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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 Aug 2021
Update Status: Periodically updated
Get Data:
SOI: Standard PSL 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/.
References:
This page hosted by: NOAA Physical Sciences Laboratory (webmaster.psl@noaa.gov) http://psl.noaa.gov/gcos_wgsp/Timeseries/SOI/index.html |