## Abstract Determining the hydrological response of urban catchments is of great interest for urban water management. Since most urban catchments are ungauged, this response must be deduced from catchment features, the description of which can be processed more easily today thanks to the availabil
APPLICATION OF UNIT HYDROGRAPH TECHNIQUES TO SOLUTE TRANSPORT IN CATCHMENTS
β Scribed by C. J. BARNES; M. BONELL
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 713 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0885-6087
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β¦ Synopsis
Current models of solute movement in catchments are based on rainfall-runoff models and are consequently biased towards processes which determine the magnitude and timing of water flux. It is shown here that the instantaneous unit hydrograph (IUH), or runoff response function, obtained from a hydrograph is fundamentally different from the residence time distribution which governs the response to solutes/tracers. Using hydrometric and tracer data obtained from a small (25 ha) catchment in the humid tropics a modification of the IUH technique is demonstrated which also allows approximate modelling of the tracer data. New features of the modified conceptual model are identified with known hillslope processes.
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## Abstract Techniques are described by which the transport of nutrients into mammalian cells in suspension can be measured at intervals of 1.5 seconds. By application of these techniques, the existence of a saturable (K~m~ = 85 ΞΌM), nonβconcentrative, transport system for thymidine was demonstrate