摘要
通过黄河口含沙水体野外遥感光谱反射率的观测实验,探讨了黄河口水体表观光谱特性,分析了悬浮体中有机颗粒含量和悬沙粒度对光谱特性的影响。针对Landsat TM/ETM+影像波段特性,对黄河口含沙水体在其可见光至近红外4个波段的光谱特性进行了模拟分析,并结合表观光谱观测数据建立了经验回归函数,以估测不同时相黄河口水体表层悬沙的浓度。
The responses of spectral signature to suspended sediment concentration （SSC） of turbid waters in the Huanghe estuary are addressed based upon in situ above-water radiance measurement and water sampling, for suspended sediment concentration ranging from 5.4 to 1713.1 mg/L. The influences of suspended organic particle matter and particle distribution of suspended sediment on spectral signature are analyzed. Some empirical relationships between remote-sensing reflectance in Landsat TM bands and suspended sediment concentration are established. The best correlation is obtained for the reflectance ratio of Landsat TM3 and TM2, which is further applied to the estimation of SSC in the estuary.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2007年第7期601-604,共4页
Geomatics and Information Science of Wuhan University
基金
国家自然科学基金资助项目(50339050
40676037)
关键词
黄河口
悬沙浓度
光谱反射率
遥感
Huanghe estuary
suspended sediment concentration
spectral reflectance
remote sensing
