SPARC (Stratosphere-troposphere Processes And their Role in Climate) is core project of the World Climate Research Programme. SPARC themes and activities address areas of societal concern such as:
- Atmospheric Chemistry and Aerosols
- Climate Variability and Change
- Polar Processes
NCAR's Climate Data Guide (CDG) provides more information (search SPARC) including strengths and weaknesses of assorted data sets.