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Modelling the hydrological response of Mediterranean catchments, Prades, Catalonia : the use of distributed models as aids to hypothesis formulation.

Research output: Contribution to journalJournal article


Journal publication date07/1997
JournalHydrological Processes
Number of pages20
Original languageEnglish


This paper attempts to extend the physical arguments underlying the distributed TOPMODEL concepts in an application to the strongly seasonal contributing area responses in two adjacent small mediterranean catchments in the Prades region of Catalonia, Spain. A perceptual model of hydrological response in these catchments is used to suggest possible modifications of the model in a hypothesis testing framework, including an attempt to modify the topographic index approach to reflect the expansion of the effective area of subsurface flow during the wetting-up sequence. It is found that slight improvements in modelling efficiency are possible but that different model parameter distributions are appropriate for different parts of the record. The model was much more successful for the catchment producing the higher runoff volumes.