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The SOI is defined as the normalized pressure difference between Tahiti and Darwin. There are several slight variations in the SOI values calculated at various centres. Here we supply the SOI (from CRU) which is based on the method given by Ropelewski and Jones (1987).
Time Interval: Monthly
Time Coverage: 1866 to 2006
Update Status: Periodically updated
Get Data:
SOI: Standard PSD Format (What is standard format?)
SOI: Original Format
Source:
Data is from CRU via the page http://www.cru.uea.ac.uk/cru/data/soi.htm.
References:
This page hosted by: NOAA ESRL Physical Sciences Division Document maintained by Cathy Smith (cathy.smith@noaa.gov) Updated: Oct 10, 2008 09:51:33 MDT http://www.cdc.noaa.gov/gcos_wgsp/Timeseries/SOI/index.html |