globalchange  > 气候减缓与适应
DOI: 10.1002/2017JD028168
Scopus记录号: 2-s2.0-85044471932
论文题名:
Using WRF-Urban to Assess Summertime Air Conditioning Electric Loads and Their Impacts on Urban Weather in Beijing
作者: Xu X.; Chen F.; Shen S.; Miao S.; Barlage M.; Guo W.; Mahalov A.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期:5
起始页码: 2475
结束页码: 2490
语种: 英语
英文关键词: AC electric loads ; district-level verification ; double-peak ; impact on urban weather ; WRF-Urban
Scopus关键词: air conditioning ; air temperature ; boundary layer ; climate effect ; electric field ; error analysis ; heat island ; heat wave ; land surface ; parameterization ; sensible heat flux ; urban area ; Beijing [China] ; China
英文摘要: The air conditioning (AC) electric loads and their impacts on local weather over Beijing during a 5 day heat wave event in 2010 are investigated by using the Weather Research and Forecasting (WRF) model, in which the Noah land surface model with multiparameterization options (Noah-MP) is coupled to the multilayer Building Effect Parameterization and Building Energy Model (BEP+BEM). Compared to the legacy Noah scheme coupled to BEP+BEM, this modeling system shows a better performance, decreasing the root-mean-square error of 2 m air temperature to 1.9°C for urban stations. The simulated AC electric loads in suburban and rural districts are significantly improved by introducing the urban class-dependent building cooled fraction. Analysis reveals that the observed AC electric loads in each district are characterized by a common double peak at 3 p.m. and at 9 p.m. local standard time, and the incorporation of more realistic AC working schedules helps reproduce the evening peak. Waste heat from AC systems has a smaller effect (~1°C) on the afternoon 2 m air temperature than the evening one (1.5~2.4°C) if AC systems work for 24 h and vent sensible waste heat into air. Influences of AC systems can only reach up to ~400 m above the ground for the evening air temperature and humidity due to a shallower urban boundary layer than daytime. Spatially varying maps of AC working schedules and the ratio of sensible to latent waste heat release are critical for correctly simulating the cooling electric loads and capturing the thermal stratification of urban boundary layer. ©2018. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114263
Appears in Collections:气候减缓与适应

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作者单位: Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing, China; Institute of Urban Meteorology, China Meteorological Administration, Beijing, China; National Center for Atmospheric Research, Boulder, CO, United States; State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, China Meteorological Administration, Beijing, China; Beijing Meteorological Service Center, Beijing, China; School of Mathematical and Statistical Sciences and Julie Ann Wrigley Global Institute of Sustainability, Arizona State University, Tempe, AZ, United States

Recommended Citation:
Xu X.,Chen F.,Shen S.,et al. Using WRF-Urban to Assess Summertime Air Conditioning Electric Loads and Their Impacts on Urban Weather in Beijing[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(5)
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