•Based on previous
experience and on better understanding of climate processes, several cycles are needed for data
archiving and
processing within large climate-related data projects
•Technical progress
requires to repeat cycles of climate data processing & archiving
•All stages of
archiving must be available: you need to reutilize data collections, to update them and to do the
recalculations of climate
products
•Normally, these
cycles must be repeated once or twice per decade