Information - HS48 Study of hillslope processes for determining catchment similarity (co-listed in NP)
This session will focus on analytical and experimental investigation of individual hillslope processes that govern the overall catchment response (e.g. overland flow, subsuface stormflow, growth of saturation zones). Studies of these processes are of utmost importance for exploring the catchment similarity behaviour. Earlier similarity studies, which mostly focused on comparing total channel flow in catchments instead of similarity of governing flow processes on which such response depends, have not produced the desired outcomes. Therefore an approach that investigates similarity of individual flow processes within a catchment is needed. However, the current lack of underlying analytical studies relating dominant flow processes with hillslope attributes has frustrated progress with such process-wise similarity approach.
To investigate catchment similarity, quantitative relationships between the governing hillslope flow processes and non-dimensional similarity parameters given by hillslope attributes such as topography, soil and climate are needed. Such parameters will also aid in the translation of hydrologic responses from gauged to ungauged catchments.
The main objectives of this session are (a) to encourage methodological studies dealing with individual hydrological processes, and (b) to increase the awareness about the importance of such investigation on overall study of catchment similarity.
Preliminary List of Solicited Speakers
Prof. Murugesu Sivapalan, University of Illinois at Urbana-Champaign, Urbana, IL, USA
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