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城市土地表面温度的特定气候趋势:对432个城市 (2014-2024) 的全球分析
Hossein Shafizadeh-Moghadam1, Tingting Xu2, Yuji Murayama3
1Department of Water Engineering and Management, Tarbiat Modares University, Tehran, Iran.
Journal of environmental management
|October 31, 2025
概括
城市土地表面温度 (ULST) 显示出显著的变暖趋势,特别是在干旱,温带和寒冷气候的夜间. 热带城市保持稳定,突出了对特定气候的城市耐热战略的需求.
科学领域:
- 环境科学 环境科学
- 气候科学 气候科学
- 城市规划 城市规划
背景情况:
- 城市土地表面温度 (ULST) 是城市热岛的一个关键指标.
- 了解ULST的十年趋势对于制定有效的气候适应战略至关重要.
- 全球气候变化需要检查城市热环境在不同气候区的演变情况.
研究的目的:
- 分析城市土地表面温度 (ULST) 的2014-2024年趋势,在干旱,寒冷,温带和热带气候的432个城市.
- 在ULST变化中识别不同的气候特异性和日间模式.
- 通过了解气候控制的热轨迹,为城市弹性战略提供信息.
主要方法:
- 使用中等分辨率成像光谱辐射仪 (MODIS) 对ULST数据的观测.
- 应用曼-肯达尔趋势测试来评估温度变化的统计学意义.
- 进行了气候特异性,日间,温暖季节和相位指数分析.
主要成果:
- 在温和气候和寒冷气候中观察到显著的白天变暖.
- 在干旱,温和和寒冷的气候中检测到明显的夜间变暖;热带城市没有显著的趋势.
- 寒冷和温带城市表现出持续的白天变暖,干旱城市表现出夜间加剧,热带城市相对稳定.
- 夜间的热量延伸到肩膀季节,增加了整体的热量暴露.
结论:
- 背景气候显著影响城市热轨迹和日间温度变化.
- 城市弹性战略必须适应特定的气候制度和日间模式.
- 针对干旱/温带地区的夜间热量,解决寒冷地区的加速变暖问题,以及管理热带地区的日间不对称性至关重要.
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