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.

20CR Climate Indices


Climate IndexAnnual Average Plot
Antarctic Oscillation (AAO)
North Pacific Index (NP)
Arctic Oscillation (AO)
North Atlantic Oscillation (NAO)
Southern Oscillation (SOI)


Tools to Plot/Use 20CR Climate Indices

  1. Climate Index Plotting Page
  2. GCOS Mapping Page