Open AccessModelling of the effects of land use changes on flood hydrograph in a small catchment of the Płaskowicka, southern part of Warsaw, Poland
Author(s) -
Kazimierz Banasik,
Pham Ngoc
Publication year - 2010
Publication title -
annals of warsaw university of life sciences-sggw. land reclamation
Language(s) - English
Resource type - Journals
eISSN - 2081-9617
pISSN - 1898-8857
DOI - 10.2478/v10060-008-0081-7
Subject(s) - hydrograph , flood myth , hydrology (agriculture) , environmental science , surface runoff , urbanization , drainage basin , runoff curve number , hec hms , runoff model , land use , geography , geology , cartography , civil engineering , engineering , ecology , geotechnical engineering , archaeology , biology , economic growth , economics
Modelling of the effects of land use changes on flood hydrograph in a small catchment of the Płaskowicka, southern part of Warsaw, Poland This study concerns the influence of urbanized trend affected on the flood hydrograph in a small catchment in Warsaw. Based on recorded events a selected procedure for simulation rainfall-runoff process has been accepted for flood estimation. The Soil Conservation Services Curve Number method (SCS-CN) and empirical formulae for Nash model parameters, developed by Rao at al. were used to analyze the nine selected events from 2007 to 2009. The analysis confirmed usefulness of the selected procedure, implicated in a home developed computer program, for estimating flood hydrographs as responses of the small urban catchment to heavy rainfall events. Flood hydrographs were estimated for three various stages of land use. The results demonstrate that the peak flood flow would increase over eight times due to urbanisation of the catchment.