 |
| Titel |
Incorporating river morphological changes to flood risk assessment: uncertainties, methodology and application |
| VerfasserIn |
C. Neuhold, P. Stanzel, H. P. Nachtnebel |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1561-8633
|
| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 9, no. 3 ; Nr. 9, no. 3 (2009-05-27), S.789-799 |
| Datensatznummer |
250006786
|
| Publikation (Nr.) |
 copernicus.org/nhess-9-789-2009.pdf |
|
|
|
|
|
| Zusammenfassung |
| Risk zonation maps are mostly derived from design floods which propagate
through the study area. The respective delineation of inundated flood plains
is a fundamental input for the flood risk assessment of exposed objects. It
is implicitly assumed that the river morphology will not vary, even though
it is obvious that the river bed elevation can quickly and drastically
change during flood events. The objectives of this study were to integrate
the river bed dynamics into the flood risk assessment procedure and to
quantify associated uncertainties. The proposed concept was applied to the
River Ill in the Western Austrian Alps. In total, 138 flood and associated
sediment transport scenarios were considered, simulated and illustrated for
the main river stem. The calculated morphological changes of the river bed
at the moment of peak flow provided a basis to estimate the variability of
possible water surface levels and inundation lines which should be
incorporated into flood hazard assessment. In the context of vulnerability
assessment an advanced methodological approach to assess flood risk based on
damage probability functions is described. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|