https://scholars.lib.ntu.edu.tw/handle/123456789/626990
標題: | Central Mediterranean rainfall varied with high northern latitude temperatures during the last deglaciation | 作者: | Columbu, A Spotl, C Fohlmeister, J Hu, HM Chiarini, V Hellstrom, J Cheng, H CHUAN-CHOU SHEN De Waele, J |
關鍵字: | CLIMATE VARIABILITY; ISOTOPIC COMPOSITION; GLACIAL MAXIMUM; SOUTHERN ALPS; RECORD; GREENLAND; SPELEOTHEMS; WATER; EVENTS; RECONSTRUCTION | 公開日期: | 十二月-2022 | 出版社: | SPRINGERNATURE | 卷: | 3 | 期: | 1 | 來源出版物: | COMMUNICATIONS EARTH & ENVIRONMENT | 摘要: | Similarly to the effects of current climate change, the last deglaciation (Termination I) rapidly altered northern latitude temperatures and ice-sheet extent, as well as the Atlantic Meridional Overturning Circulation. However, it is still unclear how these changes propagated and impacted the central Mediterranean continental rainfall variability. This prevents a full understanding on how global warming will affect Mediterranean areas in the future. Here, we present a high-resolution reconstruction of rainfall changes in the central Mediterranean across Termination I, based on a novel δ18O time series from a southern Italian stalagmite. Across Termination I the availability of Atlantic moisture varied in response to northern latitude temperature increases (decreases) and ice-sheet decreases (increases), promoting a higher (lower) intensity of the Atlantic Meridional Overturning Circulation, and resulting in a relatively wetter (drier) climate in the Mediterranean. In the light of future warming, this study emphasises the role of high-latitude climate changes in causing rainfall variation in highly populated Mediterranean areas. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/626990 | ISSN: | 2662-4435 | DOI: | 10.1038/s43247-022-00509-3 |
顯示於: | 地質科學系 |
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