A Numerical Study on the Nocturnal Frontogenesis of the Sea-breeze Front

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概要

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• A numerical simulation of a sea-breeze front (SBF) is carried out to investigate the nocturnal frontogenesis (FG) phenomenon that occurs as the SBF propagates inland during the nighttime. At first, we reproduce the FG event of the nighttime SBF based on high-resolution numerical modeling. Then, to reveal its formation mechanism, the FG equation is used, and contributions of each term in the FG equation are estimated for explaining this nocturnal FG event. The results show that the nocturnal FG event of the nighttime SBF : (1) is mostly attributed to the confluence effect due to the horizontal velocity convergence and intensification of the horizontal potential temperature gradient at the front ; (2) is partly attributed to the no significant tendency of the turbulence effect associated with the surface cooling.

• 社団法人日本気象学会の論文
• 2004-04-23

著者

• WANG Zifa

  Institute of Atmospheric Physics

• Ogawa Satoshi

  Research Institute Of Electrical Communication Graduate School Of Information Science Tohoku Univers

• Wang Zifa

  Institute Of Atmospheric Physics Chinese Academy Of Sciences

• Sha Weiming

  Geophysical Institute Graduate School Of Science Tohoku University

• Iwasaki T

  Geophysical Institute Graduate School Of Science Tohoku University

• Sha W

  Geophysical Institute Graduate School Of Science Tohoku University

• Ogawa Satoshi

  Research Institute Of Electrical Communication Graduate School Of Information Science Tohoku Univers

• OGAWA Satoshi

  Geophysical Institute, Graduate School of Science, Tohoku University

• IWASAKI Toshiki

  Geophysical Institute, Graduate School of Science, Tohoku University

• Ogawa Satoshi

  Geophysical Institute Graduate School Of Science Tohoku University

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