TY  - CHAP
A1  - Bronstert, Axel
A1  - Crisologo, Irene
A1  - Heistermann, Maik
A1  - Öztürk, Ugur
A1  - Vogel, Kristin
A1  - Wendi, Dadiyorto
T1  - Flash-floods: more often, more severe, more damaging?
BT  - An analysis of hydro-geo-environmental conditions and anthropogenic impacts
T2  - Climate change, hazards and adaptation options: handling the impacts of a changing climate
N2  - In recent years, urban and rural flash floods in Europe and abroad have gained considerable attention because of their sudden occurrence, severe material damages and even danger to life of inhabitants. This contribution addresses questions about possibly changing environmental conditions which might have altered the occurrence frequencies of such events and their consequences. We analyze the following major fields of environmental changes. 

Altered high intensity rain storm conditions, as a consequence of regionalwarming; Possibly altered runoff generation conditions in response to high intensity rainfall events; Possibly altered runoff concentration conditions in response to the usage and management of the landscape, such as agricultural, forest practices or rural roads; Effects of engineering measures in the catchment, such as retention basins, check dams, culverts, or river and geomorphological engineering measures.
 
We take the flash-flood in Braunsbach, SW-Germany, as an example, where a particularly concise flash flood event occurred at the end of May 2016. This extreme cascading natural event led to immense damage in this particular village. The event is retrospectively analyzed with regard to meteorology, hydrology, geomorphology and damage to obtain a quantitative assessment of the processes and their development. 

The results show that it was a very rare rainfall event with extreme intensities, which in combination with catchment properties and altered environmental conditions led to extreme runoff, extreme debris flow and immense damages. Due to the complex and interacting processes, no single flood cause can be identified, since only the interplay of those led to such an event. We have shown that environmental changes are important, but-at least for this case study-even natural weather and hydrologic conditions would still have resulted in an extreme flash flood event.
KW  - Flash flood
KW  - Climate change
KW  - Extreme rainfall
KW  - Anthropogenic impacts
Y1  - 2020
SN  - 978-3-030-37425-9
SN  - 978-3-030-37424-2
U6  - https://doi.org/10.1007/978-3-030-37425-9_12
SN  - 1610-2010
SP  - 225
EP  - 244
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Lück, Erika
A1  - Balderjahn, Ingo
A1  - Kamm, Birgit
A1  - Greil, Holle
A1  - Wallschläger, Hans-Dieter
A1  - Jessel, Beate
A1  - Böckmann, Christine
A1  - Oberhänsli, Roland
A1  - Soyez, Konrad
A1  - Schmeer, Ernst
A1  - Blumenstein, Oswald
A1  - Berndt, Klaus-Peter
A1  - Edeling, Thomas
A1  - Friedrich, Sabine
A1  - Kaden, Klaus
A1  - Scheller, Frieder W.
A1  - Petersen, Hans-Georg
A1  - Asche, Hartmut
A1  - Bronstert, Axel
A1  - Giest, Hartmut
A1  - Gaedke, Ursula
A1  - Löhmannsröben, Hans-Gerd
A1  - Jeltsch, Florian
A1  - Jänkel, Ralph
A1  - Gzik, Axel
A1  - Bork, Hans-Rudolf
A1  - Bork, Hans-Rudolf
T1  - Umweltforschung für das Land Brandenburg : Arbeitsgruppen und Professuren
Y1  - 2000
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-3797
ER  -