Impact of Multiviewing Reflectance Data on the Estimation of Suspended Sediment Concentration

摘要

An experiment performed is reported which the tests suitability of using reflectance data measured at different viewing geometries to improve the estimation of Suspended Sediment Concentration (SSC). Laboratory simulation of 35 suspended sediment concentrations and 14 different sensing geometries was carried out to derive the SSC reflectance relationship. The results from the stepwise regression supported the idea that multiviewing algorithms provides better estimates of suspended sediment concentration from water reflectance. The standard error of estimate decrease from 89.00 mg/l with the multispectral model to 24.39 mg/l with the multiviewing model. The explanatory power of viewing variables, however, varied with wavebands.