Some sort of eof.

Time Interval: Monthly
Time Coverage: 1950 to 2005
Update Status: Periodically updated

Get Data:

AO: Standard PSD 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 CNOAA/PC

This page hosted by: NOAA ESRL Physical Sciences Division Document maintained by Cathy Smith (cathy.smith@noaa.gov) Updated: Oct 10, 2008 09:54:05 MDT http://www.cdc.noaa.gov/gcos_wgsp/Timeseries/AO/index.html