The ESRL website will be unavailable for 24 hours starting Friday, March 6th at 5:00pm MT due to building maintenance.
 

20CR Climate Indices

Monthly

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

Daily

Tools to Plot/Use 20CR Climate Indices

  1. Climate Index Plotting Page
  2. GCOS Mapping Page