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A shift in the spatial pattern of Iberian droughts during the 17th century

机译:17世纪伊比利亚干旱的空间格局转变

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In this paper, series of drought occurrence and drought extension in the Iberian Peninsula are constructed for the 1600–1750 period from seven rogation series. These rogation ceremony records come from Bilbao, Catalonia, Zamora, Zaragoza, Toledo, Murcia and Seville. They are distributed across the Peninsula and include the areas with the most characteristic Iberian climate types, influenced by the Atlantic and the Mediterranean conditions, described from modern data. A seasonal division of the series shows that spring is a critical season for rogation series in most of Iberia, being Bilbao the only site were the highest number of rogations is detected for a different season. The annual analysis of the series shows a dramatic difference between the period 1600–1652, when droughts are characterized by its local character; and the period 1653–1749, when they affect to broader regions or even to the whole Peninsula. The analysis of spring series confirms the existence of the two periods detected in the annual analysis. Finally, secondary documentary sources are used to further characterise the two most extended droughts in the period, 1664 and 1680, and to verify the extension of the areas affected by droughts recorded through rogation series.
机译:在本文中,伊比利亚半岛的干旱发生和干旱扩展系列是由七个变系列构建的,用于1600-1750年时期。这些rog仪仪式的记录来自毕尔巴鄂,加泰罗尼亚,萨莫拉,萨拉戈萨,托莱多,穆尔西亚和塞维利亚。它们分布在整个半岛上,并包括受现代数据描述的受大西洋和地中海气候影响最具有伊比利亚气候特征的地区。该系列的季节性划分表明,春季是伊比利亚大部分地区的食肉系列的关键季节,是毕尔巴鄂唯一在不同季节检测到食肉数量最多的站点。该系列的年度分析显示,在1600–1652年期间,干旱以其局部特征为特征;在1653年至1749年期间,它们影响到更广泛的地区甚至整个半岛。春季系列分析确认了在年度分析中检测到的两个时期的存在。最后,二手文献资料被用来进一步表征1664年和1680年期间两次最严重的干旱,并通过rogation系列来验证受干旱影响的地区的扩展。

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