| 利用CHRIS/PROBA数据定量反演草地LAI方法研究 |
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| 引用本文： | 李新辉,宋小宁,冷佩.利用CHRIS/PROBA数据定量反演草地LAI方法研究[J].国土资源遥感,2011(3):61-66. |
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| 作者姓名： | 李新辉 宋小宁 冷佩 |
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| 作者单位： | 中国科学院研究生院资源与环境学院; |
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| 基金项目： | 中国科学院知识创新工程重要方向项目“基于遥感的流域尺度土壤水分反演”(编号:XMXX280722),中国科学院研究生院院长基金共同资助 |
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| 摘 要： | 以内蒙古锡林河流域典型草地为研究样区,基于新一代微卫星CHRIS/PROBA高光谱遥感数据,利用双层冠层反射率模型(A two - layer Canopy Reflectance Model,ACRM)定量反演叶面积指数(LAI).首先对高光谱数据进行预处理和统计分析,并结合反演结果对角度信息的敏感性进行分析,确定适...
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| 关 键 词： | CHRIS/PROBA 稀疏草地 叶面积指数(LAI) 双层冠层反射率模型(ACRM) |
A Quantitative Method for Grassland LAI Inversion Based on CHRIS/PROBA Data |
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| LI Xin-hui,SONG Xiao-ning,LENG Pei.A Quantitative Method for Grassland LAI Inversion Based on CHRIS/PROBA Data[J].Remote Sensing for Land & Resources,2011(3):61-66. |
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| Authors: | LI Xin-hui SONG Xiao-ning LENG Pei |
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| Institution: | LI Xin-hui,SONG Xiao-ning,LENG Pei(College of Resources and Environment,Graduate School of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | Based on the CHRIS/PROBA hyperspectral remote sensing data,the authors retrieved the leaf area index(LAI) by A two-layer Canopy Reflectance Model(ACRM).The process consists of three main steps: Firstly,the high-spectral data was preprocessed and statistically analyzed.Secondly,sensitivity of the model to observing directions was analyzed.And finally,the best combinations of bands and parameters for the study area were chosen.The process was used to study the LAI of typical grass plots of Xilin River basin i... |
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| Keywords: | CHRIS/PROBA Sparse grassland Leaf Area Index(LAI) A two-layer Canopy Reflectance Model(ACRM) |
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