The network of Polish waterways, comprising navigable canals and canalised or free-flowing rivers, as well as a number of interconnected lakes, is nearly 3650km long. Waterways of international importance (classes IV and ...

This paper presents the results obtained from the topographic surveys of the surface of one of the positive channel forms (sandbars) of the Vistula river. The new data collection technology, a GPS RTK device, was used to ...