GIS modelling of bathymetric data in the construction of port terminals – An example of Vlaška channel in the Port of Ploče, Croatia

Abstract

In the era of diversification of cargo freight facilities, applications of advanced geo-modelling and geo-design tools is one of the imperatives. Particularly, in the case of the new construction or redevelopments of large port terminals, its infrastructure and facilities. The main objective of this paper is to demonstrate the importance of bathymetric survey as one of the contemporary tools utilised in the pre-construction phase of port terminals. Contemporary bathymetry provides complex digital modelling and determines the depth, morphology and sedimentology of the river, lake, dam or sea beds. When planning, designing and constructing port terminals, bathymetric survey is listed as one of prerequisites, prior any other physical intervention in general, or material excavation in particular. In order to generate precise digital model of the sea-bed morphology in its zero and final stage, and calculated the quantity of the excavated material (in m³), our research team was using together geo-statistic and deterministic interpolation models. Particular emphasis was placed on the Newton-Cotes model affecting the output result (excavated material volume).