Flood impact assessment using hydraulic modelling: A case study from Stonavka and Olse river confluence area

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27350%2F12%3A86084807" target="_blank" >RIV/61989100:27350/12:86084807 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27740/12:86084807

Výsledek na webu

<a href="http://dx.doi.org/10.5593/sgem2012" target="_blank" >http://dx.doi.org/10.5593/sgem2012</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5593/sgem2012" target="_blank" >10.5593/sgem2012</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Flood impact assessment using hydraulic modelling: A case study from Stonavka and Olse river confluence area

Popis výsledku v původním jazyce

Floods are one of the three most common natural disasters. Floods threaten human life and property worldwide. The increase in number of human life and material losses indicates the difficulties with flood prevention and reduction of human losses respectively suffering and damage to natural and built environments. Science and technology play an important role in this complex problem. Hydrodynamic modelling is the most used simulation and modelling tool of floods. The main aim of this paper is to assess the flood impact using modelling tools in the Stonavka and Olse river confluence study area, which is prone to periodic flood occurrences. In the study was used digital elevation model created by LIDAR survey with resolution 0.2 m and detailed cross section, because hydrodynamic modelling requires precise data. It has been reconstructed the September 2007 flood, whose flooded area and heights of water surface has been measured. 1D HEC-RAS software has been chosen for modelling unsteady flow (dynamic wave approximation) of 2007 flood time period and steady flow (energy equation method) of Q5 and Q100 peak discharges. It has been evaluated the water surface height, velocity of flood for selected cross sections and inundated area. Land cover layer has been used to calculate the percentage of types of flooded area (meadows, forest, etc.) assessment of land use suitability and potential impacts of flood. The hydrodynamic modelling results comparison with empirical data showed that the chosen model is convenient to proper flood modelling. Most of the flooded land use types are non-irrigated arable land, dump sites and forest. But urban fabric is located in inundation area in some cases too.

Název v anglickém jazyce

Flood impact assessment using hydraulic modelling: A case study from Stonavka and Olse river confluence area

Popis výsledku anglicky

Floods are one of the three most common natural disasters. Floods threaten human life and property worldwide. The increase in number of human life and material losses indicates the difficulties with flood prevention and reduction of human losses respectively suffering and damage to natural and built environments. Science and technology play an important role in this complex problem. Hydrodynamic modelling is the most used simulation and modelling tool of floods. The main aim of this paper is to assess the flood impact using modelling tools in the Stonavka and Olse river confluence study area, which is prone to periodic flood occurrences. In the study was used digital elevation model created by LIDAR survey with resolution 0.2 m and detailed cross section, because hydrodynamic modelling requires precise data. It has been reconstructed the September 2007 flood, whose flooded area and heights of water surface has been measured. 1D HEC-RAS software has been chosen for modelling unsteady flow (dynamic wave approximation) of 2007 flood time period and steady flow (energy equation method) of Q5 and Q100 peak discharges. It has been evaluated the water surface height, velocity of flood for selected cross sections and inundated area. Land cover layer has been used to calculate the percentage of types of flooded area (meadows, forest, etc.) assessment of land use suitability and potential impacts of flood. The hydrodynamic modelling results comparison with empirical data showed that the chosen model is convenient to proper flood modelling. Most of the flooded land use types are non-irrigated arable land, dump sites and forest. But urban fabric is located in inundation area in some cases too.

Druh

D - Stať ve sborníku

CEP obor

DA - Hydrologie a limnologie

OECD FORD obor

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Projekt

<a href="/cs/project/ED1.1.00%2F02.0070" target="_blank" >ED1.1.00/02.0070: Centrum excelence IT4Innovations</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

12th International Multidisciplinary Scientific GeoConference SGEM 2012 : conference proceedings. Volume I-V

ISBN

—

ISSN

1314-2704

e-ISSN

—

Počet stran výsledku

7

Strana od-do

671-677

Název nakladatele

STEF92 Technology Ltd.

Místo vydání

Sofia

Místo konání akce

Albena

Datum konání akce

17. 6. 2012

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000348533800089