Resolving the impact of stratosphere-to-troposphere transport on the sulfur cycle and surface ozone over the Tibetan Plateau using a cosmogenic S-35 tracer
Lin, Mang1; Zhang, Zhisheng2; Su, Lin3; Hill-Falkenthal, Jason1; Priyadarshi, Antra1; Zhang, Qianggong4,5; Zhang, Guoshuai4; Kang, Shichang5,6,7; Chan, Chuen-Yu8; Thiemens, Mark H.1
2016-01-16
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
卷号121期号:1页码:439-456
文章类型Article
摘要The Himalayas were recently identified as a global hot spot for deep stratosphere-to-troposphere transport (STT) in spring. Although the STT in this region may play a vital role in tropospheric chemistry, the hydrological cycle and aquatic ecosystems in Asia, there is no direct measurement of a chemical stratospheric tracer to verify and evaluate its possible impacts. Here we use cosmogenic S-35 as a tracer for air masses originating in the stratosphere and transported downward. We measure concentrations of S-35 in fresh surface snow and river runoff samples collected from Mount Everest in April 2013 to be more than 10 times higher than previously reported by any surface measurement, in support of the Himalayas as a gateway of springtime STT. In light of this result, measurements of (SO2)-S-35 and (SO42-)-S-35 at Nam Co in spring 2011 are reanalyzed to investigate the magnitudes of stratospheric air masses from the Himalayas to the tropospheric sulfur cycle and surface O-3 level over the Tibetan Plateau. A simple one-box model reveals that the oxidative lifetime of SO2 is reduced in aged STT plumes. Triple oxygen isotopic measurements of sulfate samples suggest that enhanced O-3 levels may shift the oxidation pathway of SO2 in the troposphere, which may be constrained by further intensive sampling and measurements. Comparison with surface O-3 measurements and traditional meteorological tracing methods shows that S-35 is a potentially unique and sensitive tracer to quantify the contribution of stratospheric air to surface O-3 levels in fresh or aged STT plumes.
关键词Radioactive Sulfur-35 Triple Oxygen Isotopes Stratosphere-troposphere Exchange Himalayas Nam Co Glacier Retreat
WOS标题词Science & Technology ; Physical Sciences
DOI10.1002/2015JD023801
关键词[WOS]DISPERSION MODEL FLEXPART ; SUMMER MONSOON SEASON ; ELEMENTAL COMPOSITION ; ATMOSPHERIC SULFATE ; DOWNWARD TRANSPORT ; MINERAL DUST ; BLACK-CARBON ; AIR-QUALITY ; SOUTH-ASIA ; NAM CO
收录类别SCI
语种英语
WOS研究方向Meteorology & Atmospheric Sciences
WOS类目Meteorology & Atmospheric Sciences
WOS记录号WOS:000369845300027
引用统计
被引频次:30[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5821
专题黄土与第四纪地质国家重点实验室(2010~)
作者单位1.Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA
2.South China Inst Environm Sci, Minist Environm Protect, Guangzhou, Guangdong, Peoples R China
3.Hong Kong Univ Sci & Technol, Sch Sci, Environm Sci Programs, Hong Kong, Hong Kong, Peoples R China
4.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China
5.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
6.Chinese Acad Sci, State Key Lab Cryospher Sci Cold & Arid Reg Envir, Lanzhou, Peoples R China
7.Chinese Acad Sci, Engn Res Inst, Lanzhou, Peoples R China
8.Chinese Acad Sci, Inst Earth Environm, Xian, Peoples R China
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Lin, Mang,Zhang, Zhisheng,Su, Lin,et al. Resolving the impact of stratosphere-to-troposphere transport on the sulfur cycle and surface ozone over the Tibetan Plateau using a cosmogenic S-35 tracer[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2016,121(1):439-456.
APA Lin, Mang.,Zhang, Zhisheng.,Su, Lin.,Hill-Falkenthal, Jason.,Priyadarshi, Antra.,...&Thiemens, Mark H..(2016).Resolving the impact of stratosphere-to-troposphere transport on the sulfur cycle and surface ozone over the Tibetan Plateau using a cosmogenic S-35 tracer.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,121(1),439-456.
MLA Lin, Mang,et al."Resolving the impact of stratosphere-to-troposphere transport on the sulfur cycle and surface ozone over the Tibetan Plateau using a cosmogenic S-35 tracer".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 121.1(2016):439-456.
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