Speeding up ERA5 data access

ideas:

• globsim makes serial requests, but on the API, you can submit and queue multiple files
• best practice is 1 month at a time for hourly data
• can we do some of the processing on the CDS toolbox?
• new ERA5-cli tool
• Business solution meteomatics Weather API
• globsim makes 3 calls to era5 per time chunk, but it accesses the same dataset (single-level) twice!!
• requesting 12 months at the same time on the server (singlelevel) queues for 1h requesting 1 year takes about 1.5hr
• requesting 1 year takes about 1.5hr

reference:

• There were a bunch of docuumented delays in getting data from ERA5-complete, but should be faster for single-level Why it is much slower downloading from 'reanalysis-era5-complete'?