Batimetria Derivada por Satélite Baseada em Abordagem de Segmentação Geográfica

Abstract

Because the safety of the navigation depends on accurate knowledge of the bottom depths, any improvements in the ability to derive bathymetry are of major interest. Ultimately, due to some advantages compared with the most common techniques, Satellite-Derived Bathymetry (SDB) has been considered an alternative for mapping shallow waters. However, the accuracy is considerably low when compared to conventional surveying and mapping technologies. In this context, this work presents a geographic approach to improve bottom depth estimation. Utilizing Sentinel-2A image, Airborne Lidar Bathymetry (ALB) data, in Dry-Tortugas, in the US Virgin Islands, the result demonstrated the ability in providing improved bathymetric estimates compared to conventional techniques, which can enhance the use of satellite derived bathymetry for nautical chart purposes.