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Post World War II trends in tropical Pacific surface tradesMultidecadal time series of surface winds from central tropical Pacific islands are used to compute trends in the trade winds between the end of WWII and 1985. Over this period, averaged over the whole region, there is no statistically significant trend in speed or zonal or meridional wind (or pseudostress). However, there is some tendency, within a few degrees of the equator, toward weakening of the easterlies and increased meridional flow toward the equator. Anomalous conditions subsequent to the 1972-73 ENSO event make a considerable contribution to the long-term trends. The period 1974-80 has been noted previously to have been anomalous, and trends over that period are sharply greater than those over the longer records.
Document ID
19900033070
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Harrison, D. E.
(NOAA, Pacific Marine Environmental Laboratory, Seattle WA, United States)
Date Acquired
August 14, 2013
Publication Date
December 1, 1989
Publication Information
Publication: Journal of Climate
Volume: 2
ISSN: 0894-8755
Subject Category
Meteorology And Climatology
Accession Number
90A20125
Distribution Limits
Public
Copyright
Other

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