|
|
|
| The impact of urbanization on heavy precipitation in the eastern Qinghai Plateau under the background of new climate state |
| Sun Wenhui1,2, Lei Shengguo2 |
1. Qinghai Provincial Key Laboratory of Disaster Prevention and Mitigation,Xining 810000;
2. Haidong Meteorological Bureau,Pingan 810600 |
|
|
|
|
Abstract In order to explore the impact of urbanization on heavy precipitation in the eastern part of Qinghai Plateau,based on methods such as percentile method and urban-rural comparison,the evolution characteristics of extreme precipitation events in the eastern part of Qinghai Plateau and the differential characteristics of heavy precipitation events in urban and suburban stations at different stages of urbanization development in the eastern part of Qinghai Plateau were evaluated and analyzed.The results show that the trend of extreme precipitation intensity and the rate of change in precipitation intensity in the eastern urban area of Qinghai Plateau are larger than those in the suburbs,and the difference between the suburbs shows a significant increasing trend over time.Urbanization contributes 86％ and 42％ to extreme precipitation and extreme heavy precipitation,respectively.There are significant differences in suburban areas during different stages of urbanization,with the frequency of precipitation occurring significantly higher during the rapid period than during the slow period,indicating that the urban effect is evident during the rapid period.
|
|
Received: 23 December 2024
|
|
|
|
|
|
| [1] |
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.
|
| [2] |
朱秀迪,张强,孙鹏.北京市快速城市化对短时间尺度降水时空特征影响及成因简[J].地理学报,2018,73(11):2086-2104.
|
| [3] |
何玉秀,许有鹏,李子贻,等.城镇化对极端降水的影响及其贡献率研究:以太湖平原地区为例[J].湖泊科学,2022,34(1):262-271.
|
| [4] |
IPCC.Climate change 2022:mitigation of climate change [M].Cambridge:Cambridge University Press,2022.
|
| [5] |
梅梅,侯威,周星妍.新、旧气候态差异及对中国地区气候和极端事件评估业务的影响[J].气候变化研究进展,2022,18(6):653-669.
|
| [6] |
王辉,吴文俊,王广.昆明市极端降水事件演变特征及城市效应[J].水资源保护,2021,37(4):61-68.
|
|
|
|
2025, Vol. 42 
