DOI: 10.1016/j.quascirev.2013.08.010
Scopus记录号: 2-s2.0-84884382695
论文题名: The Late Holocene Dry Period: Multiproxy evidence for an extended drought between 2800 and 1850calyr BP across the central Great Basin, USA
作者: Mensing S.A. ; Sharpe S.E. ; Tunno I. ; Sada D.W. ; Thomas J.M. ; Starratt S. ; Smith J.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2013
卷: 78 起始页码: 266
结束页码: 282
语种: 英语
英文关键词: Dipole
; Drought
; ENSO
; Great Basin
; Holocene
; Mollusks
; Pollen
Scopus关键词: Dipole
; ENSO
; Great Basin
; Holocenes
; Mollusks
; Pollen
; Climatology
; Molluscs
; Sediments
; Drought
; climate variation
; diatom
; drought
; Holocene
; meadow
; mollusc
; paleoclimate
; paleoecology
; pollen
; proxy climate record
; Great Basin
; United States
英文摘要: Evidence of a multi-centennial scale dry period between ~2800 and 1850calyr BP is documented by pollen, mollusks, diatoms, and sediment in spring sediments from Stonehouse Meadow in Spring Valley, eastern central Nevada, U.S. We refer to this period as the Late Holocene Dry Period. Based on sediment recovered, Stonehouse Meadow was either absent or severely restricted in size at ~8000calyr BP. Beginning ~7500calyr BP, the meadow became established and persisted to ~3000calyr BP when it began to dry. Comparison of the timing of this late Holocene drought record to multiple records extending from the eastern Sierra Nevada across the central Great Basin to the Great Salt Lake support the interpretation that this dry period was regional. The beginning and ending dates vary among sites, but all sites record multiple centuries of dry climate between 2500 and 1900calyr BP. This duration makes it the longest persistent dry period within the late Holocene. In contrast, sites in the northern Great Basin record either no clear evidence of drought, or have wetter than average climate during this period, suggesting that the northern boundary between wet and dry climates may have been between about 40° and 42°N latitude. This dry in the southwest and wet in the northwest precipitation pattern across the Great Basin is supported by large-scale spatial climate pattern hypotheses involving ENSO, PDO, AMO, and the position of the Aleutian Low and North Pacific High, particularly during winter. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60491
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Geography, University of Nevada, Reno, NV 89557, United States; Desert Research Institute, 2215 Raggio Parkway, Reno, NV 89512, United States; Dipartimento DAFNE, Università degli Studi della Tuscia, Viterbo 01100, Italy; Volcano Science Center, U.S. Geological Survey, Menlo Park, CA 94025, United States
Recommended Citation:
Mensing S.A.,Sharpe S.E.,Tunno I.,et al. The Late Holocene Dry Period: Multiproxy evidence for an extended drought between 2800 and 1850calyr BP across the central Great Basin, USA[J]. Quaternary Science Reviews,2013-01-01,78