Numerical simulation of the intense heat over the central Kanto Plain in 15–16 August 2007, using the regional meteorological model

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  • 領域気象モデルを用いた関東平野中央部における 2007 年 8 月 15–16 日の猛暑の数値シミュレーション
  • リョウイキ キショウ モデル オ モチイタ カントウ ヘイヤ チュウオウブ ニ オケル 2007ネン 8ガツ 15 16ニチ ノ モウショ ノ スウチ シミュレーション

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In this study, we performed the numerical simulation of 15 to 16 August, 2007, which was the typical case of the intense heat in the central Kanto Plain, using the regional meteorological model, in order to examine the factor in their heat. The maximum of surface temperature was found in the inland of northwestern Kanto Plain in both days. In 15 August, the mixed layer developed well, so that it was shown that the heat by solar radiation was the major factor in the increase of surface temperature. It was also found that no influence of sea breeze contributed to the formation of the maximum temperature area. On the other hand, the maximum of surface temperature was greatly influenced by the intense northwesterly foehn in 16 August, as well as the heat by solar radiation. It was suggested that the foehn did not follow the precipitation on the windward slope of the mountains.<br>

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