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earthobservations / gribmagic

Generic weather forecast downloader
https://community.panodata.org/t/developing-gribmagic/233
MIT License
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DWD COSMO-D2: Data is published in multiple grid variants #4

Closed amotl closed 3 years ago

amotl commented 3 years ago

Hi again,

we just found that data of DWD COSMO-D2 within the "temperature 2m" folder [1] is published with multiple grid variants like regular-lat-lon vs. rotated-lat-lon.

Parameter folders for "temperature" [2] also bring in the levels-axis like model-level vs. pressure-level as outlined within #3, so this folder and friends contains four (4) different sets of data in total.

As @mhaberler pointed out at https://github.com/earthobservations/gribmagic/issues/3#issuecomment-748515557, the docker-dwd-open-data-downloader by @EduardRosert also accounts for that by discriminating between "grids": ["regular-lat-lon", "rotated-lat-lon"], see models.json.

With kind regards, Andreas.

[1] https://opendata.dwd.de/weather/nwp/cosmo-d2/grib/00/t_2m/ [2] https://opendata.dwd.de/weather/nwp/cosmo-d2/grib/00/t/

mhaberler commented 3 years ago

I also found 'icosahedral' which is the native grid of these Icon-type models

mhaberler commented 3 years ago

note Cosmo-D2 is on the way out and is currently being replaced by Icon-D2 which is sort-of preproduction status (but stable as far as I can judge)

amotl commented 3 years ago

With #14, we are integrating the DWD GRIB Downloader and wrapping its features.