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Southern Oscillation Index (SOI) at LDEO/IRI Climate Data Library

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Abstract: The Southern Oscillation Index (SOI) is the difference between the
standardized Tahiti Sea Level Pressure (SLP) and the standardized
Darwin SLP measurements. The data was originally collected by

The SOI runs from 1951 to present. An earlier standardized SOI runs from 1881
to present.
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Description: Southern Oscillation Index (SOI) data
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Geographic Coverage
Spatial coordinates   
  N: -12.0   S: -17.0   E: -149.0   W: 131.0

Data Set Citation
Dataset Originator/Creator: Cole, J.
Dataset Title: Southern Oscillation Index (SOI)
Dataset Release Place: Palisades, NY
Dataset Publisher: Lamont-Doherty Earth Observatory, Columbia University
Online Resource:
Parent DIF
This description is a member of a collection. The collection is described in

Temporal Coverage
Start Date: 1951-01-01

Start Date: 1881-01-01
Location Keywords
Data Resolution
Temporal Resolution: monthly
Temporal Resolution Range: Monthly Climatology
Data Set Progress
Originating Center
Data Center
Climate Data Library, International Research Institute for Climate Prediction, Lamont-Doherty Earth Observatory, Columbia University Supplemental Info
Data Center URL:

Data Center Personnel
Phone: (845) 680-4450
Fax: (845) 680-4864
Email: benno at
Contact Address:
Data Library Manager
International Research Institute for Climate Prediction
Lamont-Doherty Earth Observatory
Columbia University
City: Palisades
Province or State: NY
Postal Code: 10964-8000
Country: USA
Distribution Media: WWW
Fees: none
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2000-08-30
Last DIF Revision Date: 2016-11-18
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