| DOI | 10.1029/2020GL087478
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| Multidecadal Changes in Wet Season Precipitation Totals Over the Eastern Amazon |
| Granato-Souza D.; Stahle D.W.; Torbenson M.C.A.; Howard I.M.; Barbosa A.C.; Feng S.; Fernandes K.; Schöngart J.
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| 发表日期 | 2020
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| ISSN | 0094-8276
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| 卷号 | 47期号:8 |
| 英文摘要 | Instrumental observations indicate that Amazon precipitation and streamflow extremes have increased during the last 40 years, possibly due to anthropogenic changes and natural variability. How unprecedented these changes might be is difficult to determine because some paleoclimatic, instrumental, and climate model simulations suggest that Amazonian precipitation and streamflow may be subject to multidecadal variability with return intervals longer than most direct observations. A new 258-year long tree-ring chronology of Cedrela odorata has been developed in the eastern Amazon and has been used to reconstruct wet season precipitation totals from 1759–2016. Reconstructed drought extremes are associated with significant sea surface temperature anomalies over the tropical Pacific and Atlantic Oceans. Strong multidecadal variance is identified in the reconstruction that may reflect a component of natural rainfall variability relevant to forest ecosystem dynamics and suggesting that recent hydroclimate changes over the eastern Amazon may not be unprecedented over the past 258 years. ©2020. American Geophysical Union. All Rights Reserved. |
| 英文关键词 | Climate models; Forestry; Oceanography; Stream flow; Surface waters; Anthropogenic changes; Climate model simulations; Direct observations; Forest ecosystem dynamics; Multidecadal variability; Natural variability; Sea surface temperature anomalies; Tree-ring chronologies; Ecosystems; chronology; climate modeling; dendrochronology; drought; ecosystem dynamics; forest ecosystem; hydrometeorology; hydrometry; paleoclimate; precipitation (climatology); tree ring; wet season; Amazonia; Atlantic Ocean; Pacific Ocean; Pacific Ocean (Tropical); Cedrela odorata |
| 语种 | 英语
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| 来源期刊 | Geophysical Research Letters
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| 文献类型 | 期刊论文
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| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/170464
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| 作者单位 | Department of Geosciences, University of Arkansas, Fayetteville, AR, United States; Civil, Environmental and Geodetic Engineering, Ohio State University, Columbus, OH, United States; Department of Forest Sciences, Federal University of Lavras, Lavras, Brazil; International Research Institute for Climate and Society, Columbia University, Palisades, NY, United States; Instituto Nacional de Pesquisas da Amazonia (INPA), Manaus, Brazil
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推荐引用方式
GB/T 7714 |
Granato-Souza D.,Stahle D.W.,Torbenson M.C.A.,et al. Multidecadal Changes in Wet Season Precipitation Totals Over the Eastern Amazon[J],2020,47(8).
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| APA |
Granato-Souza D..,Stahle D.W..,Torbenson M.C.A..,Howard I.M..,Barbosa A.C..,...&Schöngart J..(2020).Multidecadal Changes in Wet Season Precipitation Totals Over the Eastern Amazon.Geophysical Research Letters,47(8).
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| MLA |
Granato-Souza D.,et al."Multidecadal Changes in Wet Season Precipitation Totals Over the Eastern Amazon".Geophysical Research Letters 47.8(2020).
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