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Arctic Oscillation (AO) Index

The loading pattern of the AO is defined by CPC as the leading mode of Empirical Orthogonal Function (EOF) analysis of monthly mean 1000mb height during 1979-2000 period.

Time Interval: Monthly
Time Coverage: 1950 to Sep 2020
Update Status: Periodically updated

Get Data:

AO: Standard PSL Format (What is standard format?)
AO: Original

Source:
Data is from NOAA/CPC at http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/ao_index.htmll
References:

  1. list at NOAA/CPC
[ SOI | NAO | Rec NAO | AO | AO 20thCR | PDO | NP | TPI | Iceland P | Azores P | Gilbralter P | Nagasaki P | Madras P ]
[ Niño1+2 | Niño3 | Niño3.4 | Niño 4 | AMO | Global T stations | Global T+SST (NASA) | Global T+SST (CRU) | Sunspots ]



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