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Title: Contribution of urbanization to the increase of extreme heat events in an urban agglomeration in east China: Urbanization and the Increase of EHEs

Abstract

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.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [2]; ORCiD logo [1];  [5];  [6]
  1. Institute of Island and Coastal Ecosystems, Ocean College, Zhejiang University, Zhoushan China
  2. Pacific Northwest National Laboratory, Richland Washington USA
  3. Department of Geosciences, Texas Tech University, Lubbock Texas USA
  4. School of Earth and Space Sciences, University of Science and Technology of China, Hefei China
  5. School of Geography and Planning, Sun Yat-sen University, Guangzhou China
  6. Shanghai Typhoon Institute of China Meteorological Administration, Shanghai China
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
OSTI Identifier:
1373848
Report Number(s):
PNNL-SA-127213
Journal ID: ISSN 0094-8276; KP1703010
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Geophysical Research Letters
Additional Journal Information:
Journal Volume: 44; Journal Issue: 13; Journal ID: ISSN 0094-8276
Publisher:
American Geophysical Union
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES

Citation Formats

Yang, Xuchao, Ruby Leung, L., Zhao, Naizhuo, Zhao, Chun, Qian, Yun, Hu, Kejia, Liu, Xiaoping, and Chen, Baode. Contribution of urbanization to the increase of extreme heat events in an urban agglomeration in east China: Urbanization and the Increase of EHEs. United States: N. p., 2017. Web. doi:10.1002/2017GL074084.
Yang, Xuchao, Ruby Leung, L., Zhao, Naizhuo, Zhao, Chun, Qian, Yun, Hu, Kejia, Liu, Xiaoping, & Chen, Baode. Contribution of urbanization to the increase of extreme heat events in an urban agglomeration in east China: Urbanization and the Increase of EHEs. United States. doi:10.1002/2017GL074084.
Yang, Xuchao, Ruby Leung, L., Zhao, Naizhuo, Zhao, Chun, Qian, Yun, Hu, Kejia, Liu, Xiaoping, and Chen, Baode. Mon . "Contribution of urbanization to the increase of extreme heat events in an urban agglomeration in east China: Urbanization and the Increase of EHEs". United States. doi:10.1002/2017GL074084.
@article{osti_1373848,
title = {Contribution of urbanization to the increase of extreme heat events in an urban agglomeration in east China: Urbanization and the Increase of EHEs},
author = {Yang, Xuchao and Ruby Leung, L. and Zhao, Naizhuo and Zhao, Chun and Qian, Yun and Hu, Kejia and Liu, Xiaoping and Chen, Baode},
abstractNote = {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.},
doi = {10.1002/2017GL074084},
journal = {Geophysical Research Letters},
issn = {0094-8276},
number = 13,
volume = 44,
place = {United States},
year = {2017},
month = {7}
}

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