| 鄱阳湖透明度遥感反演及其时空变化研究 |
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| 引用本文： | 江辉.鄱阳湖透明度遥感反演及其时空变化研究[J].中国农村水利水电,2012,0(1):30-33. |
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| 作者姓名： | 江辉 |
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| 作者单位： | 南昌工程学院,南昌330099／南昌大学教育部鄱阳湖湖泊生态与生物资源利用重点实验室,南昌330031 |
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| 基金项目： | 国务院国家重大水专项;国际科技合作项目 |
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| 摘 要： | 通过对鄱阳湖实测光谱的特征分析，结合透明度野外量测，利用MODIS影像分期统计回归方法反演得到透明度信息和分析其时空变化。研究结果表明：红光和近红外波段是反演水质参数透明度的敏感波段，鄱阳湖丰水期、平水期和枯水期透明度变化较大，呈逐渐减小的趋势，与实测数据吻合。利用该遥感模型可以实现大面积鄱阳湖透明度实时动态监测的目的。
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| 关 键 词： | 鄱阳湖 透明度（SD） 遥感 时空特征 |
| 收稿时间： | 2011-08-23 |
| 修稿时间： | 2011-08-23 |
Research on Transparency Derived from Remote Sensing and Its Spatial-temporal Changes in Poyang Lake |
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| JIANG Hui.Research on Transparency Derived from Remote Sensing and Its Spatial-temporal Changes in Poyang Lake[J].China Rural Water and Hydropower,2012,0(1):30-33. |
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| Authors: | JIANG Hui |
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| Institution: | JIANG Hui1,2(1.Nanchang Institute of Technology,Nanchang 330099,China;2.The Key Lab.of Poyang Lake Ecology and Bio-resource Utilization,Nanchang University,Ministry of Education,Nanchang 330031,China) |
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| Abstract: | Through the characteristic analysis of spectral measured in Poyang Lake,based on the transparency of the field measurements,transparency is retrieved with phased regression method by MODIS images and its spatial-temporal change are analyzed.The results show that: red and near infrared bands are sensitive to the transparency of water quality parameters inversion bands,transparency changes greater in high,average,low water periods,the trend is gradually reduced,consistent with the measured data..Using remote sensing models can achieve a purpose of real-time dynamic monitoring transparency in Poyang Lake. |
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| Keywords: | Poyang Lake Transparency (SD) Remote Sensing Temporal-spatial Characteristics |
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