Preprint Article Version 1 This version is not peer-reviewed

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

Version 1 : Received: 18 September 2018 / Approved: 18 September 2018 / Online: 18 September 2018 (08:57:14 CEST)

A peer-reviewed article of this Preprint also exists.

Takebayashi, H.; Tanaka, T.; Moriyama, M.; Watanabe, H.; Miyazaki, H.; Kittaka, K. Relationship between City Size, Coastal Land Use, and Summer Daytime Air Temperature Rise with Distance from Coast. Climate 2018, 6, 84. Takebayashi, H.; Tanaka, T.; Moriyama, M.; Watanabe, H.; Miyazaki, H.; Kittaka, K. Relationship between City Size, Coastal Land Use, and Summer Daytime Air Temperature Rise with Distance from Coast. Climate 2018, 6, 84.

Journal reference: Climate 2018, 6, 84
DOI: 10.3390/cli6040084

Abstract

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 & 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 number 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 about one degree lower sea surface temperature influenced by the latitude. In three German cities, the urban boundary layer may not develop sufficiently because the fetch distance is not enough.

Subject Areas

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

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