日本地球惑星科学連合2019年大会

講演情報

[J] ポスター発表

セッション記号 A (大気水圏科学) » A-CG 大気海洋・環境科学複合領域・一般

[A-CG43] 気候変動への適応とその社会実装

2019年5月26日(日) 13:45 〜 15:15 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:石川 洋一(海洋研究開発機構)、渡辺 真吾(国立研究開発法人海洋研究開発機構)、大楽 浩司(防災科学技術研究所)

[ACG43-P01] Impact of urbanization on the surface air temperature across Bulgaria

*Lidia Lazarova Vitanova1Hiroyuki Kusaka2 (1.Graduate School of Life and Environmental Sciences, the University of Tsukuba、2.Center for Computational Sciences, the University of Tsukuba)

キーワード:Urbanization, Weather Research and Forecasting model, Bulgarian cities

This study investigated the impact of urbanization on the surface air temperatures across Bulgaria. Our target locations are the major Bulgarian cities – Sofia, Plovdiv and Varna. In this study, we use the Weather Research and Forecasting (WRF) model with 1-km horizontal resolution to simulate month of July between 2011 and 2013. First, the results from the control simulation were verified against observations. The results show that the WRF model reproduced reasonably the diurnal temperature distributions for both of urban and rural areas. The model mean biases ranged from −0.76 to 0.19 °C. Second, the impacts of the urbanization on the surface air temperatures are evaluated. The results showed significant nocturnal temperatures increases by 2.6, 2.9 and 2.2 °C in Sofia, Plovdiv and Varna compared to those in the rural areas, while in daytime these increases are around 1.0 °C.