• Rainfall intensity is the dominant hydro-meteorological control of runoff response from peatland catchments in high magnitude storms. Runoff processes even saturation-excess overland flow landscapes are sensitive to scale. There a role for attenuation controlling peak discharge large Upland blanket peat widespread headwaters UK catchments, but much it has been degraded through atmospheric pol...

Estimate of sediment load is required in a wide spectrum of water resources engineering problems. The nonlinear nature of suspended sediment load series necessitates the utilization of nonlinear methods to simulate the suspended sediment load. In this study Artificial Neural Networks (ANNs) are employed to estimate daily suspended sediment load. Two different ANN algorithms, Multi Layer Perce...

Nutrient concentrations and loads in streamflow are sensitive to rapidly changing stream chemistry and discharge during storms. Mechanistic models that can simulate water and solute movement at hillslope scales could be useful for predicting concentration-discharge (C-Q) patterns and thereby improve our quantitative understanding of terrestrial-aquatic linkages for targeted catchment management...

A wild®re in an a€orested research catchment presented the rare opportunity to compare the hydrological e€ects of wild®re with the e€ects of clearfelling in the same catchment in the Jonkershoek Valley, in the south-western Western Cape Province of South Africa. The timber plantation, which occupies 57% of the 2 km catchment, had been clearfelled and re-planted to Pinus radiata roughly ®ve year...

This study investigates for the first time the relative importance of dissolved organic carbon (DOC) and particulate organic carbon (POC) in the fluvial carbon flux from an actively eroding peatland catchment in the southern Pennines, UK. Event scale variability in DOC and POC was examined and the annual flux of fluvial organic carbon was estimated for the catchment. At the event scale, both DO...

Representation of the hydrological interaction between the land surface and the atmosphere requires considerable improvement, particularly for predicting evapotranspiration feedbacks for use in models of the general circulation (GCMs) of the atmosphere. The predictive model developed here attempts to use a water balance approach that extracts information from the masses of catchment-scale time ...

Results from two land surface models participating in the PILPS 2(e) experiment [the default European Centre for MediumRange Weather Forecasts (ECMWF) scheme and a modified version labeled MECMWF] are examined. Modifications are implemented in the parameterization of snow sublimation, albedo ageing, surface runoff, and soil hydraulical coefficients. Results of a third run, SECMWF, in which the ...

This paper examines how the combination of simulated discharge and mean catchment residence time (MRT) may be used to subsume flow path process complexity and provide a simple, scalable evaluative data source for water quantity-quality based conceptual models at the catchment scale. A simple Monte Carlo framework is used to evaluate the identifiability of parameters, and how values of mean resi...

This paper presents a first assessment of the hydrometeorological potential of a C-band doppler weather radar recently installed by the Royal Meteorological Institute of Belgium near the village of Wideumont in the southern Ardennes region. An analysis of the vertical profile of reflectivity for two contrasting rainfall events confirms the expected differences between stratiform and convective ...

In this study, we evaluated the variations in sediment discharge between basins from first- order catchment of Akatani River watershed, where discharges as a result heavy rainfall. We tested correlation discharge, topography, and rainfall magnitude using LiDAR datasets. The results showed that specific eroded volume first-order was sufficiently greater than deposited volume, variation determine...