Collection 3 (aka Version 4)
As of Aug 31, 2007, GES DISC has a complete 5 year record of Collection 3 AIRS Level 1B, Level 2, and Level 3 data products.
By agreement with the AIRS Science Team, no new data will be processed into Collection 3.
Collection 3 L1B products will cease to be available after Oct 31, 2007; however, Collection 3 L2 and L3 products will continue to be available until further notice.
Collection 5 (aka Version 5)
Collection 5 has succeeded Collection 3 as the AIRS baseline collection.
Collection 5 L1B is complete from Aug 31, 2002 up through the current leading edge of forward production, while the L2 and L3 reprocessing campaign is underway -- L2 and L3 reprocessing is approximately 25% complete (as of the end of 08/2007), and is expected to be completed around the end of the year 2007.
Collection 5 forward processing at all product levels will continue until further notice.
Access to both Collection 3 and Collection 5 AIRS data products is detailed on the GES DISC AIRS data access page: