Mots-clés
Crue Drainage Ecoulement fluvial Lužnice Modèle Modèle numérique de terrain Onde de crue Plaine d'inondation Rétention de l'eau Système d'information géographique Tchèque république Topographie Czech Republic Digital elevation model Drainage Flood Flood wave Floodplain Geographical information system Lužnice river Model Stream flow Topography Water retention Crecida Drenaje Escorrentíafluvial Llanura de inundación Modelo Modelo numérico de terreno República Checa Retención del agua Sistema de información geográfica TopografíaFloodplain retention capacity assessment for Lužnice river
Auteurs :DOSTÁL, T.
DAVID, V.
Description :
One of main topics of interdisciplinary project NIVA – Water Retention in Floodplains and Possibilities of Retention Capacity Increase is the assessment of flood wave transformation in the floodplain. Despite the fact that the main influence on flood wave transformation is flow retardation due to the flow velocity decrease, the retention in surface depressions within floodplain has been analyzed to get better overview of whole transformation process. Detailed digital relief model (DRM) has been used for given purposes to be able to analyze terrain depressions volumes. The methodology itself is based on analysis of areas inundated by water at different elevation levels. The method was then applied on the area of Lužnice River floodplain section to assess the retention capacity of real floodplain with natural character which usually means higher surface retention capacity in comparison to trained rivers. - (EN)
Type de document :
Article de périodique
Source :
Acta Universitatis Carolinae. Geographica, issn : 0300-5402, 2012, vol. 47, n°. 1, p. 5-12, nombre de pages : 8, Références bibliographiques : 12 ref.
Date :
2012
Editeur :
Pays édition : Tchecoslovaquie, Praha, Universita Karlova
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)