去除叶绿素a影响的泥沙反演模型  

Soil Concentration Reverse Model with Choraphyll-a Influence Removing

作　　者：吴传庆[1,2] 王桥[2] 王昌佐[2] 厉青[2] 刘晓曼[2] 万华伟[2] 

机构地区：[1]北京师范大学环境学院,北京100875 [2]环境保护部环境卫星中心筹备办公室,北京100029

出　　处：《中国环境监测》2009年第2期26-30,共5页Environmental Monitoring in China

基　　金：国家自然科学基金项目(40671134);中国科学院知识创新工程重要方向项目(KZCX3-SW-350)

摘　　要：通过遥感方法反演自然水体中泥沙浓度时,大量藻类的存在影响泥沙的反演精度,如何消除这种影响是提高水体中泥沙反演精度的关键。文章通过对一定叶绿素a浓度下不同浓度泥沙的光谱曲线研究,分析光谱曲线特征位置的漂移和数值变化,寻找去除叶绿素a影响的光谱范围和特征位置,通过相关性分析,建立多个模型,并从中选取最佳模型。When we use remote sensing technology to reverse the soil concentration in natural water, the existence of algae influence the reverse precision. How to remove this influence is the key of improving the soil reverse precision in water. The author studies the spectra of water with different concentrations soil and one concentration chlorophyll - a; analyses shifts and changes of spectrum characteristic positions ; finds out the spectrum range and characteristic positions in which the influence of algae is removed. After relative analysis, the author constructs and chooses the best soil concentration reverse model.

关 键 词：水体光谱 泥沙浓度 反演模型 

分 类 号：X826[环境科学与工程—环境工程]