Teleconnections

Spatially and temporally large-scale anomalies that influence the variability of the atmospheric circulation
  • Arctic Oscillation (AO)
    Information on the Arctic Oscillation (AO), a large scale mode of climate variability, also referred to as the Northern Hemisphere annular mode.
  • El Niño/Southern Oscillation (ENSO)
    Information on the El Nino Southern Oscillation (ENSO), a periodic fluctuation in sea surface temperature and air pressure in the equatorial Pacific Ocean.
    • Zonal Winds
      Equatorial Pacific Zonal Winds maps and animations
    • Sea Surface Temperatures (SST)
      Information on the El Nino Southern Oscillation (ENSO), a periodic fluctuation in sea surface temperature and air pressure in the equatorial Pacific Ocean.
    • TAO/Triton Sea Temps
      TAO/Triton Equatorial Pacific Sea Surface and Sub-Sea Surface Temperatures
    • SST Anomalies
      Information on the El Nino Southern Oscillation (ENSO), a periodic fluctuation in sea surface temperature and air pressure in the equatorial Pacific Ocean.
    • Outgoing Longwave Radiation (OLR)
      Information on the El Nino Southern Oscillation (ENSO), a periodic fluctuation in sea surface temperature and air pressure in the equatorial Pacific Ocean.
    • Southern Oscillation Index (SOI)
      Information on the El Nino Southern Oscillation (ENSO), a periodic fluctuation in sea surface temperature and air pressure in the equatorial Pacific Ocean.
    • Sea Level Anomalies
  • North Atlantic Oscillation (NAO)
    Information on the North Atlantic Oscillation (NAO) index, which is based on the surface sea-level pressure difference between the Subtropical (Azores) High and the Subpolar Low.
  • Pacific Decadal Oscillation (PDO)
    Information on the Pacific Decadal Oscillation (PDO), often described as a long-lived El Nino-like pattern of Pacific climate variability.
  • Pacific-North America Index (PNA)
    Information the Pacific-North America (PNA) pattern, one of the most prominent modes of low-frequency variability in the Northern Hemisphere extratropics, appearing in all months except June and July.