| 应用WRF-chem模式模拟京津冀地区气溶胶污染对夏季气象条件的影响 |
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| 引用本文： | 马欣,陈东升,高庆先,师华定,李悦,周颖,温维.应用WRF-chem模式模拟京津冀地区气溶胶污染对夏季气象条件的影响[J].资源科学,2012,34(8):1408-1415. |
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| 作者姓名： | 马欣 陈东升 高庆先 师华定 李悦 周颖 温维 |
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| 作者单位： | 1. 北京工业大学环境与能源工程学院,北京,100124
2. 中国环境科学研究院,北京,100012 |
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| 基金项目： | 国家环保公益性行业科研专项(编号:201109065)。 |
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| 摘 要： | 本文利用WRF-chem空气质量模式，模拟研究2006年夏季代表月份7月的气溶胶污染对京津冀地区的温度、风速、PBL高度以及降水量等的影响。模拟结果表明，在气溶胶的直接和间接气候效应的作用下京津冀地区2006年夏季区域平均温度下降了0.19℃、风速升高了0.089m／s、PBL高度下降了34.42m、降水量增加了0.069mm。研究发现，对于污染较重的地区地面10m风速的下降程度显著，而地面2m温度和PBL高度则明显的下降，对于污染较轻的地区地面2m温度和PBL高度有明显的下降，地面10m风速则有明显的上升。此外，由于地形的作用，北京市平原地区的温度和PBL高度的下降量低于山地地区，而风速则相反。
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| 关 键 词： | 气溶胶 气候效应 气象条件 WRF-chem |
Simulation of the Influence of Aerosol Pollution on Summer Weather in Beijing-Tianjin-Hebei Region Using WRF-chem |
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| MA Xin,CHEN Dongsheng,GAO Qingxian,SHI Huading,LI Yue,ZHOU Ying and WEN Wei.Simulation of the Influence of Aerosol Pollution on Summer Weather in Beijing-Tianjin-Hebei Region Using WRF-chem[J].Resources Science,2012,34(8):1408-1415. |
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| Authors: | MA Xin CHEN Dongsheng GAO Qingxian SHI Huading LI Yue ZHOU Ying and WEN Wei |
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| Institution: | College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China;College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China;Chinese Research Academy of Environmental Sciences, Beijing 100012, China;Chinese Research Academy of Environmental Sciences, Beijing 100012, China;College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China;College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China;College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China |
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| Abstract: | Among chemistry-aerosol-cloud-radiation-climate, there are complex feedback mechanisms which exist all over the earth systems. The feedback of aerosols may include a direct feedback and an indirect feedback which influences temperature, planetary boundary layer (PBL) and wind speed, as well as precipitation on surface or near surface. With rapid economic development, China’s air pollution becomes more and more serious in the past few decades, and the regional climate has been greatly impacted. Our study aims at exploring the complex feedback between air pollution and climate change in one of the most prosperous regions of China. In this paper, the online Weather Research and Forecasting and Chemistry(WRF-chem)model was used to explore impacts of aerosols pollution on weather conditions in Beijing-Tianjin-Hebei region. The study region is situated at 34°N,109°E with a spatial resolution of 0.5°×0.5°and a dimension of 35×39 grid cells. The major physics options include the Goddard shortwave radiation scheme, the rapid radiative transfer model long-wave radiation scheme, and the Fast-j photolysis rate scheme; the chemical options include the RADM2 and MADE/SORGAM aerosols options. The modeling system was evaluated through comparing the simulation results of PM 10 , temperature of a place 2m above the ground, wind speed at a place 10m above the ground and precipatation with corresponding observations in July 2006. The month-long simulation has shown the aerosol’s direct and indirect clamatic effects on T2, PBL height and wind speed in terms of absolute differences. In Beijing, Tianjin and Shijiazhuang, the changes of T2, PBL height and wind speed are as follows: T2 values reduce by 0.17 ℃ , 0.18 ℃ and 0.23 ℃ respectively; PBL height reduces by up to 32.88m, 27.78m and 41.85m respectively; wind speed increases by 0.067m/s, 0.085m/s and 0.167m/s, respectively. Besides, as a consequence of aerosol’s indirect effects, the total precipitation in Beijing, Tianjin and Shijia-zhuang increases by 0.069mm. |
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| Keywords: | Aerosol Climate effect Weather condition WRF-chem |
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