松花湖水体叶绿素a含量与反射光谱特征关系初探  

Research on Correlations between Chlorophyll Concentration and Reflectance Spectral of Songhua Lake

作　　者：杜嘉[1,2] 张柏[1] 宋开山[1] 王宗明[1] 李方[1] 徐静萍[1,2] 

机构地区：[1]中国科学院东北地理与农业生态研究所,吉林长春130012 [2]中国科学院研究生院,北京100049

出　　处：《遥感技术与应用》2010年第1期50-56,共7页Remote Sensing Technology and Application

基　　金：中国科学院知识创新工程重要方向项目(KZCX3-SW-356);中国科学院东北地理与农业生态研究所知识创新工程领域前沿项目(C08Y46)

摘　　要：根据2008年7月在松花湖实测的水体反射光谱及实验室分析得到的叶绿素浓度数据,对松花湖水体反射光谱特征与叶绿素浓度之间的关系进行探讨与分析。研究结果表明:水体叶绿素浓度与各波长点处反射率相关性均较好,并选择700 nm处反射率建立单波段模型。而700 nm和677 nm波长处反射率比值、685 nm处光谱一阶微分、700 nm波长处波峰几何特征具有较好的相关性,给出了松花湖水体叶绿素浓度估算模型,为松花湖水体叶绿素浓度反演监测提供了一定的理论基础与参考。Based on the water reflectance spectra and chlorophyll concentration measured in July,2008,this study was conducted in order to discuss and analyze the correlation between reflectance spectra and chlorophyll concentration of Songhua lake.The results showed that the correlation between the reflectance spectra of each band and the chlorophyll concentration was good and a single-band model was established with the reflectance of 700 nm.The ratio of reflectance and first derivative reflectance were found to be significantly correlated with the chlorophyll concentration.The geometric characteristics of reflectance spectra at the ridge of 700 nm were also well correlated with the chlorophyll concentration.The estimation model of chlorophyll concentration of Songhua lake was established.

关 键 词：松花湖 叶绿素 反射光谱 高光谱遥感 回归分析 

分 类 号：P237.9[天文地球—摄影测量与遥感]