the hydrograph at watershed outlet can be expressed as hydrological response of watershed to geomorphological behavior. in present study with the aid of the gis and the concept of instantaneous unit hydrograph, the watershed response was simulated. in present physical method, the iuh is derived from three parameters of time of concentration, storage coefficient and time-area curve of the basin....

This study investigated the role of bank return flow to two medium size rivers in southeast Queensland using a combination hydrograph separation techniques and geochemical baseflow separations. The main aims were provide case demonstrate spatial temporal variability groundwater contributions river systems Southeast Victoria; Avon River Mitchell River. show large variations with higher percentag...

Robit-Bata watershed, Upper Blue Nile basin, Ethiopia. Stable isotopes of water (Oxygen-18 and Deuterium) were used as tracers to estimate the contribution groundwater in shallow hillslope aquifers streamflow watershed. To assess spatiotemporal variability develop a hydrograph separation technique, we collected rainfall, groundwater, samples analyzed their δ18O δ2H isotopic compositions. The lo...

In erosion and sedimentation problems, estimating the range of significant stream flows to include when computing sediment transport can prove challenging in ungauged or under-gauged basins. This paper describes an event-based model incorporating a geomorphologic instantaneous unit hydrograph and stochastic descriptions of peak flows and frequency of storm events from nearby reference watershed...

Runoff sources and dominant flowpaths are still poorly understood in most catchments; consequently, most hydrograph separations are essentially ‘black box’ models where only external information is used. The well-instrumented 490 m2 Hydrohill artificial grassland catchment located near Nanjing (China) was used to examine internal catchment processes. Since groundwater levels never reach the soi...

Global climate change is expected to cause an increase in the intensity and duration of extreme rainfall events that occur today. The leading flooding various world regions, including flat coastal areas such as Serok River catchment Kota Pontianak, influenced by tides, excessive rainfall. This article presents results analysis impact precipitation on peak discharge flood hydrographs catchment, ...

The rainfall input is one of the main factors influencing the magnitude of the runoff response during a flood event. Its temporal and spatial distribution significantly contributes to the formation of hydrograph shape, peak discharge and flood volume. a novel approach to the evaluation of the role of the temporal rainfall pattern of hydrograph is presented in this contribution. The methodology ...

When conducting a master drainage plan for an urban area, catchments are varied from small to large in size. Although there are many hydrologic methods developed for stormwater predictions, the size of catchment often serves as the basis to select a proper method. As always, the common question is how to quantitatively define the size of small watershed, and how to establish the modeling consis...

Title of Thesis: UNCERTAINTY AND SENSITIVITY ANALYSES OF THE MUSKINGUM-CUNGE CHANNEL ROUTING MODEL Stephen Scott Reid, Master of Science, 2008 Thesis directed by: Professor Richard H. McCuen Department of Civil and Environmental Engineering Two widely used channel routing models are the Muskingum and MuskingumCunge (M-C) models. However, no significant research has been conducted on how input p...