日本地球惑星科学連合2019年大会

講演情報

[E] ポスター発表

セッション記号 H (地球人間圏科学) » H-TT 計測技術・研究手法

[H-TT19] Geographic Information Systems and Cartography

2019年5月30日(木) 10:45 〜 12:15 ポスター会場 (幕張メッセ国際展示場 8ホール)

コンビーナ:小口 高(東京大学空間情報科学研究センター)、村山 祐司(筑波大学大学院生命環境科学研究科地球環境科学専攻)、若林 芳樹(首都大学東京大学院都市環境科学研究科)

[HTT19-P01] Monitoring and Simulating Land Use/Cover Changes and its Impact on Land Surface Temperature in Sapporo City, Japan

*汝慈 王1村山 祐司1 (1.筑波大学)

キーワード:地理情報科学、都市ヒートアイランド、地表面温度、土地利用変化、札幌市

In recent years, urban heat island phenomenon (UHI) which prevails in many cities worldwide has caused broad public concern. UHI phenomenon impairs healthy urban development and causes excessive energy consumption, climatic and environmental deterioration. Land use/cover changes are one of the most crucial variables influencing on UHI. Therefore, monitoring and simulating land use/cover changes and analyzing its effects on LST are essential for healthy urban development. This study aims to capture the impact of land use/cover on LST and simulate the LST under various land use/cover scenarios in Sapporo city, Japan. At first, we monitored the land use/cover changes from 1985 to 2015 and detect the change of LST concerning land use/cover distribution. Then, we predicted the future conditions of LST based on various land use/cover scenarios. The results show that the LST differs according to land use/cover types, and the proportion of land use/cover types is the most significant factor affecting LST. The findings also indicate that the built-up area and paddy field have the highest average LST, while the green space and water area help cool the city. In the future, the green area such as urban green parks and grassland should be planned in the city to mitigate the UHI phenomenon. It reveals the spatial characterization of LST which provides significant insights for government and city planners.