Statistical indices obtained in the present work indicate that the ratio-transform algorithm can retrieve depths
up to 20 m. The procedure used for deriving the satellite bathymetry can be used by the marine surveyors and
hydrographic officers. From a practical point of view, this procedure is convenient as a tool for examining near
shore coastal area before a high resolution hydrographic survey is carried out by using expensive instrument such
as Multi-beam echo sounder etc. By using the results of this tool, marine surveyors can assess the current amount
of change in depth and if a weaker R2 value is observed, it necessitates the update of high resolution hydrographic