| 基于高光谱数据的东海近海悬浮泥沙浓度估测研究 |
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| 引用本文： | 陈雯扬,许惠平. 基于高光谱数据的东海近海悬浮泥沙浓度估测研究[J]. 水运工程, 2010, 0(2) |
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| 作者姓名： | 陈雯扬 许惠平 |
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| 作者单位： | 同济大学,上海,200092 |
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| 基金项目： | 东海海洋泥沙运移与微生物环境研究重点项目 |
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| 摘 要： | 本文旨在寻找悬浮泥沙浓度的遥感反演估测模型,并进行验证。现场持光谱仪利用水面以上法测量较少实测区东海近海二类水体的高光谱反射率,并同步获取水样分析泥沙浓度。通过对试验数据的分析发现,水体反射光谱有明显的"双峰"现象,即在可见光波段(560~720 nm)和近红外波段(810 nm)出现两个明显的反射峰。本文基于相关分析和最小二乘法建立了单波段及波段比值与泥沙浓度关系的回归方程。结果选择815 nm处单波段及815/555波段比值进行回归的拟合精度好,并且泥沙浓度对数和光谱反射率的反演效果最好。
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| 关 键 词： | 遥感 高光谱数据 反射率测量 悬浮泥沙浓度 |
Estimation on suspended sedimentation concentration of East Sea based on hyperspectral data |
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| CHEN Wen-yang,XU Hui-ping. Estimation on suspended sedimentation concentration of East Sea based on hyperspectral data[J]. Port & Waterway Engineering, 2010, 0(2) |
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| Authors: | CHEN Wen-yang XU Hui-ping |
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| Affiliation: | CHEN Wen-yang,XU Hui-ping(Tongji University,Shanghai 200092,China) |
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| Abstract: | This paper aims to search for and verify the estimation model of suspended sediment concentration(SSC).Numerous spectroradiometric measurement with field spectrometer was carried out to acquire the hyperspectral reflectance data in the East Sea.Meanwhile,the surface water samples were collected for analysis.It was found that two peaks exist in visual light waveband(560~720 nm) and near-infrared band(810 nm)respectively.Based on the correlation analysis and by the least-square method,the exponential relation... |
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| Keywords: | remote sensing hyperspectral data reflectance measurement suspended sediment concentration |
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