True, but in fact, the Google ERA5 public data suffers from the exact chunking problem described in the post: it's optimized for spatial queries, not timeseries queries. I just ran a benchmark, and it took me 20 minutes to pull a timeseries of a single variable at a single point!
This highlights the needs for timeseries-optimized chunking if that is your anticipated usage pattern.
This highlights the needs for timeseries-optimized chunking if that is your anticipated usage pattern.