Trenberth Southern Oscillation Index (SOI) from NCAR
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下载链接：
https://cmr.earthdata.nasa.gov/search/concepts/C1214606919-SCIOPS.html
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资源简介：
The Southern Oscillation Index (SOI) at NCAR is computed using monthly
mean sea level pressures at Tahiti (T) and Darwin (D). The SOI [T-D]
is an optimal index that combines the Southern Oscillation into one
series. These SOI values are slightly different than those calculated
by the Climate Prediction Center ("http://www.cpc.ncep.noaa.gov/") due
to the normalization used. The [T+D] series is a measure of small
scale and/or transient phenomena that are not part of the large scale
Southern Oscillation.
To access the SOI data at NCAR, see:
"http://www.cgd.ucar.edu/cas/catalog/climind/soi.html"
or
"ftp://ftp.cgd.ucar.edu/pub/shea/soi_dir/"
提供机构：
SCIOPS
