Light-absorbing impurities in a southern Tibetan Plateau glacier: Variations and potential impact on snow albedo and radiative forcing
文献类型：期刊论文
| 作者 | Li, XF (Li, Xiaofei)1,2; Kang, SC (Kang, Shichang)1,2,3; Zhang, GS (Zhang, Guoshuai)4; Qu, B (Qu, Bin)5; Tripathee, L (Tripathee, Lekhendra)1,6; Paudyal, R (Paudyal, Rukumesh)1,2,6; Jing, ZF (Jing, Zhefan)1; Zhang, YL (Zhang, Yulan)1; Yan, FP (Yan, Fangping)5; Li, G (Li, Gang)7 |
| 刊名 | ATMOSPHERIC RESEARCH
 |
| 出版日期 | 2018-02-01 |
| 卷号 | 200期号:0页码:77-87 |
| 关键词 | NAM CO REGION BLACK-CARBON ZHADANG GLACIER ICE CORE MASS-BALANCE ATMOSPHERIC CIRCULATION IONIC CONCENTRATIONS ORGANIC-CARBON NO. 1 CHINA |
| ISSN号 | 0169-8095 |
| DOI | 10.1016/j.atmosres.2017.10.002 |
| 英文摘要 | Light-absorbing impurities (LAIs), such as organic carbon (OC), black carbon (BC), and mineral dust (MD), deposited on the surface snow of glacier can reduce the surface albedo. As there exists insufficient knowledge to completely characterize LAIs variations and difference in LAIs distributions, it is essential to investigate the behaviors of LAIs and their influence on the glaciers across the Tibetan Plateau (TP). Therefore, surface snow and snowpit samples were collected during September 2014 to September 2015 from Zhadang (ZD) glacier in the southern TP to investigate the role of LAIs in the glacier. LAIs concentrations were observed to be higher in surface aged snow than in the fresh snow possibly due to post-depositional processes such as melting or sublimation. The LAIs concentrations showed a significant spatial distribution and marked negative relationship with elevation. Impurity concentrations varied significantly with depth in the vertical profile of the snowpit, with maximum LAIs concentrations frequently occurred in the distinct dust layers which were deposited in non monsoon, and the bottom of snowpit due to the eluviation in monsoon. Major ions in snowpit and backward trajectory analysis indicated that regional activities and South Asian emissions were the major sources. According to the SNow ICe Aerosol Radiative (SNICAR) model, the average simulated albedo caused by MD and BC in aged snow collected on 31 May 2015 accounts for about 13% +/- 3% and 46% +/- 2% of the albedo reduction. Furthermore, we also found that instantaneous RF caused by MD and BC in aged snow collected on 31 May 2015 varied between 4-16 W m(-2) and 7-64 W m(-2), respectively. The effect of BC exceeds that of MD on albedo reduction and instantaneous RF in the study area, indicating that BC played a major role on the surface of the ZD glacier. |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000416394400007 |
| 出版者 | ELSEVIER SCIENCE INC |
| 源URL | [http://ir.itpcas.ac.cn/handle/131C11/8753]  |
| 专题 | 青藏高原研究所_图书馆 |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Gansu, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China; 4.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China; 5.Lappeenranta Univ Technol, Lab Green Chem, Sammonkatu 12, FIN-50130 Mikkeli, Finland; 6.HERI, Kathmandu, Nepal; 7.China Meteorol Adm, Inst Arid Meteorol, Key Lab Arid Climat Change & Disaster Reducing Ga, Lanzhou 730020, Gansu, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Li, XF ,Kang, SC ,Zhang, GS ,et al. Light-absorbing impurities in a southern Tibetan Plateau glacier: Variations and potential impact on snow albedo and radiative forcing[J]. ATMOSPHERIC RESEARCH,2018,200(0):77-87. |
| APA | Li, XF .,Kang, SC .,Zhang, GS .,Qu, B .,Tripathee, L .,...&Li, CL .(2018).Light-absorbing impurities in a southern Tibetan Plateau glacier: Variations and potential impact on snow albedo and radiative forcing.ATMOSPHERIC RESEARCH,200(0),77-87. |
| MLA | Li, XF ,et al."Light-absorbing impurities in a southern Tibetan Plateau glacier: Variations and potential impact on snow albedo and radiative forcing".ATMOSPHERIC RESEARCH 200.0(2018):77-87. |
入库方式： OAI收割
来源：青藏高原研究所
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