Journal article

Using queuing theory to describe steady-state runoff-runon phenomena and connectivity under spatially variable conditions

OD Jones, GJ Sheridan, PN Lane

WATER RESOURCES RESEARCH | AMER GEOPHYSICAL UNION | Published : 2013

Abstract

Runoff-runon occurs when spatially variable infiltration capacities result in runoff generated in one location potentially infiltrating downslope in an area with higher infiltration capacity. The runoff-runon process is invoked to explain field observations of runoff ratios that decline with plot length and steady-state infiltration rates that increase gradually with rainfall intensity. To illustrate the influence of spatial variability and runoff-runon on net infiltration and runoff generation, we use both (i) field rainfall simulation on soil with a high infiltration capacity and (ii) numerical rainfall-runoff-runon simulations over a spatially variable area. Numerical simulations have sho..

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Grants

Funding Acknowledgements

This project was funded by the Department of Sustainability and Environment, Victoria, and by Melbourne Water. Thanks to Andrew Western and Peter Hairsine for early discussions and inspiration on the spatial variability problem. Thanks to Christopher Sherwin for production of figures in this manuscript. Thanks also to the three anonymous reviewers whose suggestions significantly improved this manuscript.