Satellite Derived Bathymetry Survey Method - Example of Hramina Bay

Josip Peroš,Nenad Leder,Tea Duplančić Leder

doi:10.7225/toms.v08.n01.010

Josip Peroš, Nenad Leder + Show 1 more

Open Access

https://doi.org/10.7225/toms.v08.n01.010

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Abstract

Satellite Derived Bathymetry (SDB) method uses satellite or other remote multispectral imagery for depth determination in very shallow coastal areas with clear waters. Commonly, SDB survey method can be used when planning hydrographic surveying of marine areas not surveyed or areas with old bathymetric data. This method has become widely used in the past few years. SDB is a survey method founded on analytical modelling of light penetration through the water column in visible and infrared bands. In this article, SDB method was applied by using free-of-charge Landsat 8 and Sentinel 2 satellite images to get the bathymetric data in the area of Hramina Bay in the Central Adriatic. SDB processing procedures and algorithms were described. Processed satellite data was uploaded on geodetic software and ENC S-57 format. The bathymetric map of Hramina Bay obtained by the SDB method was compared with the approach usage band Electronic Nautical Chart (ENC) HR400512 with satisfying positional and vertical accuracy.

Highlights

Satellite Derived Bathymetry (SDB) is a relatively new survey method which uses satellite or other remote multispectral imagery for depth determination (Marks, 2018)
After the processing of satellite data, the product obtained was uploaded on ESRI ArcMap software Version 10.6 with the support of 3D Analyst Tool and Electronic Nautical Chart (ENC) S-57 format capabilities for estimating the bathymetry using the log transformation algorithm
By applying SDB method in Hramina Bay area in the eastern part of the Central Adriatic, it could be concluded that the method is suitable for a bathymetric survey of shallow areas with clear water, which the researched area fills during most of the year

Summary

Introduction

Satellite Derived Bathymetry (SDB) is a relatively new survey method which uses satellite or other remote multispectral imagery for depth determination (Marks, 2018). The results of SDB method are applicable in many hydrographic branches and generally in marine sciences (bathymetry, cartography, coastal management, water quality monitoring, etc.). This method was developed in the late 1970s, but the frequency of its use has increased considerably in the last few years (UKHO, 2015). It should be mentioned that accuracy of SDB does not meet current International Hydrographic Organization (IHO) S-44 standards (IHO, 2008). Since the data of some satellite missions is free or available for a relatively small price, it can be said that this is almost the cheapest source of spatial data in general

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