Landslides modifying drainage divides in mountainous areas and their classification: a case study from the Polish Outer Carpathians

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DOI:

https://doi.org/10.7306/gq.1774

Keywords:

Lidar-ALS, DEM, landslides detection, drainage divide migration

Abstract

Landslides change terrain morphology, often causing destruction of road infrastructure and other kinds of construction. Ever-increasing attention is drawn to the detection, identification, and classification of landslides. However, the influence of landslides on mountain-range migration has been more or less overlooked. The application of a digital elevation model (DEM) and successive DEM modelling derivatives have allowed determination of the influence of landslides on drainage divide modification. The Polish Outer Carpathians were here analysed for landslides, to distinguish landslide forms that modified drainage divides in mountainous areas and then to classify them. This analysis was performed based on data from airborne laser scanning using geographic information system tools. Accordingly, 510 landslides have been recognized as modifying drainage divides and were subsequently classified into three proposed landslide types (I–III).

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Published

2025-05-19

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Section

Articles