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| Titel |
Extreme pointer years in tree-ring records of Central Spain as evidence of climatic events and the eruption of the Huaynaputina Volcano (Peru, 1600 AD) |
| VerfasserIn |
M. Génova |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1814-9324
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| Digitales Dokument |
URL |
| Erschienen |
In: Climate of the Past ; 8, no. 2 ; Nr. 8, no. 2 (2012-04-13), S.751-764 |
| Datensatznummer |
250005482
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| Publikation (Nr.) |
 copernicus.org/cp-8-751-2012.pdf |
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| Zusammenfassung |
| The study of pointer years of numerous tree-ring chronologies of the central
Iberian Peninsula (Sierra de Guadarrama) could provide complementary
information about climate variability over the last 405 yr. In total, 64
pointer years have been identified: 30 negative (representing minimum
growths) and 34 positive (representing maximum growths), the most
significant of these being 1601, 1963 and 1996 for the negative ones, and
1734 and 1737 for the positive ones. Given that summer precipitation was
found to be the most limiting factor for the growth of Pinus in the Sierra de
Guadarrama in the second half of the 20th century, it is also an explanatory
factor in almost 50% of the extreme growths. Furthermore, these pointer
years and intervals are not evenly distributed throughout time. Both in the
first half of the 17th and in the second half of 20th, they were more frequent and
more extreme and these periods are the most notable for the frequency of
negative pointer years in Central Spain. The interval 1600–1602 is of special
significance, being one of the most unfavourable for tree growth in the
centre of Spain, with 1601 representing the minimum index in the regional
chronology. We infer that this special minimum annual increase was the
effect of the eruption of Huaynaputina, which occurred in Peru at the
beginning of 1600 AD. This is the first time that the effects of this
eruption in the tree-ring records of Southern Europe have been demonstrated. |
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