Methodology of Data Processing: samples of multi-level structure of climate Data products
•COADS – Comprehensive Ocean – Atmosphere Data Set
•COADS produced a lot of climate derivatives based on observational data
•REANALYSIS Projects: the main goal is to produce meteorological fields for further climate studies and modelling
•REANALYSIS Project of NCAR/NCEP (USA) produced a lot of derivatives. Multi-level structure of these derivatives is strongly evident