| Model for water pollution remote sensing based on double scattering and its application in the Zhujiang River outfall |
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| 作者姓名： | DENG Ruru LIU Qinhuo KE Ruipeing CHENG Lei LIU Xiaoping |
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| 作者单位： | [1]CentreforRemoteSensing,GeographicCollege,ZhongshanUniversity,Guangzhou510275,China [2]InstituteofRemoteSensingApplications,ChineseAcademyofSciences,Beijing100101,China |
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| 基金项目： | supported by the National Key Foundation Research Program under of China contract，广东省科研项目 |
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| 摘 要： | It is a valid route for quantitatively remote sensing on water pollution to build a model according to the physical mechanisms of scattering and absorbing of suspended substance, pollutant, and molecules of water. Remote sensing model for water pollution based on single scattering is simple and easy to be used, but the precision is affected by turbidity of water. The characteristics of the energy composition of multiple scattering, are analyzed and it is proposed that, based on the model of single scattering, if the flux of the second scattering is considered additionally, the precision of the model will be remarkably improved and the calculation is still very simple. The factor of the second scattering is deduced to build a double scattering model, and the practical arithmetic for the calculation of the model is put forward. The result of applying this model in the water area around the Zhujiang(Pearl) River outfall shows that the precision is obviously improved. The result also shows that the seriously polluted water area is distributed in the northeast of Lingding Sea, the Victoria Bay ofHong Kong, and the Shengzhen Bay.
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| 关 键 词： | 水污染 模型 遥感 双重精度散射 珠江口 |
| 收稿时间： | 2003/11/1 0:00:00 |
| 修稿时间： | 2003/12/12 0:00:00 |
Model for water pollution remote sensing based on double scattering and its application in the Zhujiang River outfall |
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| DENG Ruru,LIU Qinhuo,KE Ruipeing,CHENG Lei,LIU Xiaoping.Model for water pollution remote sensing based on double scattering and its application in the Zhujiang River outfall[J].Acta Oceanologica Sinica,2004,23(1):119-128. |
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| Authors: | DENG Ruru LIU Qinhuo KE Ruipeing CHENG Lei and LIU Xiaoping |
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| Institution: | 1.Centre for Remote Sensing, Geographic College, Zhongshan University, Guangzhou 510275, China2.Institute of Remote Sensing Applications, Chinese Academy of Sciences, Bei jing 100101, China |
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| Abstract: | It is a valid route for quantitatively remote sensing on water pollution to build a model according to the physical mechanisms of scattering and absorbing of suspended substance, pollutant, and molecules of water. Remote sensing model for water pollution based on single scattering is simple and easy to be used, but the precision is affected by turbidity of water. The characteristics of the energy composition of multiple scattering, are analyzed and it is proposed that, based on the model of single scattering, if the flux of the second scattering is considered additionally, the precision of the model will be remarkably improved and the calculation is still very simple. The factor of the second scattering is deduced to build a double scattering model, and the practical arithmetic for the calculation of the model is put forward. The result of applying this model in the water area around the Zhujiang(Pearl) River outfall shows that the precision is obviously improved. The result also shows that the seriously polluted water area is distributed in the northeast of Lingding Sea, the Victoria Bay of Hong Kong, and the Shengzhen Bay. |
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| Keywords: | remote sensing water pollution double scattering Zhujiang River outfall |
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