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学科主题: 地理学::自然地理学
题名: Surface ozone at Nam Co in the inland Tibetan Plateau: variation, synthesis comparison and regional representativeness
作者: Yin, XF (Yin, Xiufeng)1, 2, 3; Kang, SC (Kang, Shichang)1, 3, 4; de Foy, B (de Foy, Benjamin)5; Cong, ZY (Cong, Zhiyuan)2, 4; Luo, JL (Luo, Jiali)6; Zhang, L (Zhang, Lang)2; Ma, YM (Ma, Yaoming)2, 3, 4; Zhang, GS (Zhang, Guoshuai)2; Rupakheti, D (Rupakheti, Dipesh)2, 3; Zhang, QG (Zhang, Qianggong)2, 4
关键词: 5079 M A.S.L. ; LONG-TERM TRENDS ; PYRAMID NCO-P ; TROPOSPHERIC OZONE ; CARBON-MONOXIDE ; NITROGEN-OXIDES ; WET DEPOSITION ; AIR-POLLUTION ; NATIONAL-PARK ; BLACK CARBON
刊名: ATMOSPHERIC CHEMISTRY AND PHYSICS
发表日期: 2017
DOI: 10.5194/acp-17-11293-2017
卷: 17, 期:18, 页:11293-11311
收录类别: SCI
合作性质: 国际
文章类型: Article
类目[WOS]: Meteorology & Atmospheric Sciences
研究领域[WOS]: Meteorology & Atmospheric Sciences
英文摘要: Ozone is an important pollutant and greenhouse gas, and tropospheric ozone variations are generally associated with both natural and anthropogenic processes. As one of the most pristine and inaccessible regions in the world, the Tibetan Plateau has been considered as an ideal region for studying processes of the background atmosphere. Due to the vast area of the Tibetan Plateau, sites in the southern, northern and central regions exhibit different patterns of variation in surface ozone. Here, we present continuous measurements of surface ozone mixing ratios at Nam Co Station over a period of similar to 5 years (January 2011 to October 2015), which is a background site in the inland Tibetan Plateau. An average surface ozone mixing ratio of 47.6 +/- 11.6 ppb (mean +/- standard deviation) was recorded, and a large annual cycle was observed with maximum ozone mixing ratios in the spring and minimum ratios during the winter. The diurnal cycle is characterized by a minimum in the early morning and a maximum in the late afternoon. Nam Co Station represents a background region where surface ozone receives negligible local anthropogenic emissions inputs, and the anthropogenic contribution from South Asia in spring and China in summer may affect Nam Co Station occasionally. Surface ozone at Nam Co Station is mainly dominated by natural processes involving photochemical reactions, vertical mixing and downward transport of stratospheric air mass. Model results indicate that the study site is affected differently by the surrounding areas in different seasons: air masses from the southern Tibetan Plateau contribute to the high ozone levels in the spring, and enhanced ozone levels in the summer are associated with air masses from the northern Tibetan Plateau. By comparing measurements at Nam Co Station with those from other sites on the Tibetan Plateau, we aim to expand the understanding of ozone cycles and transport processes over the Tibetan Plateau. This work may provide a reference for future model simulations.
语种: 英语
WOS记录号: WOS:000411585900003
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7988
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Gansu, Peoples R China.
2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China.
3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China.
4.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100085, Peoples R China.
5.St Louis Univ, Dept Earth & Atmospher Sci, St Louis, MO 63108 USA.
6.Educ, Key Lab Semiarid Climate Change, Lanzhou 730000, Gansu, Peoples R China.

Recommended Citation:
Yin, XF ,Kang, SC ,de Foy, B ,et al. Surface ozone at Nam Co in the inland Tibetan Plateau: variation, synthesis comparison and regional representativeness[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(18):11293-11311.
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