Influence of the monsoon variability and sea surface temperature front on the explosive cyclone activity in the vicinity of Japan during northern winter

Satoshi Iizuka, Minako Shiota, Ryuichi Kawamura, Hiroaki Hatsushika

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The possible impact of the winter monsoon intensity and sea surface temperature (SST) gradient on the activity of explosively developing extratropical cyclones around Japan is investigated using the Weather Research Forecasting model. Two independent long-term integrations over 18 winters from 1993/94 to 2010/2011 are conducted using prescribed observed SST data (OS run) and spatially smoothed data (SS run). The OS run is successful in reproducing the spatial distributions of the explosive cyclone activity in the vicinity of Japan under both strong and weak winter monsoon conditions. Under strong monsoon conditions, the Kuroshio, the Kuroshio Extension, and the Japan Sea subpolar fronts give rise to enhanced near-surface baroclinicity through the increase in heat and moisture fluxes from the ocean surface, resulting in frequent occurrence of the explosive cyclone activity along those fronts.

Original languageEnglish
Pages (from-to)1-4
Number of pages4
JournalScientific Online Letters on the Atmosphere
Volume9
Issue number1
DOIs
Publication statusPublished - May 7 2013

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cyclone
explosive
monsoon
sea surface temperature
winter
moisture flux
temperature gradient
heat flux
sea surface
spatial distribution
weather
sea
extratropical cyclone

All Science Journal Classification (ASJC) codes

  • Atmospheric Science

Cite this

Influence of the monsoon variability and sea surface temperature front on the explosive cyclone activity in the vicinity of Japan during northern winter. / Iizuka, Satoshi; Shiota, Minako; Kawamura, Ryuichi; Hatsushika, Hiroaki.

In: Scientific Online Letters on the Atmosphere, Vol. 9, No. 1, 07.05.2013, p. 1-4.

Research output: Contribution to journalArticle

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