Remote-sensing reflectance characteristics of highly turbid estuarine waters - a comparative experiment of the Yangtze River and the Yellow River
Abstract:An outdoor tank experiment is carried out to analyse the interrelationships between remote-sensing reflectance and sediment characteristics in the highly turbid waters of the Yangtze River and the Yellow River estuaries. The results show that the sensitivity of remote-sensing reflectance to water turbidity is inversely related to suspended sediment concentration (SSC). SSC estimation in the highly turbid waters (SSC > 0.15 g l-1) is best achieved by using ocean colour ratios, especially the ratio at 810 nm: 700 nm. The effect of particle size of suspended sediment matter (SSM) on the observed remote-sensing reflectance is significant and depends on wavelengths and a SSC range. The mineral composition of SSM has a weak effect on observed reflectance in comparison to that of particle size.
Document Type: Research Article
Affiliations: 1: State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, China,International Institute for Geo-information Science and Earth Observation, Enschede, The Netherlands 2: International Institute for Geo-information Science and Earth Observation, Enschede, The Netherlands 3: State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, China 4: Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, China
Publication date: March 1, 2010