Dry Means Green. Using ALS LiDAR DEM to Determine the Geomorphological Reaction of a Large, Untrained, European River to Summer Drought (the Vistula River, Warsaw, Poland)

Using ALS LiDAR DEM we study the geomorphology and geoecology of fluvial islands in the channel of braided river which was affected by summer drought. We analyse hydrological data: river stages from the adjacent gauging station with telemetric system. On the basis of DoD method we analyse the dynami...

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Bibliographic Details
Published in:IEEE journal of selected topics in applied earth observations and remote sensing 2025-01, Vol.18, p.1-24
Main Authors: Wierzbicki, Grzegorz, Sudra, Pawel, Lewicki, Tomasz, Pawlowski, Kacper, Jozwiak, Jacek, Chormanski, Jaroslaw
Format: Article
Language:English
Subjects:
Droughts
ecology
Erosion
Europe
Forestry
Geomorphic
hydromorphology
Laser radar
plant
Remote sensing
Rivers
riverscape evolution
Sensors
Transforms
Vegetation mapping
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Summary:Using ALS LiDAR DEM we study the geomorphology and geoecology of fluvial islands in the channel of braided river which was affected by summer drought. We analyse hydrological data: river stages from the adjacent gauging station with telemetric system. On the basis of DoD method we analyse the dynamics of geomorphological processes in two periods: 2019 to 2020 and 2020 to 2022. Bank erosion is analysed on the basis of difference between DTM. Bank erosion reduces the area of riverine islands. The difference of CHM reveals a process of succession of riparian vegetation (mostly the white willow - Salix alba L.) on sandbars. The riparian succession makes these landforms anchored by newly developed shrubs and trees, what induces accretion of sandbars. The sandbars therefore transform into riverine islands.
ISSN:1939-1404
2151-1535
DOI:10.1109/JSTARS.2024.3515466