 |
| Titel |
A joint probability approach using a 1-D hydrodynamic model for estimating high water level frequencies in the Lower Rhine Delta |
| VerfasserIn |
H. Zhong, P.-J. Overloop, P. H. A. J. M. Gelder |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1561-8633
|
| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 13, no. 7 ; Nr. 13, no. 7 (2013-07-25), S.1841-1852 |
| Datensatznummer |
250018558
|
| Publikation (Nr.) |
 copernicus.org/nhess-13-1841-2013.pdf |
|
|
|
|
|
| Zusammenfassung |
| The Lower Rhine Delta, a transitional area between the River Rhine and Meuse
and the North Sea, is at risk of flooding induced by infrequent events of a
storm surge or upstream flooding, or by more infrequent events of a
combination of both. A joint probability analysis of the astronomical tide,
the wind induced storm surge, the Rhine flow and the Meuse flow at the
boundaries is established in order to produce the joint probability
distribution of potential flood events. Three individual joint
probability distributions are established corresponding to three potential
flooding causes: storm surges and normal Rhine discharges, normal sea levels
and high Rhine discharges, and storm surges and high Rhine discharges. For each
category, its corresponding joint probability distribution is applied, in
order to stochastically simulate a large number of scenarios. These
scenarios can be used as inputs to a deterministic 1-D hydrodynamic model in
order to estimate the high water level frequency curves at the transitional
locations. The results present the exceedance probability of the present
design water level for the economically important cities of Rotterdam and
Dordrecht. The calculated exceedance probability is evaluated and compared
to the governmental norm. Moreover, the impact of climate change on the high
water level frequency curves is quantified for the year 2050 in order to
assist in decisions regarding the adaptation of the operational water
management system and the flood defense system. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|