ZASTOSOWANIE MAPY WEKTOROWEJ POLSKI W SKALI 1:50 000 (VMAPL2) DO BUDOWY MODELI PRZEPŁYWU WÓD PODZIEMNYCH

Abstract

APPLICATION OF THE VECTOR MAP OF POLAND 1:50 000 (VMAPL2) TO THE DEVELOPMENT OF NUMERICAL GROUNDWATER FLOW MODELAbstract. During the development of numerical groundwater flow models the accurate surface terrain reproduction is one of the most important tasks. No large-scale digital terrain models (DTM) of Poland have been developed yet. The numerical groundwater flow models were hitherto based on a digital terrain model schematically transformed from topographic maps. The other way to obtainDTMwas digitizing topographic maps. This paper shows the procedure of thematic layer conversion from a vector map (VMAPL2) to a database of Surfer software. Moreover, the influence of different discretization network steps on the accuracy of the surface terrain reproduction is presented.