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Trends and Variations of Ocean Surface Latent Heat Flux: Results from GSSTF2c Data SetTrends and variations of Goddard Satellite-based Surface Turbulent Fluxes (GSSTF) version 2c (GSSTF2c) latent heat flux (LHF) are examined. This version of LHF takes account of the correction in Earth incidence angle. The trend of global mean LHF for GSSTF2c is much reduced relative to GSSTF version 2b Set 1 and Set 2 for the same period 1988-2008. Temporal increase of GSSTF2c LHF in the two decades is 11.0%, in which 3.1%, 5.8%, and 2.1% are attributed to the increase in wind, the increase in sea surface saturated air humidity, and the decrease in near-surface air humidity, respectively. The first empirical orthogonal function of LHF is a conventional El Nino Southern Oscillation (ENSO) mode. However, the trends in LHF are independent of conventional ENSO phenomena. After removing ENSO signal, the pattern of LHF trends is primarily determined by the pattern of air-sea humidity difference trends.
Document ID
20140013403
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Gao, Si
(George Mason Univ. Fairfax, VA, United States)
Chiu, Long S.
(George Mason Univ. Fairfax, VA, United States)
Shie, Chung-Lin
(Maryland Univ. Baltimore County Baltimore, MD, United States)
Date Acquired
November 6, 2014
Publication Date
January 31, 2013
Publication Information
Publication: Geophysical Research Letters
Volume: 40
Issue: 2
Subject Category
Meteorology And Climatology
Report/Patent Number
GSFC-E-DAA-TN12625
Funding Number(s)
CONTRACT_GRANT: NNX10AT36A
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
global mean
GSSTF2c
ocean surface latent heat flux
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