Open AccessLand use influence on flood routing and retention from the viewpoint of hydromechanics
Author(s) -
Bornschein A.,
Pohl R.
Publication year - 2018
Publication title -
journal of flood risk management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.049
H-Index - 36
ISSN - 1753-318X
DOI - 10.1111/jfr3.12289
Subject(s) - floodplain , flood myth , hydrology (agriculture) , routing (electronic design automation) , channel (broadcasting) , fluvial , environmental science , reliability (semiconductor) , computer science , geology , environmental resource management , water resource management , geotechnical engineering , geography , geomorphology , computer network , cartography , archaeology , power (physics) , physics , structural basin , quantum mechanics
Implementing new concepts and measures for flood risk management may be restricted by hydromechanical processes. These processes govern the movement of water masses within rivers and their floodplains. Different hydraulic processes are still not fully understood or cannot be described satisfactorily by hydro‐numerical models due to uncertainty in input data. The choosing of the correct surface roughness has a huge influence on the results of hydro‐numerical calculation of historical and design flood events and their reliability for the assessment of flood risk mitigation measures like floodplain restoration. The authors try to outline the various effects of channel and floodplain roughness on fluvial flood routing and give examples. A method is presented for peak discharge calculation of historical flood events.