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

研究成果: ジャーナルへの寄稿学術誌査読

23 被引用数 (Scopus)

抄録

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.

本文言語英語
ページ(範囲)1-4
ページ数4
ジャーナルScientific Online Letters on the Atmosphere
9
1
DOI
出版ステータス出版済み - 2013

!!!All Science Journal Classification (ASJC) codes

  • 大気科学

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