Flood evolution assessment and monitoring using hydrological modelling techniques: analysis of the inundation areas at a regional scale

International Conference on Water Resource and Environment 2016

地球科学;生态环境科学

Podhoranyi, M.^1 ; Kuchar, S.^1 ; Portero, A.^1

IT4Innovations, VSB - Technical University of Ostrava, 17. listopadu 15/2172, Ostrava

708 33, Czech Republic^1

关键词: Assessment and monitoring;    Czech Republic;    Hydrodynamic model;    Hydrological modelling;    Inundation areas;    Monitoring and assessment;    Primary objective;    Regional scale;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/39/1/012043/pdf
DOI  :  10.1088/1755-1315/39/1/012043

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The primary objective of this study is to present techniques that cover usage of a hydrodynamic model as the main tool for monitoring and assessment of flood events while focusing on modelling of inundation areas. We analyzed the 2010 flood event (14th May - 20th May) that occurred in the Moravian-Silesian region (Czech Republic). Under investigation were four main catchments: Opava, Odra, Ole and Ostravice. Four hydrodynamic models were created and implemented into the Floreon+ platform in order to map inundation areas that arose during the flood event. In order to study the dynamics of the water, we applied an unsteady flow simulation for the entire area (HEC-RAS 4.1). The inundation areas were monitored, evaluated and recorded semi-automatically by means of the Floreon+ platform. We focused on information about the extent and presence of the flood areas. The modeled flooded areas were verified by comparing them with real data from different sources (official reports, aerial photos and hydrological networks). The study confirmed that hydrodynamic modeling is a very useful tool for mapping and monitoring of inundation areas. Overall, our models detected 48 inundation areas during the 2010 flood event.