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Descripción
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| We performed a sensitivity analysis of the InVEST sediment retention mode calibrated in the Llobregat River basin. We employ the Morris method to determine the relative influence of each input variable or factor (xi) on the output or response (y) through a series of model runs. We applied a sensitivity measure (?*) as an extension of the basic Morris approach, and standard deviation (?) of ?y/?xi at several points in the sample space. Our analysis identified the model parameters related to the natural environment as the most influential for sediment export and retention. Accordingly, small changes in variables such as the magnitude and frequency of extreme rainfall events could cause major changes in sediment dynamics, demonstrating the sensitivity of these dynamics to climate change in Mediterranean basins. Parameters directly related to human activities and decisions (such as cover management factor, C) were also influential, especially for sediment exported. The importance of these human-related parameters in the sediment export process suggests that mitigation measures have the potential to at least partially ameliorate climate-change driven changes in sediment exportation. | |
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Internacional
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Si |
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ISSN o ISBN
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978-84-937882-8-5 |
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Entidad relacionada
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SCARCE project |
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Nacionalidad Entidad
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Sin nacionalidad |
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Lugar del congreso
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Tarragona |