DOI: 10.1016/j.quascirev.2013.03.013
Scopus记录号: 2-s2.0-84877073850
论文题名: Quantitative assessment of glacial fluctuations in the level of Lake Lisan, Dead Sea rift
作者: Rohling E.J.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2013
卷: 70 起始页码: 63
结束页码: 72
语种: 英语
英文关键词: Evaporation
; Lake Lisan
; Precipitation
; Quantitative climate reconstruction
; Wind speed
Scopus关键词: Climate reconstruction
; Climatic informations
; Climatic variation
; Climatological parameters
; Last glacial cycles
; Natural variability
; Quantitative assessments
; Wind speed
; Catchments
; Climate change
; Evaporation
; Glacial geology
; Precipitation (chemical)
; Wind effects
; Lakes
; amplitude
; archaeology
; assessment method
; climate change
; climate variation
; climatology
; glacial environment
; Heinrich event
; hominid
; humid environment
; migration
; paleoclimate
; quantitative analysis
; reconstruction
; wind velocity
; Africa
; Dead Sea Rift
; Europe
英文摘要: A quantitative understanding of climatic variations in the Levant during the last glacial cycle is needed to support archaeologists in assessing the drivers behind hominin migrations and cultural developments in this key region at the intersection between Africa and Europe. It will also foster a better understanding of the region's natural variability as context to projections of modern climate change. Detailed documentation of variations in the level of Lake Lisan - the lake that occupied the Dead Sea rift during the last glacial cycle - provides crucial climatic information for this region. Existing reconstructions suggest that Lake Lisan highstands during cold intervals of the last glacial cycle represent relatively humid conditions in the region, but these interpretations have remained predominantly qualitative. Here, I evaluate realistic ranges of the key climatological parameters that controlled lake level, based on the observed timing and amplitudes of lake-level variability. I infer that a mean precipitation rate over the wider catchment area of about 500mmy-1, as proposed in the literature, would be consistent with observed lake levels if there was a concomitant 15-50% increase in wind speed during cold glacial stadials. This lends quantitative support to previous inferences of a notable increase in the intensity of Mediterranean (winter) storms during glacial periods, which tracked eastward into the Levant. In contrast to highstands during 'regular' stadials, lake level dropped during Heinrich Events. I demonstrate that this likely indicates a further intensification of the winds during those times. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60627
Appears in Collections: 过去全球变化的重建
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作者单位: Research School of Earth Sciences, The Australian National University, Canberra, ACT 0200, Australia; Research School of Earth Sciences, The Australian National University, Canberra, ACT 0200, Australia
Recommended Citation:
Rohling E.J.. Quantitative assessment of glacial fluctuations in the level of Lake Lisan, Dead Sea rift[J]. Quaternary Science Reviews,2013-01-01,70