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

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