Studie in »Nature Geoscience«, 4.7.2022 (engl. Originalfassung)
Hot, dry summers and cool, wet winters make winter rainfall vital for the region’s ecological and economic health. The region receives on average 732 mm yr–1 (±141 mm yr–1) of rain, roughly 40% of this during winter months. Yet a robust annual drying of 5 to 10 mm yr–1 per decade has been recorded in the Iberian Peninsula throughout the second half of the twentieth century, with a further 10–20% drop in winter precipitation expected by the end of the twenty-first century. These projected changes make agriculture of the Iberian region some of the most vulnerable in Europe. Olive-growing regions in southern Spain are projected to suffer a 30% decline in production by 2100, and grape-growing regions across the Iberian Peninsula are projected to decrease in area between 25% and 99% by 2050 due to severe water deficits that render land unsuitable for viticulture. (...) The characteristics of the Azores High have varied over the past 1,200 years.
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