DOI: 10.1016/j.quascirev.2016.01.010
Scopus记录号: 2-s2.0-84956870913
论文题名: Drought modulated by North Atlantic sea surface temperatures for the last 3,000 years along the northwestern Gulf of Mexico
作者: Livsey D. ; Simms A.R. ; Hangsterfer A. ; Nisbet R.A. ; DeWitt R.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2016
卷: 135 起始页码: 54
结束页码: 64
语种: 英语
英文关键词: Atlantic multidecadal oscillation
; Drought
; Holocene
; Machine learning
; Texas
; XRF
Scopus关键词: Artificial intelligence
; Atmospheric temperature
; Forestry
; Ice
; Learning systems
; Oceanography
; Surface waters
; Transfer functions
; Trees (mathematics)
; Atlantic multidecadal oscillations
; Highest resolutions
; Holocenes
; Medieval Warm Period
; Precipitation data
; Spatial temporal analysis
; Texas
; X ray fluorescence
; Drought
; Atlantic Multidecadal Oscillation
; drought
; Hypsithermal
; ice-rafted debris
; Little Ice Age
; machine learning
; Medieval Warm Period
; precipitation (climatology)
; proxy climate record
; quantitative analysis
; reconstruction
; Roman era
; sea surface temperature
; spatiotemporal analysis
; transfer function
; trend analysis
; X-ray fluorescence
; Atlantic Ocean
; Atlantic Ocean (North)
; Gulf of Mexico
; Texas
; United States
英文摘要: In 2012 the most severe United States drought since the 1930's occurred, highlighting the need for a better understanding of the climate factors driving droughts. Spatial-temporal analysis of United States precipitation data from 1900 to 1999 indicates that the Atlantic Multidecadal Oscillation (AMO) primarily modulates drought frequency. Tree rings provide the highest resolution and most spatially distributed drought records beyond secular time-series; however, as most tree-ring records only extend to ca. 1000 years before present (BP), a new broadly distributed, quantitative, multi-millennial, proxy of past drought is needed to determine if the AMO modulated drought across North America through the late Holocene. In this study, we develop a new quantitative drought proxy from a transfer function between X-Ray Fluorescence (XRF) derived elemental data from a Texas playa and a tree-ring drought record. Using this transfer function, a 954-year tree-ring drought record was extended to ca. 3000 BP. Changes in the extended drought record correspond with timing of the Roman Climate Optimum, Medieval Warm Period, Little Ice Age, and changes in the AMO as recorded in a proxy record derived from North Atlantic ice-rafted debris. These results indicate that lacustrine-derived XRF element data can be used as a quantitative tool to reconstruct past drought records, and suggest that AMO modulated drought in southern Texas for the last 3000 years. Additional studies using XRF-derived element data as a drought proxy are needed to determine the utility of this proxy in non-playa lacustrine systems. © 2016 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59678
Appears in Collections: 过去全球变化的重建
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作者单位: University of California at Santa Barbara, Department of Earth Science, 1006 Webb Hall - MC 9630, Santa Barbara, CA, United States; University of California at San Diego, Scripps Institution of Oceanography, Geological Collections, 2310 Downwind Way, La Jolla, CA, United States; University of California at Irvine, Predictive Analytics Certification Program, UC Irvine Extension, PO Box 6050, Irvine, CA, United States; Department of Physics, East Carolina University, Howell Science Complex C-209, 1000 E 5th St., Greenville, NC, United States
Recommended Citation:
Livsey D.,Simms A.R.,Hangsterfer A.,et al. Drought modulated by North Atlantic sea surface temperatures for the last 3,000 years along the northwestern Gulf of Mexico[J]. Quaternary Science Reviews,2016-01-01,135