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Effect of biomass burning on black carbon (BC) in South Asia and Tibetan Plateau: The analysis of WRF-Chem modeling
Xu, RG (Xu, Ruiguang)[ 1,4,5 ]; Tie, XX (Tie, Xuexi)[ 1,2,3 ]; Li, GH (Li, Guohui)[ 1 ]; Zhao, SY (Zhao, Shuyu)[ 1 ]; Cao, JJ (Cao, Junji)[ 1 ]; Feng, T (Feng, Tian)[ 1 ]; Long, X (Long, Xin)[ 1 ]
2018-10-15
发表期刊Science of the Total Environment
卷号645页码:901-912
文章类型期刊论文
摘要

The focus of this study is to evaluate the impact of biomass burning (BB) from South Asia and Southeast Asia on the glaciers over the Tibetan Plateau. The seasonality and long-term trend of biomass fires measured by Terra and Aqua satellite data from 2010 to 2016 are used in this study. The analysis shows that the biomass burnings were widely dispersed in the continental of Indian and Southeast Asia and existed a strong seasonal variation. The biomass burnings in winter (January) were relatively weak and scattered and were significantly enhanced in spring (April). The highest biomass burnings located in two regions. One was along the foothill of Himalayas, where is a dense population area, and the second located in Southeast Asia. Because these two high biomass burning regions are close to the Tibetan Plateau, they could have important effects on the BC deposition over the glaciers of the Tibetan Plateau. In order to study the effect of BB emissions on the deposition over the glaciers in the Tibetan Plateau, a regional chemical model (WRF-Chem; Weather Research and Forecasting Chemical model) was applied to simulate the BC distributions and the transport from BB emission regions to the glaciers in Tibetan Plateau. The result shows that in winter (January), due to the relatively weak BB emissions, the effect of BB emissions on BC concentrations was not significant. The BC concentrations resulted from BB emissions ranged from 0.1 to 2.0 μg/m3, with high concentrations distributed along the foothill of Himalayas and the southeastern Asia region. Due to the relative low BC concentrations, there was insignificant effect of BB emissions on the deposition over the glaciers in the Tibetan Plateau in winter. However, the BB emissions were highest in spring (April), producing high BC concentrations. For example, along the Himalayas Mountain and in the southeastern Asia region, The BC concentrations ranged from 2.0 to 6.0 μg/m3. In addition to the high BC concentrations, there were also west and south prevailing winds in these regions. As a result, the BC particles were transported to the glaciers in the Tibetan Plateau, causing significant deposition of BC particles on the snow surface of the glaciers. This study suggests that the biomass burning emissions have important effects on the BC deposition over the glaciers in the Tibetan Plateau, and the contaminations of glaciers could have significant impact on the melting of snow in the Tibetan Plateau, causing some severe environmental problems, such as the water resources.

关键词Biomass Burning Glaciers Over Tibetan Plateau Black Carbon Wrf-chem Modeling
DOI10.1016/j.scitotenv.2018.07.165
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/361006/9556
专题粉尘与环境研究室
通讯作者Tie, XX (Tie, Xuexi)[ 1,2,3 ]
作者单位1.State Kay Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China;
2.Center for Excellence in Urban Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China;
3.National Center for Atmospheric Research (NCAR), Boulder, CO 80303, USA;
4.College of Energy and Environmental Engineering, Hebei University of Engineering, Handan 056038, China;
5.Postdoctoral Research Station of Xi'an Chan-Ba Ecological District(CBE) Management Committee, Xi'an 710024, China
推荐引用方式
GB/T 7714
Xu, RG ,Tie, XX ,Li, GH ,et al. Effect of biomass burning on black carbon (BC) in South Asia and Tibetan Plateau: The analysis of WRF-Chem modeling[J]. Science of the Total Environment,2018,645:901-912.
APA Xu, RG .,Tie, XX .,Li, GH .,Zhao, SY .,Cao, JJ .,...&Long, X .(2018).Effect of biomass burning on black carbon (BC) in South Asia and Tibetan Plateau: The analysis of WRF-Chem modeling.Science of the Total Environment,645,901-912.
MLA Xu, RG ,et al."Effect of biomass burning on black carbon (BC) in South Asia and Tibetan Plateau: The analysis of WRF-Chem modeling".Science of the Total Environment 645(2018):901-912.
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