Add TISR 212 and LSM 172

[loliverhennigh]

It would be great to see if this dataset could be used to train machine learning models such as graphcast. There are a couple of variable missing though, (taken from here, https://arxiv.org/pdf/2212.12794.pdf) I think the two missing fields are Incident solar radiation and land sea mask. Any interest in including these or even trying to get all the era5 variables available.

[alxmrs]

Yes, definitely stay tuned. This is within our immediate plans :)

[alxmrs]

We're going to be a bit slow in updating docs & code on this, but please check gs://gcp-public-data-arco-era5/ar. It should have what you're looking for 😉 .