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Black carbon (BC) in a northern Tibetan mountain: effect of Kuwait fires on glaciers
Zhou, JM (Zhou, Jiamao)[ 1,2 ]; Tie, XX (Tie, Xuexi)[ 1,3 ]; Xu, BQ (Xu, Baiqing)[ 4 ]; Zhao, SY (Zhao, Shuyu)[ 1 ]; Wang, M (Wang, Mo)[ 4 ]; Li, GH (Li, Guohui)[ 1 ]; Zhang, T (Zhang, Ting)[ 1 ]; Zhao, ZZ (Zhao, Zhuzi)[ 1,5 ]; Liu, SX (Liu, Suixin)[ 1 ]; Yang, S (Yang, Song)[ 4 ]; Chang, LY (Chang, Luyu)[ 6,7 ]; Cao, JJ (Cao, Junji)[ 1 ]
2018-09-27
发表期刊ATMOSPHERIC CHEMISTRY AND
卷号18期号:18页码:13673-13685
文章类型期刊论文
摘要

The black carbon (BC) deposition on the ice core at Muztagh Ata Mountain, northern Tibetan Plateau, was analyzed. Two sets of measurements were used in this study, which included the air samplings of BC particles during 2004–2006 and the ice core drillings of BC deposition during 1986–1994. Two numerical models were used to analyze the measured data. A global chemical transportation model (MOZART-4) was used to analyze the BC transport from the source regions, and a radiative transfer model (SNICAR) was used to study the effect of BC on snow albedo. The results show that during 1991–1992, there was a strong spike in the BC deposition at Muztagh Ata, suggesting that there was an unusual emission in the upward region during this period. This high peak of BC deposition was investigated by using the global chemical transportation model (MOZART-4). The analysis indicated that the emissions from large Kuwait fires at the end of the first Gulf War in 1991 caused this high peak of the BC concentrations and deposition (about 3–4 times higher than other years) at Muztagh Ata Mountain, suggesting that the upward BC emissions had important impacts on this remote site located on the northern Tibetan Plateau. Thus, there is a need to quantitatively estimate the effect of surrounding emissions on the BC concentrations on the northern Tibetan Plateau. In this study, a sensitivity study with four individual BC emission regions (Central Asia, Europe, the Persian Gulf, and South Asia) was conducted by using the MOZART-4 model. The result suggests that during the “normal period” (non-Kuwait fires), the largest effect was due to the Central Asia source (44 %) during the Indian monsoon period, while during the non-monsoon period, the largest effect was due to the South Asia source (34 %). The increase in radiative forcing increase (RFI) due to the deposition of BC on snow was estimated by using the radiative transfer model (SNICAR). The results show that under the fresh snow assumption, the estimated increase in RFI ranged from 0.2 to 2.5 W m−2, while under the aged snow assumption, the estimated increase in RFI ranged from 0.9 to 5.7 W m−2. During the Kuwait fires period, the RFI values increased about 2–5 times higher than in the “normal period”, suggesting a significant increase for the snow melting on the northern Tibetan Plateau due to this fire event. This result suggests that the variability of BC deposition at Muztagh Ata Mountain provides useful information to study the effect of the upward BC emissions on environmental and climate issues in the northern Tibetan Plateau. The radiative effect of BC deposition on the snow melting provides important information regarding the water resources in the region.

DOI10.5194/acp-18-13673-2018
收录类别SCI
语种英语
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/9558
专题粉尘与环境研究室
通讯作者Tie, XX (Tie, Xuexi)[ 1,3 ]; Xu, BQ (Xu, Baiqing)[ 4 ]
作者单位1.KLACP, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China;
2.University of Chinese Academy of Sciences, Beijing 100049, China;
3.Center for Excellence in Urban Atmospheric Environment, Institute of Urban Environment,Chinese Academy of Sciences, Xiamen 361021, China;
4.Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research,Chinese Academy of Sciences, Beijing 100101, China;
5.School of Chemistry & Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, China;
6.Shanghai Meteorological Service, Shanghai 200030, China;
7.Shanghai Key Laboratory of Meteorology and Health, Shanghai 200030, China
推荐引用方式
GB/T 7714
Zhou, JM ,Tie, XX ,Xu, BQ ,et al. Black carbon (BC) in a northern Tibetan mountain: effect of Kuwait fires on glaciers[J]. ATMOSPHERIC CHEMISTRY AND,2018,18(18):13673-13685.
APA Zhou, JM .,Tie, XX .,Xu, BQ .,Zhao, SY .,Wang, M .,...&Cao, JJ .(2018).Black carbon (BC) in a northern Tibetan mountain: effect of Kuwait fires on glaciers.ATMOSPHERIC CHEMISTRY AND,18(18),13673-13685.
MLA Zhou, JM ,et al."Black carbon (BC) in a northern Tibetan mountain: effect of Kuwait fires on glaciers".ATMOSPHERIC CHEMISTRY AND 18.18(2018):13673-13685.
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