FLOOD RISK FOR THREE FLOOD DEFENSE WORKS: DIKES, DAMS AND RIPARIAN WETLANDS
11th International Multidisciplinary Scientific GeoConference SGEM2011, www.sgem.org, SGEM2011 Conference Proceedings/ ISSN 1314-2704, June 20-25, 2011, Vol. 2, 831-838 pp
This paperwork makes an assessment of risk failure in defense works against flood
located along and perpendicular on rivers, including natural riparian wetlands.
Highlighting these areas allow us to make complex studies about the different
possibilities of flood mitigation, considering the surfaces and lowering the flood risk.
Explanations about the “hazard - risk” scheme are made, with flood analyses in many
case studies to propose a computation model for risk and management assessment
accordingly with the risk and hazard maps. The paper details the risk and safety in three
water resource management systems: the overall security degree for transversal systems
is influenced by the number and arrangement of the elements; for safety amplification
on longitudinal works, the effect of derivations and accumulations in the upstream over
the discharge, and the prediction time are important; for the riparian wetlands the state
at a given moment is determinant.
Keywords: risk, hazard, probability, defense works, riparian wetland
PAPER 2011/s13.110: FLOOD RISK FOR THREE FLOOD DEFENSE WORKS: DIKES, DAMS AND RIPARIAN WETLANDS
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