Centennial and millennial-scale hydroclimate changes in northwestern Patagonia since 16,000 yr BP
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- 作者：Patricio I. Moreno ; pimoreno@uchile.cl" class="auth_mail" title="E-mail the corresponding author ; Javiera Videla
- 关键词：Northwestern Patagonia ; Southern westerly winds ; Centennial/millennial-scale climate variability ; Holocene ; Antarctic Cold Reversal
- 刊名：Quaternary Science Reviews
- 出版年：2016
- 出版时间：1 October 2016
- 年：2016
- 卷：149
- 期：Complete
- 页码：326-337
- 全文大小：2476 K
文摘
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We report vegetation, climate and fire-regime shifts in northwestern Patagonia (42°S) since 16,000 yr BP.
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The southern westerly winds (SWW) exhibit minimum influence between 7600 and 11,000 yr BP.
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We identify maximum SWW influence between 5300 and 7600 and 13,000–14,500 yr BP.
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Centennial-scale changes in the SWW since 5300 yr BP led to multiple megadroughts.
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The most recent megadrought (1100–1400 yr BP) overlaps with the Medieval Climate Anomaly.