Typhoon No. 10 path prediction expert: “Difficult due to high water temperature in the Sea of Japan”
Experts on typhoon mechanisms have analyzed that one of the reasons why it was difficult to predict the course of Typhoon No. 10, which brought heavy rain to the Japanese archipelago, was ``high seawater temperatures in the Sea of Japan.’’
台風のメカニズムに詳しい京都大学防災研究所の伊藤耕介准教授は、今回の台風10号の速度が遅かったことについて、偏西風が例年よりも北に位置していたことを要因にあげています
Associate Professor Kosuke Ito of the Disaster Prevention Research Institute, Kyoto University, who is an expert on typhoon mechanisms, attributes the slow speed of Typhoon No. 10 to the fact that the westerly winds were located further north than in previous years.
Associate Professor Ito points out that the reason why the westerly winds were located to the north is that seawater temperatures in the Sea of Japan were 3 to 5 degrees warmer than usual.
As a result, warm air pushed north, causing westerly winds to move north, and because the typhoon was located in the northern part of the Sea of Japan, it moved slowly without riding on the winds.
In addition, it was difficult to predict the impact that a type of low pressure called a cold vortex that formed near Typhoon No. 10 would have on the typhoon’s path.
伊藤耕介准教授は「これほど予想が外れるのは珍しいことだ
Associate Professor Kosuke Ito said, ``It’s rare for predictions to be so wrong.
We would like to find out the cause of this issue in the future.”
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