Contribution of urbanization to the increase of extreme heat events in an urban agglomeration in east China: Urbanization and the Increase of EHEs
Journal Article
·
· Geophysical Research Letters
- Institute of Island and Coastal Ecosystems, Ocean College, Zhejiang University, Zhoushan China
- Pacific Northwest National Laboratory, Richland Washington USA
- Department of Geosciences, Texas Tech University, Lubbock Texas USA
- School of Earth and Space Sciences, University of Science and Technology of China, Hefei China
- School of Geography and Planning, Sun Yat-sen University, Guangzhou China
- Shanghai Typhoon Institute of China Meteorological Administration, Shanghai China
The urban agglomeration of Yangtze River Delta (YRD) is emblematic of China’s rapid urbanization during the past decades. Based on homogenized daily maximum and minimum temperature data, the contributions of urbanization to trends of extreme temperature indices (ETIs) during summer in YRD are evaluated. Dynamically classifying the observational stations into urban and rural areas, this study presents unexplored changes in temperature extremes during the past four decades in the YRD region and quantifies the amplification of the positive trends in ETIs by the urban heat island effect. Overall, urbanization contributes to more than one third in the increase of intensity of extreme heat events in the region, which is comparable to the contribution of greenhouse gases. Compared to rural stations, more notable shifts to the right in the probability distribution of temperature and ETIs were observed in urban stations.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
- Sponsoring Organization:
- USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1373848
- Report Number(s):
- PNNL-SA-127213; KP1703010
- Journal Information:
- Geophysical Research Letters, Journal Name: Geophysical Research Letters Journal Issue: 13 Vol. 44; ISSN 0094-8276
- Publisher:
- American Geophysical Union
- Country of Publication:
- United States
- Language:
- English
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