The building maintenance scheduled for Friday February 27th at 5:00pm MST has been postponed until 5:00pm March 6th. PSD's website will be down during the maintenance.
We have transitioned the data files from netCDF3 to netCDF4-classic format (transition date: Aug 14th).
Plot Archive of 20th Century Reanalysis, 1871 - 2008
Choose reanalysis plot:
Sample figure: Sea-Level Pressure / 500mb Height
PROVISIONAL DATA - Subject to Revision.
This is a Research and Development Application