中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Light-absorbing impurities accelerating glacial melting in southeastern Tibetan Plateau

文献类型:期刊论文

作者Niu, Hewen2,5; Kang, Shichang2,6,9; Wang, Hailong1; Du, Jiankuo7; Pu, Tao2; Zhang, Guotao4; Lu, Xixi3; Yan, Xingguo8; Wang, Shijin2; Shi, Xiaofei8
刊名ENVIRONMENTAL POLLUTION
出版日期2020-02-01
卷号257页码:113541
ISSN号0269-7491
关键词Black carbon Cryospheric environment Snow and ice Radiative forcing Tropospheric aerosols
DOI10.1016/j.envpol.2019.113541
通讯作者Kang, Shichang(shichang.kang@lzb.ac.cn) ; Wang, Hailong(Hailong.Wang@pnnl.gov)
产权排序8
文献子类Article
英文摘要Deposition of light-absorbing particles on glacier surfaces poses a series of adverse impacts on the cryospheric environment, climate and human health. Broad attention of the scientific community has been paid on insoluble light-absorbing impurities (ILAIs) in snow and ice on glaciers over the Tibetan Plateau (TP). However, systematic investigation of ILAIs in snowpack of glaciers on the TP is scarce. In this study, the properties and darkening effect of ILAIs in snowpack on glaciers are extensively investigated in the southeast of TP. Results show that ILAIs concentrations in multiple types of snow and ice samples were significantly different. Snowpit depths varied substantially from one profile to another during May and June 2016. The average concentrations of ILAls in snowpits increase as snow melting progresses. Black carbon (BC) and dust cause snow albedo reduction more in snow with larger grain size Re. Based on a radiative transfer model calculation, the average albedo reduction induced by BC in the snowpack was 0.141 +/- 0.02, and associated daily maximum radiative forcing (RF) was 72.97 +/- 12.7 W m(-2). BC is a controlling light-absorbing factor in snowpack and causes substantial albedo reduction and thus the associated daily maximum RF. The maximum reduction of snow cover duration was 4.56 +/- 0.71 days caused by BC and dust in snowpack in southeastern TP. The average mass absorption cross-section (MAC) of BC from multiple snowpits was 3.26 +/- 0.46 m(2) g(-1), which represents a typical value of MAC in snow on glaciers, but it is type-dependent of snow/ice samples. Tropospheric aerosols vertically extended up to 8 km over the TP and its surrounding areas, which indicates the transport of aerosols from remote sources through elevated pathways. A large amount of carbon stored in the brittle glaciers can be potentially released with meltwater runoff under a warming climate. This study provides a new insight for investigating carbonaceous and light-absorbing particles in glacierization areas. (C) 2019 Elsevier Ltd. All rights reserved.
电子版国际标准刊号1873-6424
WOS关键词BLACK CARBON DEPOSITION ; ORGANIC-CARBON ; POTENTIAL IMPACT ; SNOW ALBEDO ; ATMOSPHERIC CHEMISTRY ; ELEMENTAL CARBON ; CLIMATE ; ICE ; ABSORPTION ; AEROSOLS
资助项目National Natural Science Foundation of China[41971080] ; National Natural Science Foundation of China[41721091] ; National Natural Science Foundation of China[41630754] ; SKLCS[SKLCS-ZZ-2019] ; Key Research Program for Frontier Sciences of Chinese Academy of Sciences[QYZDJ-SSW-DQC039] ; U.S. Department of Energy (DOE), Office of Science, Biological and Environmental Research ; DOE[DE-AC05-76RLO 1830]
WOS研究方向Environmental Sciences & Ecology
语种英语
出版者ELSEVIER SCI LTD
WOS记录号WOS:000514746800052
资助机构National Natural Science Foundation of China ; SKLCS ; Key Research Program for Frontier Sciences of Chinese Academy of Sciences ; U.S. Department of Energy (DOE), Office of Science, Biological and Environmental Research ; DOE
源URL[http://ir.imde.ac.cn/handle/131551/34093]  
专题中国科学院水利部成都山地灾害与环境研究所
通讯作者Kang, Shichang; Wang, Hailong
作者单位1.Pacific Northwest Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA;
2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China;
3.Natl Univ Singapore, Dept Geog, 1 Arts Link, Singapore 117570, Singapore;
4.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610046, Peoples R China;
5.Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA;
6.UCAS, Beijing 10049, Peoples R China;
7.Shaanxi Univ Technol, Sch Hist Culture & Tourism, Hanzhong 723001, Peoples R China;
8.Lanzhou Univ, Coll Earth Environm Sci, Lanzhou 730000, Peoples R China
9.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China;
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GB/T 7714
Niu, Hewen,Kang, Shichang,Wang, Hailong,et al. Light-absorbing impurities accelerating glacial melting in southeastern Tibetan Plateau[J]. ENVIRONMENTAL POLLUTION,2020,257:113541.
APA Niu, Hewen.,Kang, Shichang.,Wang, Hailong.,Du, Jiankuo.,Pu, Tao.,...&Shi, Xiaofei.(2020).Light-absorbing impurities accelerating glacial melting in southeastern Tibetan Plateau.ENVIRONMENTAL POLLUTION,257,113541.
MLA Niu, Hewen,et al."Light-absorbing impurities accelerating glacial melting in southeastern Tibetan Plateau".ENVIRONMENTAL POLLUTION 257(2020):113541.

入库方式: OAI收割

来源:成都山地灾害与环境研究所

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