| 全球变暖与城市效应共同作用下的极端天气气候事件变化的最新认知 |
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| 引用本文： | 袁宇锋,翟盘茂.全球变暖与城市效应共同作用下的极端天气气候事件变化的最新认知[J].大气科学学报,2022,45(2):161-166. |
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| 作者姓名： | 袁宇锋 翟盘茂 |
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| 作者单位： | 1. 南京信息工程大学 气象灾害预报预警与评估协同创新中心, 江苏 南京 210044;2. 中国气象科学研究院 灾害天气国家重点实验室, 北京 100081 |
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| 基金项目： | 国家重点基础研究发展计划项目(2018YFC1507700) |
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| 摘 要： | 近年来,城市气候变化问题引起高度关注.综合IPCC第一工作组第六次评估报告(IPCC AR6)关于气候变暖背景下城市对极端天气气候事件影响的评估,本文得到以下科学认识:城市化加剧了局部气候变暖,全球许多城市都面临更多更强的高温热浪事件;城市化使得诸多城市区域及其下风向极端降水增加,地表径流加强;沿海城市受到日益加剧的与...
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| 关 键 词： | 气候变化 城市化 极端天气气候事件 空气污染 风险 |
| 收稿时间： | 2021/10/11 0:00:00 |
| 修稿时间： | 2021/10/25 0:00:00 |
Latest understanding of extreme weather and climate events under global warming and urbanization influences |
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| YUAN Yufeng,ZHAI Panmao.Latest understanding of extreme weather and climate events under global warming and urbanization influences[J].大气科学学报,2022,45(2):161-166. |
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| Authors: | YUAN Yufeng ZHAI Panmao |
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| Institution: | 1. Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing 210044, China;2. State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081, China |
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| Abstract: | In recent years, urban climate change has received great attention.This paper synthesizes IPCC AR6 WGI assessment on urbanization influence on extreme weather and climate events in context of global climate change.The new understanding are summarized as follows:Urbanization has exacerbated local warming, thus large cities are facing more severe heat waves;More extreme precipitation events are observed in many urban areas and their downwind direction, resulting in increased surface runoff;Coastal cities are affected by increasing compound flooding related to sea-level rise;Urban pollutant emissions and building structures with unfavorable ventilation have enhanced regional pollution and increased surface ozone concentration.In the future, extreme temperature, extreme precipitation and air pollution are projected to occur more frequently and intensified in cities, thus lead to increased risks of climate change.Considering the rapid progress of China in urbanization, it is necessary to further strengthen observation network, mechanism study and numerical simulation for urban extreme events under global warming, thus to improve our understanding and enhance response capabilities in coping with urban extreme events. |
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| Keywords: | climate change urbanization extreme weather and climate events air pollution risk |
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