Abstrakt
The relief of the Karviná region and its changes are closely associated with hard coal mining. Present-day mining is in progress in seven mining areas spreading westwards and southwards from the urban area of Karviná.
Undermining results in the ground subsidence on the surface. Subsidence depressions are gradually created in the direction of mining.
Mining waste material is backfilled to dumps predominantly in the most subsiding localities which are sometimes inundated by groundwater. Man-made landscape transformation then finishes by land reclamation.
Results of the satellite radar interferometry (InSAR) have partly revealed the spatio-temporal evolution of the subsidence depressions. These results were necessary to compare with results of other measurement techniques (GPS, levelling).
Geomorphology analysis focuses on mapping of the anthropogenic landforms, observation of the subsiding areas including water-level monitoring and recording the deformations on the rigid parts of surface and their spatial distribution (e.g. on the roads). Field observations are supplemented by the analysis of elevation data and aerial photography.
Classification of anthropogenic landforms and delimitation of total extent of antropogenic relief will be compared with the results of previous authors from 1970s and 1980s.