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- van Leijen, Freek J., et al. Show all 6 Authors
- Engineering geology 2019
- coal; deformation; geodesy; geophysics; global positioning systems; interferometry; monitoring; photogrammetry; satellites; subsidence; synthetic aperture radar; Poland
- ... Unexpectedly occurring sinkholes caused by shallow submerged voids are one of the key problems of intensively built-up post-mining areas. Five percent of Poland’s territory is still under the influence of post-mining deformation. Impending sinkholes, which tend to develop randomly over very large areas, cannot be detected by using traditional geophysical methods. Moreover, geodetic measurement met ...