ユーザー別ナビ |
  • 一般の方
  • 研究関係者の方
  • 環境問題に関心のある方
2018年2月22日

Modeling the relationship between the urban development and subsurface warming in seven Asian megacities.

Ichinose, T. and K. Liu

論文情報

Modeling the relationship between the urban development and subsurface warming in seven Asian megacities.

著者:Ichinose, T. and K. Liu

発表年:2018
掲載雑誌:Sustainable Cities and Society, 38, 560-570

論文へのリンク(英文のみ)

キーワード

Asia; Land cover change; Subsurface temperature; Urbanization; Urban warming

概要

The authors used a mesoscale climate model, CSU-MM and digital land-use data from seven Asian megacities to simulate ground surface temperature (Tsfc) related to urbanization for three discrete years of the 20th century. The variability of Tsfc was compared with the measured vertical profiles of subsurface temperature in the targeted megacities, which were expected to record the historical time-series of Tsfc. Considering a calm and clear day of the hottest season, results showed that Tsfc increased about 1.1 K 100 y−1 during the 20th century. Considering the seasonal climate variability, simulations were run for three additional cases (rainy day in the hottest season; clear day and rainy day in the coldest or rainy season) for each year in each megacity. The difference between the rates of change of Tsfc in Bangkok (0.9 K 100 y−1) and Tokyo (1.9 K 100 y−1) is considerable, which suggests that the differences of annual climatic variability are important for the analyses of urban subsurface warming. The authors conclude historical digital land-use data are useful to study past urban climate change in numerical simulation, and difference of annual climatic variability brings the difference of subsurface warming in each megacity.

主な論文の解説一覧に戻る