DOI: 10.1002/2016JD025407
论文题名: A twentieth century major soluble ion record of dust and anthropogenic pollutants from Inilchek Glacier, Tien Shan
作者: Grigholm B. ; Mayewski P.A. ; Aizen V. ; Kreutz K. ; Aizen E. ; Kang S. ; Maasch K.A. ; Sneed S.B.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2017
卷: 122, 期: 3 起始页码: 1884
结束页码: 1900
语种: 英语
英文关键词: climate
; dust
; ice cores
; major soluble ions
; pollution
; Tien Shan
Scopus关键词: anthropogenic effect
; atmospheric pollution
; climate modeling
; dust
; historical record
; ice core
; ionic composition
; paleoenvironment
; twentieth century
; Tien Shan
英文摘要: Using a high-resolution (~18 samples/year) major soluble ion record (Na+, K+, Mg2+, Ca2+, Cl−, NO3 −, and SO4 2−) covering the period 1908–1995 A.D. from the Inilchek Glacier, Tien Shan, Kyrgyzstan, we provide a detailed climate and environmental proxy record for the region. Chemical concentrations, empirical orthogonal function analyses, and noncrustal excess calculations are used to identify natural and potential anthropogenic depositional trends. Dominant dust proxy species (i.e., Ca2+) reveal highest concentrations during the 1950s–1970s, with declining decadal trends through the end of the record. These trends likely reflect decreases in central Asian dust storm activity post-1950, which has been associated with coupled atmospheric circulation variability and anthropogenic activities. Comparison between Ca2+ and ERA-Interim (1979–1995) climate reanalysis data indicates a strong relationship to spring (March–May) geopotential height patterns in northwest China and southern Siberia associated with the Siberian High. Noncrustal contribution (excess) estimates of NO3 −, K+, SO4 2−, and Cl− concentrations suggest discernable anthropogenic inputs began between the 1950s and 1970s, increased into the middle/late 1980s, and declined in the 1990s. Excess trends coincide with Former Soviet Union consumption, production, and emission of fossil fuels and fertilizers, reflecting the rapid growth of agriculture and industry, as well as economic declines in the middle to late 1980s/early 1990s. Excess-Cl− trends reflect timings that coincide with the construction of the Pavlodar Chemical Plant and the military production of Cl2 in Kazakhstan. NOAA Hybrid Single-Particle Lagrangian Integrated Trajectory back trajectory frequency analysis suggests eastern Uzbekistan (e.g., Fergana Valley), Kyrgyzstan, and southern Kazakhstan as the primary pollutant sources to the study region. ©2017. The Authors. 资助项目: AGS-0000561
; AGS-0000561
; AGS-0096323
; AGS-0096323
; ATM-0754644
; ATM-0754644
; DGE-1144423
; DGE-1144423
; P2C2 AGS-1401899
; P2C2 AGS-1401899
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62711
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Climate Change Institute and School of Earth and Climate Sciences, University of Maine, Orono, ME, United States; Department of Geography, University of Idaho, Moscow, ID, United States; State Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Grigholm B.,Mayewski P.A.,Aizen V.,et al. A twentieth century major soluble ion record of dust and anthropogenic pollutants from Inilchek Glacier, Tien Shan[J]. Journal of Geophysical Research: Atmospheres,2017-01-01,122(3)