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Below the release notes for the metObs API can be seen. Each release note will represent bug fixes, improvements and features that are introduced in the new version compared to the previous version of the API. Versions that are no longer in service will not appear on the list.


VersionRelease dateFixesImprovementsNew Features
v2Feb 23rd 2021

We are happy to introduce a new version of the metObs API, which provides free and open access to DMI’s meteorological observation data.

The new version is aligned with the services for oceanographic observation data and lightning data, and follows the OGC API - Features standard.

 

The release consists of:

  • MetObs v2 API
  • MetObs v2 Bulk Download Service
  • Technical documentation


Main differences between metObs v1 and v2 are:

  • metObs v2 is similar to the other DMI open data services - uses same data schema as oceanObs v2 and lightningdata v2.
  • metObs v2 API follows OGC API Feature standard
  • time formats are RFC3339
  • result set has 'next' link to next page in results
  • metObs v2 results are not sorted unless requested via sortorder
  • metObs v2 supports queries based on bounding box - see bbox parameter in the Request and Response Examples
  • metObs v2 does not support sorting in ascending order (this has to be done by client)
  • Observations return GeoJSON with the geometry property set for applicalble data (this makes it possible to immediately see from where the observation came without querying the station list)
  • in metObs v2 the datetime parameter includes both the ‘to’ and the ‘from’ endpoints, where in metObs v1 the ‘from’ parameter was included and the ‘to’ parameter was not
  • metObs v2 does not return 204 on empty results. Empty results are 200 OK, but with empty feature list and numberReturned = 0.
  • metObs v2 stations list contains station history – see more on the Station specific Request & Response examples page
  • metObs v2 parameter list endpoint has been removed - see list here


A 6-month transition period is planned, where both metObs v1 and v2 services will be active. MetObs v1 will be retired on August 31st 2021.

v1Jan 7th 2021

Introduced a limit on the request offset, so no offset can be greater than 1,000,000.

This change prevents the API from returning an error due to connection timeout, and will instead give the user a "400 Bad Request" response.

This change results in the API behaving slightly different, if you query very high offsets.



v1Dec 14th 2020Observations for station 30414 has been added - this station had previously no observations.

3 new parameters introduced:

  • temp_max_past12h
  • temp_min_past12h
  • wind_max_per10min_past1h

Please see detailed description here. Parameters are present on current and historic data.


6 new stations introduced:

  • 06052
  • 20552 
  • 23360
  • 28032
  • 28280
  • 32175

Please see station list here.


v1June 23rd 2020

We are happy to introduce DMI’s Open Data metObs API which provides free and open access to DMI’s meteorological observation data.

We hope that you will benefit from our data and use it in new and exciting ways.

The release consists of:

MetObs API

MetObs Bulk Download Service

Technical documentation


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