| 鄱阳湖总悬浮物浓度高光谱定量模型 |
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| 引用本文： | 江辉.鄱阳湖总悬浮物浓度高光谱定量模型[J].光谱实验室,2012,29(1):1-4. |
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| 作者姓名： | 江辉 |
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| 作者单位： | 南昌工程学院水利与生态工程学院 南昌市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 南昌市330031 |
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| 基金项目： | 国家自然科学基金资助项目，国务院国家重大水专项 |
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| 摘 要： | 以鄱阳湖为研究对象,利用地物波谱仪在湖区进行高光谱测量和同步的水体采样实验,通过研究鄱阳湖水体的光谱反射率特征和实测总悬浮物(TSS)浓度之间的关系,建立了TSS浓度的遥感定量模型.结果表明,由于悬浮物的反射作用出现双峰特征,红光与近红外部分波段是TSS的敏感区域,敏感性红光波段大于近红外波段;一阶微分处理的593nm处一阶导数数据和TSS浓度的一元二次方程为反演的最佳模型.研究成果可为今后卫星遥感大面积监测鄱阳湖TSS浓度奠定基础.
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| 关 键 词： | 鄱阳湖 总悬浮物 遥感 高光谱 |
Hyperspectral Quantitative Model of Total Suspended Sediment Concentration in Poyang Lake |
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| JIANG Hui.Hyperspectral Quantitative Model of Total Suspended Sediment Concentration in Poyang Lake[J].Chinese Journal of Spectroscopy Laboratory,2012,29(1):1-4. |
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| Authors: | JIANG Hui |
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| Institution: | Jiang Hui (Institute of Water Conserancy and Ewlogical Engineering,Nanchang Institute of Technology,Nanchang 330099,P.R.China) (The Key Lab of Poyang Lake Ecology and Bio-Resource Utilization Ministry of Education,Nanchang University, Nanchang 330031,P.R.China) |
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| Abstract: | The experiment was accomplished to attain hyperspectral data measured by fieldspec handheld instrument and synchronous water samples in Poyang Lake.The remote sensing quantitative models of total suspended sediment(TSS) concentration were established through analyzing the correlation between TSS concentration and spectral reflectance.The result showed that there were two peaks for reflection of TSS concentration,red and near infrared wave bands were sensitive bands of TSS,and the former is higher sensitivity than the latter.A quadratic equation between the 1st derivative value of 593nm and TSS concentration was the best inversion model.It provided some evidence for theoretical basis of investigation TSS concentration in a large scope based on remote sensing data in the future. |
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| Keywords: | Poyang Lake Total Suspended Sediment(TSS) Remote Sensing Hyperspectrum |
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