| 基于MODIS数据的广州市光化学污染预警等级研究 |
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| 引用本文： | 夏丽华,王德辉,王芳.基于MODIS数据的广州市光化学污染预警等级研究[J].国土资源遥感,2006,17(4):73-76. |
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| 作者姓名： | 夏丽华 王德辉 王芳 |
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| 作者单位： | 广州大学地理科学学院,广州,510006 |
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| 基金项目： | 国家高技术研究发展计划(863计划)
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广东省广州市属高校科技计划 |
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| 摘 要： | 分析MODIS数据反演的大气气溶胶光学厚度（AOD）与大气环境污染的关系，结果表明： 当空气没有污染时，AOD＜0.3； 轻度污染时，0.3＜AOD＜1.0； 污染严重时，AOD＞1.0。在分析AOD与地面大气污染关系的基础上，结合空气污染指数，将城市光化学污染预警等级分为无、微弱、较弱、较强和强5级，并结合广州市实例进行了验证分析，为进一步建设城市光化学污染预警系统提供基础。
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| 关 键 词： | MODIS 光化学污染 大气气溶胶光学厚度（AOD） 预警系统 预警等级 |
| 文章编号： | 1001-070X(2006)04-0073-04 |
| 收稿时间： | 2006-03-13 |
| 修稿时间： | 2006-04-10 |
RESEARCHES ON THE ADVANCED WARNING SYSTEM AND
ADVANCED WARNING GRADE OF THE PHOTOCHEMIC SMOG
POLLUTION IN GUANGZHOU CITY BASED ON MODIS DATA |
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| XIA Li-hua,WANG De-hui,WANG Fang.RESEARCHES ON THE ADVANCED WARNING SYSTEM AND
ADVANCED WARNING GRADE OF THE PHOTOCHEMIC SMOG
POLLUTION IN GUANGZHOU CITY BASED ON MODIS DATA[J].Remote Sensing for Land & Resources,2006,17(4):73-76. |
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| Authors: | XIA Li-hua WANG De-hui WANG Fang |
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| Institution: | School of Geographical Sciences, Guangzhou Universuty, Guangzhou 510006, China |
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| Abstract: | There exist increasingly serious and dangerous photochemical smog events in some cities caused by increasing motor vehicles. The prediction and early warning system, however, has not started to work. Therefore, we had better monitor the photochemical smog using remote sensing data and, at the same time, build the early warning system. Studies reveal a distinct positive correlation between aerosol optical depth (AOD) and air pollution monitored by MODIS data. When AOD<0.3, air is clean; when 0.3<AOD<1.0, there exists weak air pollution; and when AOD>1.0, air pollution becomes serious. Based on analyzing the correlation between AOD and air pollution and using data of air pollution monitors and Air pollution Index (API), this paper has divided the early warning system of Urban Photochemical Smog Pollution into five grades: nil, faint, weak, relatively strong and strong, Verification with the example of Guangzhuo has laid the foundation for the application of the Advanced Warning Mechanism System to the Urban Photochemical Smog Pollution. |
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| Keywords: | MODIS Photochemical pollution Aerosol optical depth（AOD） Advanced warning system Advanced warning grade |
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