Some PSD datasets and products are not up-to-date due to a system problem. We are working on a fix.
 

NCEP Reanalysis Electronic Atlas

Sorry, the Atlas is currently not working. We will try to fix it soon.
Reanalysis Atlas unavailable.

*Description of the NCEP Reanalysis model * Educational uses of atlas: from 1997 AMS talk and using the atlas to teach about ENSO
* Reanalysis Activities at PSD * Other sources of reanalysis information:
NCEP  NCAR
*Descriptions of the atlas variable calculations