[KristianHMoller]

KNMI have started producing MTG-CPP data based on the MTG satellite.
This has higher spatial and temporal resolution compared to MSG-CPP.
This PR adds the option of using this new dataset.

It can be invoked by calling sunflow with the flag --dataset KNMI_MTG.

Additionally, for transparency in the output, satellite is now a global attribute printed in the output. This means that it is now a required field in config.yaml for each configuration. This should avoid potential confusion regarding which satellite the output is based on images from.

[KristianHMoller]

Verified to work for both --run_mode download (default) and --run_mode files

[ElloiseFangelLloyd]

Runs for me for --run_mode download (given an API key)! No problems from my end, looks good.

[ElloiseFangelLloyd]

Works for me running with the defaults!

[KristianHMoller]

Add a label for the satellite used to the metadata.

Edit: DONE

[KristianHMoller]

KNMI_MTG is not made the default yet.

[KristianHMoller]

@ElloiseFangelLloyd can this be approved and merged?
I changed my mind on having this PR make KNMI_MTG the default until we are ready to switch operationally. So the default remains unchanged

[ElloiseFangelLloyd]

I approved in this review when I tested it

Works for me running with the defaults!

No problem with me having the defaults be unchanged. I think the merge still appears as "Blocked" because the repo requires the review of someone with write access...it appears from my end that you need approving review from @irenelivia.

[KristianHMoller]

Could I get you to try approving it again @ElloiseFangelLloyd ? I have tried increasing your access level.