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contributor authorWang, Yi-Hui
contributor authorLiu, W. Timothy
date accessioned2017-06-09T17:11:48Z
date available2017-06-09T17:11:48Z
date copyright2015/12/01
date issued2015
identifier issn0894-8755
identifier otherams-80935.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4223882
description abstracthis study investigates the regional atmospheric response to the Kuroshio Extension (KE) using a combination of multiple satellite observations and reanalysis data from boreal winter over a period of at least a decade. The goal is to understand the relationship between KE variations and atmospheric responses at low frequencies. A climate index is used to measure the interannual to decadal KE variability, which leaves remarkable imprints on the mesoscale sea surface temperature (SST). Clear spatial coherence between the SST signals and frontal-scale atmospheric variables, including surface wind convergence, vertical velocity, precipitation, and clouds, is identified by linear regression analysis. Consistent with previous studies, the penetrating effect of the KE variability on the free atmosphere is found. The westward tilt of the atmospheric response above the KE near 500 hPa is revealed. The difference in the associations of frontal-scale air temperature and geopotential height with the KE variability between the satellite observations and the reanalysis data suggests an imperfect interpretation of frontal-scale oceanic forcing on the overlying atmosphere in the reanalysis assimilation system.
publisherAmerican Meteorological Society
titleObservational Evidence of Frontal-Scale Atmospheric Responses to Kuroshio Extension Variability
typeJournal Paper
journal volume28
journal issue23
journal titleJournal of Climate
identifier doi10.1175/JCLI-D-14-00829.1
journal fristpage9459
journal lastpage9472
treeJournal of Climate:;2015:;volume( 028 ):;issue: 023
contenttypeFulltext


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