PROGRESS IN GEOGRAPHY ›› 2018, Vol. 37 ›› Issue (4): 515-524.doi: 10.18306/dlkxjz.2018.04.007

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Effect of anthropogenic heat release on temperature in different types of built-up land in Guangzhou, China

Zheng CAO1,2(), Zhifeng WU3,*(), Wenjun MA4   

  1. 1. Guangzhou Institute of Geochemistry, CAS, Guangzhou 510640, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
    3. School of Geographical Sciences, Guangzhou University, Guangzhou 510006, China
    4. Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
  • Received:2017-07-04 Revised:2017-10-13 Online:2018-04-20 Published:2018-04-20
  • Contact: Zhifeng WU E-mail:jnczdl@163.com;gzuwzf@163.com
  • Supported by:
    National Natural Science Foundation of China, No.41671430, No.41701204;Natural Science Foundation of Guangdong Province, China, No.2016A030310266

Abstract:

Along with the rapid urbanization process, large amounts of anthropogenic heat are released into the atmosphere, which are becoming a key issue for regional weather condition. To understand what role anthropogenic heat release plays in regional temperature warming, Weather Research & Forecasting (WRF) model was applied to simulate temperature during 2-6 July 2010 with different configuration of anthropogenic heat release. The results indicate that the simulated temperature is consistent with the meteorological station observation data, with the correlation coefficient of 0.89 and the root-mean-square error of 2.96. High density residential area had the highest daily average temperature followed by industrial or commercial zone and low density residential area. On the other hand, low density residential area had the highest daily diurnal temperature range followed by high density residential area and industrial or commercial zone. Anthropogenic heat release caused a notable warming in the whole downtown area of Guangzhou City, which was more significant in high density residential area and commercial zone than low density residential area. The spatial association between temperature rise caused by anthropogenic heat release and building density is 0.17 (high density residential area), 0.14 (low density residential area), and 0.16 (industrial or commercial zone), respectively. Conversely, anthropogenic heat release decreased diurnal temperature range (the difference between daily maximum temperature and daily minimum temperature), which was more significant in high density residential area and commercial zone than low density residential area. The spatial association between daily temperature range decrease caused by anthropogenic heat release and building density is 0.14 (high density residential area), 0.15 (low density residential area), and 0.19 (industrial or commercial zone). Furthermore, when doubling the anthropogenic heat release, the spatial association between building density and simulated temperature rise and daily temperature range decrease was enhanced.

Key words: anthropogenic heat release, different types of built-up land, heat waves, numerical simulation, WRF model, geographical detector