Modelling the hydrological response of mediterranean catchments, Prades, Catalonia. The use of distributed models as aids to hypothesis formulation
✍ Scribed by JOSEP PIÑOL; KEITH BEVEN; JAMES FREER
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 402 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0885-6087
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✦ Synopsis
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 modi®cations of the model in a hypothesis testing framework, including an attempt to modify the topographic index approach to re¯ect the expansion of the eective area of subsurface ¯ow during the wetting-up sequence. It is found that slight improvements in modelling eciency are possible but that dierent model parameter distributions are appropriate for dierent parts of the record. The model was much more successful for the catchment producing the higher runo volumes.