| Impact of Anthropogenic Heat Release on Regional Climate in Three Vast Urban Agglomerations in China简 |
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| 作者姓名： | FENG Jinming WANG Jun and YAN Zhongwei |
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| 基金项目： | supported by the Strategic Priority Research Program-Climate Change: Carbon Budget and Relevant Issues of the Chinese Academy of Sciences (Grant No. XDA05090000);the National Key Program for Developing Basic Sciences of China (Grant No. 2009CB421401);the Special Fund for Meteorological Scientific Research in Public Interest (Grant No. GYHY201106028);the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant No. KZCX2-EW-202) |
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| 摘 要： | We simulated the impact of anthropogenic heat release （AHR） on the regional climate in three vast city agglomerations in China using the Weather Research and Forecasting model with nested high-resolution modeling.Based on energy consumption and high-quality land use data,we designed two scenarios to represent no-AHR and current-AHR conditions.By comparing the results of the two numerical experiments,changes of surface air temperature and precipitation due to AHR were quantified and analyzed.We concluded that AHR increases the temperature in these urbanized areas by about 0.5℃-1℃,and this increase is more pronounced in winter than in other seasons.The inclusion of AHR enhances the convergence of water vapor over urbanized areas.Together with the warming of the lower troposphere and the enhancement of ascending motions caused by AHR,the average convective available potential energy in urbanized areas is increased.Rainfall amounts in summer over urbanized areas are likely to increase and regional precipitation patterns to be altered to some extent.
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| 关 键 词： | 区域气候 城市群 热释放 中国 城市化地区 模拟预测模型 对流有效位能 区域降水 |
Impact of anthropogenic heat release on regional climate in three vast urban agglomerations in China |
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| FENG Jinming,WANG Jun,and YAN Zhongwei.Impact of anthropogenic heat release on regional climate in three vast urban agglomerations in China[J].Advances in Atmospheric Sciences,2014,31(2):363-373. |
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| Authors: | Jinming Feng Jun Wang Zhongwei Yan |
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| Institution: | 1. Key Laboratory of Regional Climate-Environment Research for Temperate East Asia, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China
2. University of Chinese Academy of Sciences, Beijing, 100049, China
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| Abstract: | We simulated the impact of anthropogenic heat release (AHR) on the regional climate in three vast city agglomerations in China using the Weather Research and Forecasting model with nested high-resolution modeling. Based on energy consumption and high-quality land use data, we designed two scenarios to represent no-AHR and current-AHR conditions. By comparing the results of the two numerical experiments, changes of surface air temperature and precipitation due to AHR were quantified and analyzed. We concluded that AHR increases the temperature in these urbanized areas by about 0.5°C—1°C, and this increase is more pronounced in winter than in other seasons. The inclusion of AHR enhances the convergence of water vapor over urbanized areas. Together with the warming of the lower troposphere and the enhancement of ascending motions caused by AHR, the average convective available potential energy in urbanized areas is increased. Rainfall amounts in summer over urbanized areas are likely to increase and regional precipitation patterns to be altered to some extent. |
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| Keywords: | anthropogenic heat release energy consumption urban agglomerations regional climate |
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