Similar to the grib2zarr conversion create in the rechunk2zarr the target dataset as empty set on the store. Then use write mode "r+" to write the chunks straight from the buffers to the store. Investigate if async IO could be used to overlap read,merge and write.
Similar to the grib2zarr conversion create in the rechunk2zarr the target dataset as empty set on the store. Then use write mode "r+" to write the chunks straight from the buffers to the store. Investigate if async IO could be used to overlap read,merge and write.