Chirps processing

After the 15th of the month, need to harvest daily data from

• GHCN
• GTS
• GSOD

and screen for false zeroes in GTS and GSOD daily to create

• fGTS
• fGSOD

and make pentad and monthly.

Also grab GHCN.v2 monthly, add all of the above into the CSCD db.

Run the 'all stations' version (MQB) of CHIRPS v1.7 monthly and CHIRPS v1.7 pentads.