introduction simulations of river flow and understanding different components of hydrologic cycle are important for programming of the conservation aspects of water resources. since the study area is located in the site of dam construction, the estimation of rainfall runoff and sediment yield are very important for better management of water resources. therefore, in this study, the swat model w...

Abstract Findings on the quality of River Ikpoba samplings is an essential matter because water resources management coupled with hydro-chemical interfaces essence, especially for monitoring and discovering surface-water contaminants origins. Thus, were scrutinized using Stream Flow Simulation Model (SFSM) Multivariate Statistical techniques. Runoff occasion due to land use change shows increas...

No-till (NT) is a conservation system that improves the hydrological regime of agricultural slopes by providing greater surface protection and benefits to physical properties soils. However, isolated use NT not enough control runoff its associated degradation processes. Therefore, this study aimed evaluate under different conditions monitoring 63 rainfall events in two 2.4-ha zero-order catchme...

Nowadays, a major issue is land-use change by urban development that alters the catchment response to meteorological events. Urban basins have less storage capacity and more rapid runoff, so rivers rise quickly during storms higher peak discharge rates than rural catchments. An exemplary case of this situation city Milan (northern Italy) its whole territory extends towards north collecting mete...

The study examined the influence of climate (rainfall and temperature) variability on runoff Rivers Niger Benue confluence at Lokoja, Kogi state, Nigeria. Remotely sensed climatic data for 1979-2014 was obtained from global weather soil water assessment tools website (SWAT), generated using Soil Conservation Service Curve Number method (SCS-CN), Multivariate statistical techniques were used to ...

Global land surface runoff and sea surface temperatures (SST) are analyzed to identify the primary modes of variability of these hydroclimatic data for the period 1905–2002. A monthly water-balance model first is used with global monthly temperature and precipitation data to compute time series of annual gridded runoff for the analysis period. The annual runoff time series data are combined wit...

We show that there are hyperbolic tunnel-number one knots with arbitrarily high bridge number and that “most” tunnelnumber one knots are not one-bridge with respect to an unknotted torus. The proof relies on a connection between bridge number and a certain distance in the curve complex of a genus-two surface.