EN
The monitoring of changes in the shape of sea bottom in order to control the depth is one of the basic methods of ensuring safety of navigational units. The geostatistic method is counted among the best numerical methods of surface spatial modelling. The construction of a spatial model requires the interpretation of measurement data in order to determine the depth for any coordinates, e.g. in nodes of regular squares network. The article presents research results and the basic aspects of spatial modelling of sea bottom by the geostatistic method.