DOI: 10.1002/2014GL060183
论文题名: Centennial-to-millennial hydrologic trends and variability along the North Atlantic Coast, USA, during the Holocene
作者: Newby P.E. ; Shuman B.N. ; Donnelly J.P. ; Karnauskas K.B. ; Marsicek J.
刊名: Geophysical Research Letters
ISSN: 0094-10584
EISSN: 1944-10315
出版年: 2014
卷: 41, 期: 12 起始页码: 4300
结束页码: 4307
语种: 英语
Scopus关键词: Holocenes
; North Atlantic
; climate variation
; geophysical survey
; Holocene
; hydrological change
; water level
; Arctic
; Atlantic Coast [North America]
; Atlantic Coast [United States]
; Greenland
; Massachusetts
; United States
英文摘要: Geophysical and sedimentary records from five lakes in Massachusetts reveal regionally coherent hydrologic variability during the Holocene. All of the lakes have risen since ∼9.0 ka, but multicentury droughts after 5.6 ka repeatedly lowered their water levels. Quantified water level histories from the three best-studied lakes share ≥70% of their reconstructed variance. Four prominent low-water phases at 4.9-4.6, 4.2-3.9, 2.9-2.1, and 1.3-1.2 ka were synchronous across coastal lakes, even after accounting for age uncertainties. The droughts also affected sites up to ∼200 km inland, but water level changes at 5.6-4.9 ka appear out of phase between inland and coastal lakes. During the enhanced multicentury variability after ∼5.6 ka, droughts coincided with cooling in Greenland and may indicate circulation changes across the North Atlantic region. Overall, the records demonstrate that current water levels are exceptionally high and confirm the sensitivity of water resources in the northeast U.S. to climate change. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84902949893&doi=10.1002%2f2014GL060183&partnerID=40&md5=1f056d2f9063f67ca175d3fdfda0d9c0
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7848
Appears in Collections: 气候减缓与适应
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作者单位: Department of Geological Sciences, Brown University, Providence, RI, United States
Recommended Citation:
Newby P.E.,Shuman B.N.,Donnelly J.P.,et al. Centennial-to-millennial hydrologic trends and variability along the North Atlantic Coast, USA, during the Holocene[J]. Geophysical Research Letters,2014-01-01,41(12).