Predictions
in Ungauged Basins: Promise and Progress (Proceedings of symposium S7 held during the
Seventh IAHS Scientific Assembly at Foz do Iguaçu, Brazil, April 2005). IAHS
Publ. 303, 2006, 7-14.
Hydrological conceptual models of two Haute-Mentue
subcatchments through environmental tracing and TDR soil moisture measurements
Daniela Balin1, Christophe Joerin2 & André Musy1
1 Hydrology and Land Improvement Laboratory / HYDRAM, ISTE, Swiss Federal Institute of Technology, EPFL, 1015 Lausanne, Switzerland
2 Federal Office for Water and Geology (FOWG), Bern, Switzerland
Abstract This paper presents the experimental work that was performed on the Haute-Mentue catchment in Switzerland in order to study the hydrological processes at different scales. First, an analysis of the hydrological response at the catchment scale was performed by means of environmental tracing, which enabled identification of two types of hydrological behaviour, mainly explained by the geological conditions. Second, two other experiments have been conducted at the hillslope scale, using the TDR method in order to monitor soil moisture variations at different depths along two typical topographical profiles on both morainic and molassic deposits. These experiments helped in identifying the mechanisms explaining the two different observed hydrological behaviours. Association of the two techniques led to a general conceptual model of two Haute-Mentue head subcatchments.
Key
words environmental tracing; hydrological
conceptual models; hydrological processes; TDR