Methodology of Data Processing: samples of multi-level structure of climate Data products
•CARDS (Comprehensive Aerological Reference Data Set) – a joint project of NCDC/NOAA, USA, and RIHMI-WDC, Russia
•MONADS –CARDS Derivative – MONthly Aerological Data Set – Monthly statistics for climate research, calculated from CARDS observational data
•Further aerological climate products are intended to be calculated from MONADS, not from CARDS observational Data