NGHIÊN CỨU ỨNG DỤNG ẢNH VIẾN THÁM XÁC ĐỊNH NỒNG ĐỘ BÙN CÁT LƠ LỬNG VÙNG CỬA HỚI SÔNG MÃ

Abstract

Estimating the concentration of suspended sediment has an important role in the studies morphology, water quality in estuaries and coastal areas. This study uses remote sensing data to determine the relationship between the reflectance spectrum from satellite imagery and suspended sediment concentrations at Ma estuary in Thanh Hoa province from field measurements and analysis of satellite imagery. The results showed that the relationship between the reflectance spectrum from satellite imagery (Landsat-8 OLI) and concentrations follow quadratic polynomial (R² = 0.74). The results of this study initially setup a orientation study related to use satellite images to determine the concentration of suspentded sediment at the Ma estuary in paticular and further in central region of Vietnam in general.