Abstract
Digital terrain models (DTM) with high resolution are ideally suited for a systematic mapping of geomorphological structures, such as fluvial terraces, with high accuracy. We developed a semi-automatic GIS method to correlate individual terrace treads stratigraphically using a 1 m DTM. It is applied to a gorge of River Wurm (Southern Bavaria, Germany). The approach yields suitable and plausible results and the presented map provides a clear and easy overview of correlated terrace levels. The investigation enhances the understanding of the spatial and temporal evolution of the va ll ey and demonstrates the great benefit of high-resolution DTMs and the digital processing of geodata for the geomorphological research.
Zusammenfassung
Hochaufgelöste Digitate Geländemodelle (DGM) sind bestens geeignet. um geomorphologische Strukturen wie Flussterrassen systematisch und mit hoher Genauigkeit zu kartieren. Wir haben einen semi-automatischen G/5-Ansatz entwickelt, der unter Verwendung eines 1-m-DGM die Ableitung von stratigraphisch zusammengehörenden Terrassenflächen ermöglicht. Die Methode wurde auf einen Abschnitt der Würm (Südbayern) angewendet und liefert geeignete und plausible Ergebnisse. Die resultierende Korte gibt einen strukturierten Überblick zur stratigraphischen Zuordnung der Terrassen. Die Untersuchung verbessert das Versttindnis zur räumlichen und zeitlichen Genese des Tats und zeigt das große Potenzial von hochaufgelösten DGM in der digitalen Geodatenverarbeitung und für die geomorphologische Forschung.
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Bueche, T., Loesch, K. High-resolution DTM-based stratigraphic correlation of fluvial terraces along River Würm. j. Cartogr. Geogr. inf. 67, 320–325 (2017). https://doi.org/10.1007/BF03544503
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DOI: https://doi.org/10.1007/BF03544503
Keywords
- High-resolution DTM
- geomorphological mapping
- fluvial terraces
- geodata processing
- landscape evolution
- River Würm