| 基于GOCI的浑浊水体大气校正修复方法——以太湖为例 |
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| 引用本文： | 陈会明,郭瑞,邓实权,韩世刚,杨治国.基于GOCI的浑浊水体大气校正修复方法——以太湖为例[J].华中师范大学学报(自然科学版),2020,54(5):892-897. |
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| 作者姓名： | 陈会明 郭瑞 邓实权 韩世刚 杨治国 |
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| 作者单位： | 1.武汉大学遥感信息工程学院， 武汉 430079； 2.河南测绘职业学院遥感工程系， 郑州 451464；3.湖南省地质调查院， 长沙 410000； 4.北京麦飞科技有限公司， 武汉 430079；5.武汉珞珈德毅科技股份有限公司， 武汉 430079 |
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| 摘 要： | 浑浊水体的大气校正一直是水色遥感研究的热点与难点.该文以GOCI数据为基础，以太湖为研究区域，提出了最佳像素范围半径内的大气校正修复方法，修复了在浑浊水体无法获取有效的大气校正结果的问题，利用修复的大气校正结果，建立了归一化叶绿素a指数(NDCI)，并反演得到了未修复和修复后的NDCI.结果表明，在未修复和修复后的相交区域，NDCI具有较高的一致性，平均相对误差小于1.2%，说明该大气校正修复方法能有效修复大气校正失败区域.
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| 关 键 词： | GOCI 大气校正 浑浊水体 修复 |
| 收稿时间： | 2020-10-22 |
Atmospheric correction and repair method for turbid water body based on GOCI： take Taihu Lake as an example |
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| CHEN Huiming,GUO Rui,DENG Shiquan,HAN Shigang,YANG Zhiguo.Atmospheric correction and repair method for turbid water body based on GOCI： take Taihu Lake as an example[J].Journal of Central China Normal University(Natural Sciences),2020,54(5):892-897. |
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| Authors: | CHEN Huiming GUO Rui DENG Shiquan HAN Shigang YANG Zhiguo |
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| Institution: | 1.School of Remote Sensing Information Engineering， Wuhan University， Wuhan 430079，China；2.Department of Remote Sensing Engineering， Henan Vocational College of Surveying and Mapping， Zhengzhou 451464， China； 3.Hunan Provincial Geological Survey， Changsha 410000， China；4.Beijing Maifei Technology Co.， Ltd.， Wuhan 430079， China；5.Wuhan Lujia Deyi Technology Co.， Ltd.， Wuhan 430079， China |
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| Abstract: | Atmospheric correction of turbid water has been a hot and difficult point in the research of remote sensing of water color. Based on GOCI (Geostationary Ocean Color Imager) data and with the Taihu Lake as the research area， an atmospheric correction and repair method within the optimal pixel range radius is proposed. The problem of not being able to obtain effective atmospheric correction results in turbid water bodies. Using the corrected atmospheric correction results， a normalized chlorophyll a index (NDCI) was established， and the unrepaired and repaired NDCIwere obtained by inversion. The results show that The NDCI has high consistency after the repair and the intersecting area， and the average relative error is less than 1.2%， which indicates the feasibility of this atmospheric correction repair method. |
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| Keywords: | GOCI atmospheric correction turbid water repair |
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