Process-Form Relationship in Fan-Piedmont and River Areas Prone to Flooding
A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Hydrology".
Deadline for manuscript submissions: 10 December 2024 | Viewed by 201
Special Issue Editor
Interests: geomorphology; fluvial geomorphology; tectonic geomorphology; geological heritage; engineering geology
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Debris/alluvial fans and piedmont areas such as rivers occur in several tectonic and climatic settings and are relevant sites of sediment routing in the outlet of drainage basins, which can quickly damage the landscape and impact human activities. The distribution of flood-prone areas in fans, piedmont, and river geomorphological systems is strongly controlled by fan head trenches, sheet floods, and channel incisions that dissect the surface. Furthermore, channel hydrology and sheetwash processes strongly control the water flows and the discharge in those areas, which are important parameters in the assessment of flooding hazards. Debris/alluvial fans and piedmont areas do not exhibit predictable behavior and well-defined boundary conditions, as are normally found in fluvial channels. Any single water flooding event proceeding from the apex to the toe is not replicable due to the lateral migration of floods. Large portions of many fan, piedmont, and river areas are inactive because they were isolated due to flooding activity dating from the Holocene times or earlier. The morphological mapping of inactive vs. active areas can be used to identify which sites are more susceptible to flooding. In addition, hydrological studies of channels and piedmont sectors can provide valuable information on the hydraulic regimes dominating the sites, as well as on the potential flooding that will occur. Useful information is also provided by the morphometric parameters of the fan–piedmont and river areas, allowing for further research to improve knowledge of the flooding process. The aims of this Special Issue are to promote papers dealing with the causes of fan-head trenching and channel incision, which are the main processes controlling the location of flood-prone areas, as well as hydrological and morphological studies focusing on improving areas prone to flooding. Moreover, we try to answer the question of how a community should manage the development of fan–piedmont and river areas and to determine the most appropriate zoning of flooding areas, aiming to mitigate flooding. Multidisciplinary approaches to the study of fans, piedmont, and river areas prone to flooding are welcomed.
Prof. Dr. Salvatore Ivo Giano
Guest Editor
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Keywords
- fan, piedmont, and river alluvial systems
- flooding hazards
- geomorphometry
- channel discharges
- engineering geology
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