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Title: Causes of Ocean Surface temperature Changes in Atlantic andPacific Topical Cyclogenesis Regions

Causes of Ocean Surface temperature Changes in Atlantic andPacific Topical Cyclogenesis Regions Previous research has identified links between changes in sea surface temperature (SST) and hurricane intensity. We use climate models to study the possible causes of SST changes in Atlantic and Pacific tropical cyclogenesis regions. The observed SST increases in these regions range from 0.32 to 0.67 C over the 20th century. The 22 climate models examined here suggest that century-timescale SST changes of this magnitude cannot be explained solely by unforced variability of the climate system, even under conservative assumptions regarding the magnitude of this variability. Model simulations that include external forcing by combined anthropogenic and natural factors are generally capable of replicating observed SST changes in both tropical cyclogenesis regions.
Authors: ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
OSTI Identifier:OSTI ID: 922814
Report Number(s):LBNL--61597-JArt.
R&D Project: K11130; BnR: KP1206000; TRN: US200804%%913
DOE Contract Number:DE-AC02-05CH11231
Resource Type:Journal Article
Resource Relation:Journal Name: Proceedings of the National Academy ofSciences; Journal Volume: 103; Journal Issue: 38; Related Information: Journal Publication Date: 09/19/2006
Research Org:COLLABORATION - LLNL
Country of Publication:United States
Language:English
Subject: 99; CLIMATE MODELS; CLIMATES; HURRICANES; SEAS