| 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, M (Lin, Mang)1; Zhang, ZS (Zhang, Zhisheng)2; Su, L (Su, Lin)3; Hill-Falkenthal, J (Hill-Falkenthal, Jason)1; Priyadarshi, A (Priyadarshi, Antra)1; Zhang, QG (Zhang, Qianggong)4,5; Zhang, GS (Zhang, Guoshuai)4; Kang, SC (Kang, Shichang)5,6,7; Chan, CY (Chan, Chuen-Yu)8; Thiemens, MH (Thiemens, Mark H.)1; Thiemens, MH; Kang, SC; Chan, CY | |
| Source Publication | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
 |
| 2016 | |
| Volume | 121Issue:1Pages:439-456 |
| DOI | 10.1002/2015JD023801 |
| Abstract | 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. |
| Subject Area | 自然地理学 |
| WOS ID | WOS:000369845300027 |
| Language | 英语 |
| Indexed By | SCI |
| Keyword | Dispersion Model Flexpart Summer Monsoon Season Elemental Composition Atmospheric Sulfate Downward Transport Mineral Dust Black-carbon Air-quality South-asia Nam Co |
| Cooperation Status | 国际 |
| Department | 环境 |
| Subtype | Article |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itpcas.ac.cn/handle/131C11/7779 |
| Collection | 图书馆 |
| Corresponding Author | Thiemens, MH; Kang, SC; Chan, CY |
| Affiliation | 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 |
| Recommended Citation GB/T 7714 | Lin, M ,Zhang, ZS ,Su, L ,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, M .,Zhang, ZS .,Su, L .,Hill-Falkenthal, J .,Priyadarshi, A .,...&Chan, CY.(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, M ,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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| V.121(1) 439-456 201（3591KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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