[Personnel: Last_Name='MITCHELL', First_Name='TODD']
Southern Oscillation Index (SOI) (NCEP)Entry ID: JISAO_SOI_SLP_TIMESERIES
Abstract: The University of Washington Joint Institute for the Study of the
Atmosphere and Ocean (JISAO) offers a Southern Oscillation Index (SOI)
dataset. The SOI is calculated from Tahiti and Darwin, Australia
Sea-Level Pressure (SLP) as follows (Chelliah, M., 1990, J. Climate,
3, 158-160 ):
SOI(month,year) = ( T(month,year) - D(month,year) )
where: T & D are anomalies of Tahiti and Darwin SLP that have been
normalized by the standard deviation of the monthly values of the
respective index for all months combined for the years 1951 to 1980.
S is the standard deviation of the numerator for all months combined
for the years 1951 to 1980.
This data may be freely downloaded from the JISAO WWW site.
The time series is provided by the NCEP Climate Prediction Center.
[Summary Adapted from the JISAO Homepage]
Data Set Citation
Dataset Originator/Creator: NOAA/NCEP Climate Prediction Center
Dataset Title: Southern Oscillation Index (SOI) (NCEP)
Dataset Release Place: Seattle, Washington, USA
Dataset Publisher: Joint Institute for the Study of the Atmosphere and Ocean (JISAO)
Start Date: 1882-01-01Stop Date: 1996-04-30
ISO Topic Category
Use Constraints Please cite the dataset originator if you use this data.
Data Set Progress
Distribution Media: Online (HTTP)
Distribution Format: ASCII
Role: DIF AUTHOR
Email: Scott.A.Ritz at nasa.gov
NASA Goddard Space Flight Center Global Change Master Directory
Province or State: Maryland
Postal Code: 20771
Chelliah, M. (1990), The global climate for June-August 1989: a season of near normal conditions in the tropical Pacific, J. Climate, 3, 158-160
Creation and Review Dates
DIF Creation Date: 1999-07-27
Last DIF Revision Date: 2011-04-04