DOI: 10.5194/cp-13-73-2017
Scopus记录号: 2-s2.0-85009986008
论文题名: High-amplitude lake-level changes in tectonically active Lake Issyk-Kul (Kyrgyzstan) revealed by high-resolution seismic reflection data
作者: Catalina Gebhardt A. ; Naudts L. ; De Mol L. ; Klerkx J. ; Abdrakhmatov K. ; Sobel E.R. ; De Batist M.
刊名: Climate of the Past
ISSN: 18149324
出版年: 2017
卷: 13, 期: 1 起始页码: 73
结束页码: 92
语种: 英语
Scopus关键词: air mass
; atmospheric circulation
; paleoclimate
; seismic data
; seismic reflection
; steppe
; tectonic evolution
; water level
; westerly
; Kyrgyzstan
; Lake Ysyk-Kol
; Ysyk-Kol
英文摘要: A total of 84 seismic profiles, mainly from the western and eastern deltas of Lake Issyk-Kul, were used to identify lake-level changes. Seven stratigraphic sequences were reconstructed, each containing a series of delta lobes that were formed during former lake-level stillstands or during slow lake-level increase or decrease. The lake level has experienced at least four cycles of stepwise rise and fall of 400 m or more. These fluctuations were mainly caused by past changes in the atmospheric circulation pattern. During periods of low lake levels, the Siberian High was likely to be strong, bringing dry air masses from the Mongolian steppe blocking the midlatitude Westerlies. During periods of high lake levels, the Siberian High must have been weaker or displaced, and the midlatitude Westerlies could bring moister air masses from the Mediterranean and North Atlantic regions. © 2017 Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/48945
Appears in Collections: 气候变化与战略
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Recommended Citation:
Catalina Gebhardt A.,Naudts L.,De Mol L.,et al. High-amplitude lake-level changes in tectonically active Lake Issyk-Kul (Kyrgyzstan) revealed by high-resolution seismic reflection data[J]. Climate of the Past,2017-01-01,13(1)