Variability in individual particle structure and mixing states between the glacier-snowpack and atmosphere in the northeastern Tibetan Plateau
文献类型：期刊论文
| 作者 | Dong, Zhiwen1,2; Kang, Shichang1,3; Qin, Dahe1; Shao, Yaping2; Ulbrich, Sven2; Qin, Xiang1,4 |
| 刊名 | CRYOSPHERE
 |
| 出版日期 | 2018-12-13 |
| 卷号 | 12期号:12页码:3877-3890 |
| ISSN号 | 1994-0416 |
| DOI | 10.5194/tc-12-3877-2018 |
| 通讯作者 | Dong, Zhiwen(dongzhiwen@lzb.ac.cn) ; Kang, Shichang(shichang.kang@lzb.ac.cn) |
| 英文摘要 | Aerosols affect the Earth's temperature and climate by altering the radiative properties of the atmosphere. Changes in the composition, morphological structure, and mixing state of aerosol components will cause significant changes in radiative forcing in the atmosphere. This work focused on the physicochemical properties of light-absorbing particles (LAPs) and their variability through deposition process from the atmosphere to the glacier-snowpack interface based on large-range observations in the northeastern Tibetan Plateau, and laboratory transmission electron microscope (TEM) and energy dispersive X-ray spectrometer (EDX) measurements. The results showed that LAP particle structures changed markedly in the snowpack compared to those in the atmosphere due to black carbon (BC) and organic matter (OM) particle aging and salt-coating condition changes. Considerably more aged BC and OM particles were observed in the glacier and snowpack surfaces than in the atmosphere, as the concentration of aged BC and OM varied in all locations by 4 %-16% and 12 %-25% in the atmosphere, whereas they varied by 25 %-36% and 36 %-48% in the glacier-snowpack surface. Similarly, the salt-coated particle ratio of LAPs in the snowpack is lower than in the atmosphere. Albedo change contribution in the Miaoergou, Yuzhufeng, and Qiyi glaciers is evaluated using the SNICAR model for glacier surface-distributed impurities. Due to the salt-coating state change, the snow albedo decreased by 16.7 %-33.9% compared to that in the atmosphere. Such a great change may cause more strongly enhanced radiative heating than previously thought, suggesting that the warming effect from particle structure and mixing change in glacier-snowpack LAPs may have markedly affected the climate on a global scale in terms of direct forcing in the cryosphere. |
| 收录类别 | SCI |
| WOS关键词 | LIGHT-ABSORBING IMPURITIES ; DISSOLVED ORGANIC-CARBON ; BLACK CARBON ; DUST ; ABSORPTION ; AEROSOLS ; ALBEDO ; ICE |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | COPERNICUS GESELLSCHAFT MBH |
| WOS记录号 | WOS:000453078800001 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558226 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Dong, Zhiwen; Kang, Shichang |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryosphere Sci, Lanzhou 730000, Gansu, Peoples R China 2.Univ Cologne, Inst Geophys & Meteorol, D-50923 Cologne, Germany 3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 4.Chinese Acad Sci, Qilian Shan Stn Glaciol & Ecol Environm, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, Zhiwen,Kang, Shichang,Qin, Dahe,et al. Variability in individual particle structure and mixing states between the glacier-snowpack and atmosphere in the northeastern Tibetan Plateau[J]. CRYOSPHERE,2018,12(12):3877-3890. |
| APA | Dong, Zhiwen,Kang, Shichang,Qin, Dahe,Shao, Yaping,Ulbrich, Sven,&Qin, Xiang.(2018).Variability in individual particle structure and mixing states between the glacier-snowpack and atmosphere in the northeastern Tibetan Plateau.CRYOSPHERE,12(12),3877-3890. |
| MLA | Dong, Zhiwen,et al."Variability in individual particle structure and mixing states between the glacier-snowpack and atmosphere in the northeastern Tibetan Plateau".CRYOSPHERE 12.12(2018):3877-3890. |
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来源：寒区旱区环境与工程研究所
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