Access OGC Servers to Download Weather Maps, Warn Maps, Satellite Pictures etc.

[Karen K]

A lot of weather services (like NOAA, DWD etc.) operate an OGC server to provide weather maps, warnings maps, satellite pictures etc. What data to download is defined by a special set of URL parameters. weewx-DWD provides a configuration interface to access such servers. You can easily set up the download parameters in weewx.conf as described in this Wiki article. The module makes sure, the downloaded files are available just before skin creation starts after the end of the archive interval. 

Besides querying OGC servers the module can also download arbitrary files from every server specified in weewx.conf by the url key.

[Karen K]

• I added an English description, containing an example for querying the NOAA server: Query Open Geospatial Consortium (OGC) Servers (English).
  
• The german description as at: Open Geospatial Consortium (OGC) Server abfragen.
  

A lot of weather services (like NOAA, DWD etc.) operate an OGC server to provide weather maps, warnings maps, satellite pictures etc. What data to download is defined by a special set of URL parameters. weewx-DWD provides a configuration interface to access such servers. You can easily set up the download parameters in weewx.conf as described in the Wiki pages mentioned above.

[gary....@gmail.com]

Thank you! Very enlightening.

[David Hathaway]

This is really interesting. Can you get underlaying geo features, like roads or topology?

Dave

[Karen K]

David Hathaway schrieb am Sonntag, 18. August 2024 um 14:35:05 UTC+2:

Can you get underlaying geo features, like roads or topology?

That depends on the server. Some servers provide them, some not. Generally you can set up a list of layers. So you can start or end the list with a layer of topographic data, if the server provides it. I did not check all the servers for their features. So you may want to ask the provider of the server of your choice.

[Karen K]

David Hathaway schrieb am Sonntag, 18. August 2024 um 14:35:05 UTC+2:

This is really interesting. Can you get underlaying geo features, like roads or topology?

I did some further investigations, and I ask one of the weather services for that. If the server that provides the readings does not provide geo features, you can use any other server to get that additional information as long as you specify the same bbox, width, height and crs parameters. There is an example in the KNMI wiki page, and you could even use their geo feature server as it covers the whole world including U.S. Use the GetCapabilities request to get a list of the layers and their names.

[David Hathaway]

Thank you Karen for your continued research. I appreciate this! 

Dave

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[Karen K]

I now looked at the server of EUMETSAT. There are a lot of different kinds of satellite pictures and calculated maps available there.

weewx-DWD EUMETSAT download example

EUMETSAT website. Click "API access" there and then "WMS" and get a list of available layers.

[Karen K]

I added an example to download a map from the Finnish Meteorological Institute. They offer a long list of layers.