Abstract. The Polish part of the Western Outer Carpathian lineament network was analysed based on the Global Multi-resolution Terrain Elevation Data 2010 (GMTED2010) digital elevation
model. Lineaments were identified in the visual screening of the hillshade
model. To the best of our knowledge, no one has studied the geometrical
properties of the network in relation to the topological ones. The
NetworkGT QGIS toolbox was applied to identify the nodes and branches of the
network as well as to calculate the topology parameters. Our aim was to
find differences between the western and eastern parts of the Western Outer
Carpathians; therefore, the analyses were carried out in six sectors chosen
based on the geographical subdivision in the geological context: three in
the north, mainly the Silesian unit, and three in the south, mainly the
Magura unit. We found general agreement of the identified network with the
photo-lineament map; however, some of the photo-lineaments are not confirmed
by a digital elevation model (DEM). We found that the topological parameters
of the networks change from west to east but not from north to south. There
are areas of increased interconnectivity, especially the Nowy Sącz
Basin, where the lineament network may reflect a complicated system of
cross-cutting, deep-rooted fault zones in the basement.