城市化对极端高温事件影响研究进展

被引:56
作者
杨续超 [1 ]
陈葆德 [2 ]
胡可嘉 [1 ]
机构
[1] 浙江大学海洋学院
[2] 不详
关键词
城市化; 气候变化; 极端高温; 超额死亡率;
D O I
暂无
中图分类号
P461.8 [];
学科分类号
摘要
目前有关城市热岛效应的时空分布特征及其对气温变化趋势的影响已有大量研究,但对于极端高温—热岛效应相互作用、城市化对高温热胁迫及其健康后果的影响等研究还不够深入,在进行未来气候变化预估时也很少考虑城市的影响。在气候变化、中国城市化快速发展和人口老龄化的背景下,这将严重低估城市未来的变暖幅度以及城市极端高温的健康风险。随着近年来气候变暖所导致的高温热浪事件频发,城市化对极端高温事件的影响引起了广泛关注。本文对国内外陆续开展的城市热岛效应影响极端高温及其长期趋势的观测事实、城市极端高温数值模拟、城市高温期间超额死亡率的流行病学研究等方面所取得的成果进行了系统性的总结和评述。大部分观测和数值模拟研究都发现,城市热岛效应加剧了城市极端高温发生的范围和强度,增加了城市居民的高温健康风险,对城市极端高温的长期上升趋势也有重要贡献;流行病学研究表明,城市化引起的热岛效应对极端高温期间的死亡率有着重要影响。最后,对城市化影响极端高温未来的研究方向进行了探讨。
引用
收藏
页码:1219 / 1228
页数:10
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