Relationship between City Size, Coastal Land Use, and Summer Daytime Air Temperature Rise with Distance from Coast

Climate

Takahiro Tanaka¹  Hiroshi Miyazaki²  Hideki Takebayashi³  Kosuke Kittaka³  Masakazu Moriyama³  Hironori Watanabe⁴ 

[1] Department of Architecture, Hiroshima University, Higashi-Hiroshima 739-8527, Japan;Department of Architecture, Kansai University, Suita 564-8680, Japan;Department of Architecture, Kobe University, Kobe 657-8501, Japan;Department of Architecture, Tohoku Institute of Technology, Sendai 982-8577, Japan;

关键词: distance from coast;    air temperature;    land use;    city size;    Japan;    Germany;   

DOI  :  10.3390/cli6040084

来源: DOAJ

【 摘 要 】

The relationship between city size, coastal land use, and air temperature rise with distance from coast during summer day is analyzed using the meso-scale weather research and forecasting (WRF) model in five coastal cities in Japan with different sizes and coastal land use (Tokyo, Osaka, Nagoya, Hiroshima, and Sendai) and inland cities in Germany (Berlin, Essen, and Karlsruhe). Air temperature increased as distance from the coast increased, reached its maximum, and then decreased slightly. In Nagoya and Sendai, the amount of urban land use in coastal areas is less than the other three cities, where air temperature is a little lower. As a result, air temperature difference between coastal and inland urban area is small and the curve of air temperature rise is smaller than those in Tokyo and Osaka. In Sendai, air temperature in the inland urban area is the same as in the other cities, but air temperature in the coastal urban area is a little lower than the other cities, due to an approximate one degree lower sea surface temperature being influenced by the latitude. In three German cities, the urban boundary layer may not develop sufficiently because the fetch distance is not enough.

【 授权许可】

Unknown