Relative Spatial Accuracy Evaluation of the Shuttle Radar Topography Mapping (SRTM15 V2.0) Dataset on the Cameroon Continental Shelf

Abstract

This study presents a comparison between two bathymetric datasets covering the continental shelf of Cameroon. One of these datasets, Campus Cameroun, is based on a specific single-beam echosounder survey used in an authoritative study. The other is an excerpt of the SRTM15 + V2.0, - free and open Global Bathymetry and Elevation Data model which provides background information for Google Earth, Google Maps, etc. - whose ocean bathymetry is based on a combination of satellite altimetry and echosounder data compiled from various sources. In the absence of multibeam bathymetric data for this area, this article assesses the local performance of the SRTM15 + V2.0 by evaluating its relative positional accuracy with the Campus Cameroun bathymetric dataset, its completeness and, therefore, determines its suitability for geomorphological studies.