泥沙研究Issue(5)：1-7,7.
长江口最大浑浊带表层水体悬沙粒径对离水光谱反射率的影响
Impact of suspended sediment particle size on water-leaving radiance reflectance in turbidity maximum zone of Changjiang Estuary
摘要
Abstract
In situ the water-leaving radiance reflectance and the suspended sediment particle sizes were measured in the Changjiang Estuary, China. The suspended sediment particle sizes included particle sizes measured in lab and the floe sizes measured by LISST - 100 in situ. The paper discusses the impact of different grain size parameters on the water-leaving radiance reflectance. The results show that no matter the mean diameter or median diameter of the particle size or floe mean diameter as a parameter, all the accuracies of the empirical algorithms decline, which may be due to the less contribution of particle size distribution to the water-leaving radiance reflectance than the suspended sediment concentration. It is suggested that to use the projected surface area (PSA) rather than the simple grain size would make better results.关键词
悬浮泥沙/光谱反射率/粒径/长江口Key words
suspended sediment/ water-leaving radiance reflectance/ particle size/ Changjiang Estuary分类
建筑与水利引用本文复制引用
蒋雪中,王维佳,张俊儒,何青..长江口最大浑浊带表层水体悬沙粒径对离水光谱反射率的影响[J].泥沙研究,2012,(5):1-7,7.基金项目
国家自然科学重点基金(41130856) （41130856）
上海市科学技术委员会重大项目(11dz1204900) （11dz1204900）
