An application of a physically based semi-distributed model to the Balquhidder catchments

A physically based semi-distributed model, TOPMODEL, is applied to the two catchments at Balquhidder. The model uses a topographic index which highlights hydrologically significant areas within the catchments. The model is used to simulate runoff and to compare the behaviour of the two catchments. The results indicate that a large proportion of stream water is generated from saturated contributing areas (source areas); the Monachyle has higher contributions of water of this type. The results may also indicate that the hydrology of the Monachyle catchment has changed following agricultural improvement by increased drainage; a damped subsurface response is observed.

[1]  P. Whitehead,et al.  An introduction to the research in the Balquhidder experimental catchments , 1993 .

[2]  George M. Hornberger,et al.  Topographic effects on flow path and surface water chemistry of the Llyn Brianne catchments in Wales , 1990 .

[3]  K. Beven,et al.  The Relationship of Catchment Topography and Soil Hydraulic Characteristics to Lake Alkalinity in the , 1989 .

[4]  Keith Beven,et al.  Runoff Production and Flood Frequency in Catchments of Order n: An Alternative Approach , 1986 .

[5]  N. Chappell,et al.  Preliminary analysis of water and solute movement beneath a coniferous hillslope in Mid-Wales, U.K. , 1990 .

[6]  K. Beven,et al.  THE PREDICTION OF HILLSLOPE FLOW PATHS FOR DISTRIBUTED HYDROLOGICAL MODELLING USING DIGITAL TERRAIN MODELS , 1991 .

[7]  Nils Christophersen,et al.  A Model for Streamwater Chemistry at Birkenes, Norway , 1982 .

[8]  K. Beven,et al.  Testing a physically-based flood forecasting model (TOPMODEL) for three U.K. catchments , 1984 .

[9]  Keith Beven,et al.  Catchment geomorphology and the dynamics of runoff contributing areas , 1983 .

[10]  J. R. Blackie,et al.  Lumped catchment models , 1985 .

[11]  A. Calver,et al.  Calibration, sensitivity and validation of a physically-based rainfall-runoff model , 1988 .

[12]  S. Bergström,et al.  Integrated modelling of runoff, alkalinity, and pH on a daily basis , 1985 .

[13]  K. Beven,et al.  A physically based, variable contributing area model of basin hydrology , 1979 .

[14]  K. Beven.  On subsurface stormflow: Predictions with simple kinematic theory for saturated and unsaturated flows , 1982 .

[15]  D. Waters,et al.  The Importance of Hydrological Source Areas in Terrestrial Liming , 1991 .