Black carbon in a glacier and snow cover on the northeastern Tibetan Plateau: Concentrations, radiative forcing and potential source from local topsoil | |
Li, Y (Li, Yang)1,3,5; Kang, SC (Kang, Shichang)2,4,5; Chen, JZ (Chen, Jizu)2; Hu, ZF (Hu, Zhaofu)2; Wang, K (Wang, Kun)2; Paudyal, R (Paudyal, Rukumesh)2; Liu, JS (Liu, Jingshi)1; Wang, XX (Wang, Xiaoxiang)2; Qin, X (Qin, Xiang)2; Sillanpaa, M (Sillanpaa, Mika)3 | |
Source Publication | SCIENCE OF THE TOTAL ENVIRONMENT
![]() |
2019 | |
Volume | 686Issue:0Pages:1030-1038 |
DOI | 10.1016/j.scitotenv.2019.05.469 |
Abstract | Black carbon (BC), which consists of the strongest light-absorbing particles (LAP) in snow/ice, has been regarded as a potential factor accelerating the melting of glaciers and snow cover over the Third Pole. During the winter and summer of 2016, snow, ice and topsoil were sampled from the Laohugou basin located on the northeastern Tibetan Plateau. Concentrations of BC in Laohugou Glacier No. 12 (LG12) and snow cover in this basin (LSC) varied broadly (21.7-2700.1 and 89.6 to 6326.2 ng g(-1), respectively), indicating large spatiotemporal variability in wet, dry and post depositional conditions. Further, internally mixed BC in snow grains enhanced the albedo reduction (15.0-26.3%) more than externally mixed BC in LG12 and LSC. Dust played a more important role than BC in accelerating the melting of LG12, whereas these components played comparable roles in accelerating the melting of CSC. In total, externally mixed BC and dust reduced the albedo by 0.075-0.423, with an associated mean radiative forcing (RF) of 97.5 +/- 41.5 Wm(-2) in LSC. This level was lower than those in the ablation zone 354.1 +/- 81.2 Wm(-2)) and accumulation zone (145.6 +/- 76.7 Wm(-2)) of LG12 because of discrepancies in LAP concentrations, solar zenith angles and incoming shortwave radiation. Furthermore, we observed that topsoil containing abundant BC was transported along the slope from the debris to the LG12 surface ice, and topsoil in this region could be lifted by strong mountain-valley winds and then deposited on snow/ice surfaces, which affected the LAP concentrations. Therefore, this study is important for understanding the role of BC and dust in the melting of snow/ice in the northeastern Tibetan Plateau. (C) 2019 Elsevier B.V. All rights reserved. |
Subject Area | Environmental Sciences |
WOS ID | WOS:000479029700092 |
Language | 英语 |
Indexed By | SCI |
Keyword | Light-absorbing Impurities Elemental Carbon Albedo Reduction Iron-oxides Mt. Yulong Ice Absorption Dust Impacts Aerosol |
WOS Research Area | Environmental Sciences |
WOS Subject | Environmental Sciences & Ecology |
Cooperation Status | 国际 |
ISSN | 0048-9697 |
Department | 环境变化与地表过程重点实验室 |
URL | 查看原文 |
Publisher | ELSEVIER |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.itpcas.ac.cn/handle/131C11/9128 |
Collection | 图书馆 |
Corresponding Author | Li, Y (Li, Yang); Kang, SC (Kang, Shichang) |
Affiliation | 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China; 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Gansu, Peoples R China; 3.Lappeertranta Univ Technol, Lab Green Chem, Mikkeli 50130, Finland; 4.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100085, Peoples R China; 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China. |
Recommended Citation GB/T 7714 | Li, Y ,Kang, SC ,Chen, JZ ,et al. Black carbon in a glacier and snow cover on the northeastern Tibetan Plateau: Concentrations, radiative forcing and potential source from local topsoil[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,686(0):1030-1038. |
APA | Li, Y .,Kang, SC .,Chen, JZ .,Hu, ZF .,Wang, K .,...&Sillanpaa, M .(2019).Black carbon in a glacier and snow cover on the northeastern Tibetan Plateau: Concentrations, radiative forcing and potential source from local topsoil.SCIENCE OF THE TOTAL ENVIRONMENT,686(0),1030-1038. |
MLA | Li, Y ,et al."Black carbon in a glacier and snow cover on the northeastern Tibetan Plateau: Concentrations, radiative forcing and potential source from local topsoil".SCIENCE OF THE TOTAL ENVIRONMENT 686.0(2019):1030-1038. |
Files in This Item: | ||||||
File Name/Size | DocType | Version | Access | License | ||
2019093.pdf(3116KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment