FAQ
  • Make some selections and click on "View the MARS request". The system will automatically translate your selections to a MARS request.
  • This request can be used as a pilot to build your WebAPI Web API script.

In the case of ERA Interim an example could be: