| 贵州省2009年冬季大气气溶胶光学厚度的特征分析 |
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| 引用本文： | 龙俐,田鹏举,郑小波.贵州省2009年冬季大气气溶胶光学厚度的特征分析[J].贵州气象,2010,34(4):3-6. |
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| 作者姓名： | 龙俐 田鹏举 郑小波 |
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| 作者单位： | 1. 贵州省气候中心,贵州,贵阳,550002
2. 贵州省山地环境气候研究所,贵州,贵阳,550002 |
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| 摘 要： | 利用FY-3A陆上气溶胶日产品,结合ENVI遥感影像软件和ArcGIS地理信息软件的相关模块,处理和分析了贵州省2009年冬季大气气溶胶光学厚度,并由此计算出Angstrom浑浊度系数和波长指数。分析表明:贵州省2009年冬季整层大气气溶胶光学厚度在0.55μm波段内的旬变化幅度为0.28~0.53μm,并呈现出波动性的发展趋势,特别是2010年1月下旬—2月下旬有显著增加,较大值在整个冬季都相对集中于贵州省的中部、西南部以及北部地区;在污染物浓度变化中,细粒子浓度变化因素占主导地位;与冬季的前期相比,后期气溶胶光学厚度较大,细粒子比重有所增加,浑浊度稍微偏高,造成空气轻微污染。
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| 关 键 词： | 气溶胶光学厚度（AOD） 浑浊度系数 波长指数 贵州省 |
Characteristic analysis of aerosol optical thickness in the winter of 2009 in Guizhou |
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| LONG li,TIAN Peng-ju,ZHENG Xiao-bo.Characteristic analysis of aerosol optical thickness in the winter of 2009 in Guizhou[J].Journal of Guizhou Meteorology,2010,34(4):3-6. |
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| Authors: | LONG li TIAN Peng-ju ZHENG Xiao-bo |
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| Institution: | 1.Climate Center of GuiZhou,Guiyang 550002;2.GuiZhou Institute of Mountainous Environment and Climate,Guiyang 550002) |
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| Abstract: | Using FY3A daily land aerosol product,combine to the ENVI Remote Sensing Image processing Software and the relevant modules of AreGIS geo-spatial software,processed and analysed the GuiZhou Province atmospheric Aerosol Optical Depth in the Winter of 2009,calculated the Angstrom turbidity coefficient and wavelength exponent by this mothed.The analysis shows that：on the band of 0.55μm,the Ten-days variation scope of the whole atmosphere aerosol optical depth in the winter of GuiZhou province is between 0.28 and 0.53,also appears the fluctuating development tendency,specially increases significantly in the time between the last ten-days of January and the last ten-days of February of 2010.The larger value in the whole winter relatively concentrate on the areas of the middle,southwest and north of GuiZhou province.In the variations of pollutants concentration,the variation factor of small particle concentration is the leading one.Compare to the former winter,the aerosol optical depth in the later winter is larger,the ratio of small particle has little increase,and the turbidity coefficient has slightly higher,all of these reasons cause mildly pollution to the atmosphere. |
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| Keywords: | Aerosol Optical Depth Wavelength Exponent Turbidity Coefficient GuiZhou Province |
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