Extension proposal for zarr accumulation

[hailiangzhang]

This PR contains the Zarr extension proposal for a method that we developed at NASA GESDISC -- Zarr-based Chunk-level Accumulation, which provides fast and cost-efficient data analysis services based on chunk level statistics. The proposal mainly includes the Zarr group structure and attribute schema for the chunk level statistics.

This related PR against zarr-specs repo is here.

[MSanKeys963]

Hi @hailiangzhang. Thanks for sending the ZEP.

Apart from one minor suggestion above, it looks good in completeness.
Let me know when you want me to merge it. We can continue further discussions for this ZEP over at zarr-developers/zarr-specs#205.

[hailiangzhang]

zarr-developers/zarr-specs#205

Hi @hailiangzhang. Thanks for sending the ZEP.

Apart from one minor suggestion above, it looks good in completeness. Let me know when you want me to merge it. We can continue further discussions for this ZEP over at zarr-developers/zarr-specs#205.

Hi @MSanKeys963 , thanks a lot for your comments, and I have committed it. And yes, let's continue discussions from the zarr-spec PR, and please feel free to merge it if it's okay.

[MSanKeys963]

Thanks for your work here, @hailiangzhang!

ZEP0005 can be read here: https://zarr.dev/zeps/draft/ZEP0005.html