大気・海洋変動指標と台風特性および気候変動との関連性に関する研究

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タイトル別名
  • Estimation of Climatic Variations in Relation to Large-scale Atmospheric and Oceanic Interaction
  • タイキ カイヨウ ヘンドウ シヒョウ ト タイフウ トクセイ オヨビ キコウ ヘンドウ ト ノ カンレンセイ ニ カンスル ケンキュウ

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抄録

Climate variabilities in characterictics of typhoon, annual precipitation and SST are investigated in connection with the indecies of atomospher- ocean interaction such as MEI, PDO, NAO and AO. Spectra of annual time serries of the climate indecies were analyed to find a relationship between the climate change and the indecies of ocean-atmosphere interaction. A five-year variation in an annual mean minimum pressure of typhoon is found to have the same period of MEI and about one year time lag. The other climate indecies are found to change with the indecies of large-scale atmosphere-ocean interaction, such as MEI and PDO. The activity of typhoon and climate valiations are estimated employing linear system analysis with the impulse response functions and are compared with the measured climate data.

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