Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL091182 |
Reduced lower Mississippi River discharge during the Medieval era | |
Charlotte Wiman; Brynnydd Hamilton; Sylvia G. Dee; Samuel E. Muñ; oz | |
2021-01-19 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | Changes in climate are expected to influence discharge of the lower Mississippi River, but projections disagree on whether discharge will increase or decrease over the coming century. Using a reconstructed median peak annual flow for the past 1,500 years based on geomorphic scaling laws, we show that discharge on the lower Mississippi River decreased during the Medieval era (c. AD 1000–1200) — a period of regionally warm and dry conditions that serves as a partial analogue for projected warming. These changes in discharge inferred from channel morphology track discharge simulated in the Community Earth System Model Last Millennium Ensemble (CESM‐LME). Simulations show that decreased Medieval‐era discharge is driven primarily by regionally enhanced evapotranspiration. Our findings are consistent with 21st century projections of decreased discharge on the lower Mississippi River under moderate greenhouse forcing scenarios, and demonstrate consistency between reconstructed and simulated discharge over the last millennium. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/312298 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Charlotte Wiman,Brynnydd Hamilton,Sylvia G. Dee,et al. Reduced lower Mississippi River discharge during the Medieval era[J]. Geophysical Research Letters,2021. |
APA | Charlotte Wiman,Brynnydd Hamilton,Sylvia G. Dee,Samuel E. Muñ,&oz.(2021).Reduced lower Mississippi River discharge during the Medieval era.Geophysical Research Letters. |
MLA | Charlotte Wiman,et al."Reduced lower Mississippi River discharge during the Medieval era".Geophysical Research Letters (2021). |
条目包含的文件 | 条目无相关文件。 |
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