Journal of Maps | |
Geomorphology of the Sulden River basin (Italian Alps) with a focus on sediment connectivity | |
Antonia Spitzer1  Tobias Heckmann2  Francesco Comiti3  Anuschka Buter3  | |
[1] Department of Civil Engineering and Natural Hazards, University of Natural Resources and Life Sciences;Department of Physical Geography, Catholic University Ingolstadt-Eichstätt;Faculty of Science and Technology, Free University of Bozen-Bolzano; | |
关键词: river catchments; object-based map; geomorphic connectivity; sediment cascade; glaciated environments; | |
DOI : 10.1080/17445647.2020.1841036 | |
来源: DOAJ |
【 摘 要 】
An area-wide digital geomorphological map consisting of 12,180 non-overlapping polygons was created for the Sulden river basin (South Tyrol, Italian Alps) with the purpose to carry out a GIS-based sediment connectivity analysis. Thirty-one landform types were defined with respect to their role within sediment cascades. As such, the classification and the related symbology partly differ from a traditional geomorphological map where several areal objects are frequently represented by scaled and rotated point symbols. The catchment (∼130 km²), exhibits a high geomorphological variability as well as relatively large glacierized areas. We used the geomorphological map for a first qualitative estimate of the main differences between the two major sub-basins concerning the components of the sediment cascades: while the Trafoi sub-catchment exhibits a high number of small landslides and debris flow channels (i.e. source and transport landforms), the Sulden sub-catchment is rather characterized by large proglacial and talus landforms (i.e. temporary storage landforms).
【 授权许可】
Unknown