Hydrological characterisation of four Brazilian catchments using a simple rainfall-streamflow model

I. G. Littlewood*, R. T. Clarke, W. Collischonn, B. F.W. Croke

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    2 Citations (Scopus)

    Abstract

    A rainfall-streamflow model featuring a unit hydrograph component is applied to four Brazilian catchments to characterise and quantify their quite different dynamic rainfall-streamflow behaviours. Using only catchment size (km 2) and time series of daily rainfall, streamflow and air temperature, six dynamic response characteristics (DRCs) are estimated for each catchment. The DRCs include decay time constants for dominant quick- and slow-response components of streamflow, a time-averaged relative volumetric contribution to streamflow from slow flow (i.e. a slow flow index, SFI) and the size of a conceptual catchment wetness store. The six DRCs are compared for the four catchments in the context of their broad hydroclimatological features. Regionalisation of DRCs with respect to physical catchment descriptors (PCDs) is mentioned in terms of the prospect of continuous streamflow simulation at ungauged sites in Brazil from rainfall and PCDs.

    Original languageEnglish
    Title of host publicationProceedings of the iEMSs 3rd Biennial Meeting,Summit on Environmental Modelling and Software
    Publication statusPublished - 2006
    Event3rd Biennial Meeting of the International Environmental Modelling and Software Society: Summit on Environmental Modelling and Software, iEMSs 2006 - Burlington, VT, United States
    Duration: 9 Jul 200613 Jul 2006

    Publication series

    NameProceedings of the iEMSs 3rd Biennial Meeting," Summit on Environmental Modelling and Software"

    Conference

    Conference3rd Biennial Meeting of the International Environmental Modelling and Software Society: Summit on Environmental Modelling and Software, iEMSs 2006
    Country/TerritoryUnited States
    CityBurlington, VT
    Period9/07/0613/07/06

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