Assessment Of Damages Caused By Different
Flood Types
Author(s)
H. Kreibich & B. Dimitrova
Abstract
Comprehensive risk assessments are essential to integrated, efficient flood
management. However, investigations concentrate mainly on scenarios of slowly
rising riverine floods and their loss assessment. The common loss models are
focused on the water level as the primary factor determining damage, although,
for example during flash floods, the velocity might be much more important. To
improve the knowledge about flood losses and the loss-influencing factors, 1697
households affected by the Elbe and Danube flood in 2002 were interviewed.
Cases affected by high groundwater levels, riverine floods, flash floods and dyke
breaches were identified and separately analyzed. The four flood types show
significantly different impact characteristics concerning the factors of water
level, flood duration, flow velocity and contamination. In addition, the resulting
losses differ significantly. Common loss models tested, i.e. stage-damage curves,
were as such not suitable to estimate losses due to dyke breaches and high
groundwater levels. Therefore, new loss models should be developed for these
special flood situations.
Keywords: flash floods, flood loss, high groundwater levels, dyke breaches,
riverine floods, impact, stage-damage curve.
1 Introduction
Comprehensive assessments that quantify the flood risk are essential for an
efficient flood management [1–3]. Such analyses require the estimation of flood
losses. A central idea in flood loss estimation is the concept of stage-damage
curves, which have in common that direct monetary losses are mainly related to
Keywords
flash floods, flood loss, high groundwater levels, dyke breaches,
riverine floods, impact, stage-damage curve
Related Book
Other papers in this volume
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