A multivariate-driven approach for disentangling the reduction in near-natural Iberian water resources post-1980
نویسندگان
چکیده
Abstract. Although the literature still debates how several anthropogenic and natural factors have contributed to recent streamflow decline in Iberian Peninsula, a continuing decrease winter precipitation (WP) has been noticed this area since 1980s associated with large-scale atmospheric drivers. This contribution assesses potential propagation of WP deficit into water resource variability. For purpose, novel “NEar-Natural Water Inflows REservoirs Spain” (NENWIRES) dataset was created. The results highlight that higher decreases inflows (WWIs) are always related reductions. However, while strongly provoked by enhancement North Atlantic Oscillation index (NAOi) during study period, WWI reductions could not be essentially linked NAOi behaviour NENWIRES catchments. Instead, intensification drought conditions forest extension promoted over target aided understanding why were generally than decreases. In summary, most humid catchments registered mainly enhancement, whereas evapotranspiration increases seem explain losses semi-arid environments. sheds light on debate regarding magnitude drivers southern European regions.
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ژورنال
عنوان ژورنال: Hydrology and Earth System Sciences
سال: 2022
ISSN: ['1607-7938', '1027-5606']
DOI: https://doi.org/10.5194/hess-26-4251-2022