DOI: 10.1016/j.quascirev.2017.03.028
Scopus记录号: 2-s2.0-85017346414
论文题名: Speleothem records of glacial/interglacial climate from Iran forewarn of future Water Availability in the interior of the Middle East
作者: Mehterian S. ; Pourmand A. ; Sharifi A. ; Lahijani H.A.K. ; Naderi M. ; Swart P.K.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2017
卷: 164 起始页码: 187
结束页码: 198
语种: 英语
Scopus关键词: Caves
; Climate change
; Fighter aircraft
; Incident solar radiation
; Isotopes
; Solar radiation
; Climate reconstruction
; Climate variability
; Last interglacial
; Marine isotope stages
; Mediterranean storms
; Orbital configuration
; Water availability
; Winter precipitation
; Glacial geology
英文摘要: This study presents the first absolute-dated record of climate variability constructed by oxygen isotopes (δ18Oc) from stalagmites in the interior of West Asia (Middle East) that encompass the Last Interglacial and early glacial periods (73,000–127,000 Before Present, BP) and early Holocene (6500–7500 BP). Variations in δ18Oc of two stalagmites from Qal'e Kord (QK) cave in central NW Iran show significant agreement and follow the solar insolation curve at 30°N closely, indicating the fidelity of these records as climate signals. The stalagmites capture millennial-scale Dansgaard/Oeschger stadial and interstadial events (19–25) observed in the North Greenland Ice Core Project (NGRIP). These observations point to the presence of a strong atmospheric teleconnection between the north Atlantic climate and the Middle East region. Variations in δ18Oc from QK cave also agree with the main features of Marine Isotope Stage 5 (MIS5), climate reconstructions from Soreq Cave, Israel, and Sanbao Cave in East Asia. This suggests propagation of a pan-Eurasian climate signal via interplay between changes in solar insolation, strength and position of the mid-latitude Westerly Jet, and strength of the Asian Monsoon. More negative δ18Oc from QK stalagmites are representative of wetter conditions when JJA insolation is at maximum, supporting a hypothesis that winter precipitation should increase in the Mediterranean storm tracks over the interior of West Asia when seasonality is at maximum. This record of water availability from central NW Iran across past glacial cycles suggests precipitation increased with higher solar insolation, an orbital configuration that will not return for another 10,000 years. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59238
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Marine Geosciences, Rosenstiel School for Marine and Atmospheric Science (RSMAS), University of Miami, 4600 Rickenbacker Causeway, Miami, FL, United States; Iranian National Institute for Oceanography and Atmospheric Science (INIOAS), Marine Geology Division, Tehran, Iran
Recommended Citation:
Mehterian S.,Pourmand A.,Sharifi A.,et al. Speleothem records of glacial/interglacial climate from Iran forewarn of future Water Availability in the interior of the Middle East[J]. Quaternary Science Reviews,2017-01-01,164