COMPARISON OF SUSPENDED SOLIDS AND TURBIDITY ESTIMATES FROM MODIS AND MERIS IMAGES IN THE THREE GORGES DAM AREA

摘要

The aim of this work is to evaluate turbidity and total suspended matter (TSM) along the Yangtze river and the Three Gorges Reservoir, China, applying different retrieval algorithms to satellite imagery (MOD09GQ and MERIS FRS L2). Turbidity and TSM are then correlated to ground daily discharges, showing good correlations. Daily estimates of TSM are then obtained even for the days for which satellite scenes are not available, applying the obtained relations between ground discharge and satellite estimates of TSM. Daily satellite TSM are compared with literature values of solid discharge measurements.