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    Evaluation of streamflow changes due to climate variation and human activities using the Budyko approach

    Access Status
    Fulltext not available
    Authors
    Kazemi, H.
    Sarukkalige, Ranjan
    Badrzadeh, H.
    Date
    2019
    Type
    Journal Article
    
    Metadata
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    Citation
    Kazemi, H. and Sarukkalige, R. and Badrzadeh, H. 2019. Evaluation of streamflow changes due to climate variation and human activities using the Budyko approach. Environmental Earth Sciences. 78 (24): ARTN 713.
    Source Title
    Environmental Earth Sciences
    DOI
    10.1007/s12665-019-8735-9
    ISSN
    1866-6280
    Faculty
    Faculty of Science and Engineering
    School
    School of Civil and Mechanical Engineering
    URI
    http://hdl.handle.net/20.500.11937/79234
    Collection
    • Curtin Research Publications
    Abstract

    This paper presents a successful application of the Budyko approach to assess the streamflow changes in the Harvey Catchment, Western Australia, due to climate variation and human activities. For cross-validation, results from the Budyko approach were compared with the HBV hydrology model. A hybrid estimation-optimisation algorithm (ANN-PSO) was used to automatically calibrate the HBV model to increase the accuracy by preventing human errors and to reduce the time-consuming process associated with the calibration. Results from the both approaches indicate climate change is the dominant factor in streamflow reduction in the Harvey Catchment with 55% attribution. Additionally, the Budyko approach was applied to estimate future streamflow changes in the Harvey River. Results show a significant reduction in streamflow (i.e., 38–58%) by 2100. The use of the Budyko approach to reliably ascribe the impacts of climate change and human activities to variation in streamflow was upheld. The Budyko approach, which uses limited hydrological data, can also be adopted as an alternative to hydrological modelling in predicting future streamflow changes, especially in ungauged catchments and catchments with limited hydrological information.

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