中国科学院青藏高原研究所机构知识库
Advanced  
ITPCAS OpenIR  > 图书馆  > 期刊论文
学科主题: 地理学::自然地理学
题名: Re-evaluating black carbon in the Himalayas and the Tibetan Plateau: concentrations and deposition
作者: Li, CL (Li, Chaoliu)1, 3, 4; Yan, FP (Yan, Fangping)3; Kang, SC (Kang, Shichang)2, 4; Chen, PF (Chen, Pengfei)2; Han, XW (Han, Xiaowen)1, 5; Hu, ZF (Hu, Zhaofu)2, 5; Zhang, GS (Zhang, Guoshuai)1; Hong, Y (Hong, Ye)6; Gao, SP (Gao, Shaopeng)1; Qu, B (Qu, Bin)3; Zhu, ZJ (Zhu, Zhejing)7; Li, JW (Li, Jiwei)7; Chen, B (Chen, Bing); Sillanpaa, M (Sillanpaa, Mika)3, 8
通讯作者: Li, CL
关键词: LIGHT-ABSORBING IMPURITIES ; NAM-CO BASIN ; P 5079 M ; ELEMENTAL CARBON ; LAKE-SEDIMENTS ; ABSORPTION CHARACTERISTICS ; CHEMICAL CHARACTERISTICS ; CONTINENTAL-SHELF ; SOURCE REGIONS ; AEROSOL MASS
刊名: ATMOSPHERIC CHEMISTRY AND PHYSICS
发表日期: 2017
DOI: 10.5194/acp-17-11899-2017
卷: 17, 期:19, 页:11899-11912
收录类别: SCI
合作性质: 国际
文章类型: Article
类目[WOS]: Meteorology & Atmospheric Sciences
研究领域[WOS]: Meteorology & Atmospheric Sciences
英文摘要: Black carbon (BC) is the second most important warming component in the atmosphere after CO2. The BC in the Himalayas and the Tibetan Plateau (HTP) has influenced the Indian monsoon and accelerated the retreat of glaciers, resulting in serious consequences for billions of Asian residents. Although a number of related studies have been conducted in this region, the BC concentrations and deposition rates remain poorly constrained. Because of the presence of arid environments and the potential influence of carbonates in mineral dust (MD), the reported BC concentrations in the HTP are overestimated. In addition, large discrepancies have been reported among the BC deposition derived from lake cores, ice cores, snow pits and models. Therefore, the actual BC concentration and deposition values in this sensitive region must be determined. A comparison between the BC concentrations in acid (HCl)-treated and untreated total suspected particle samples from the HTP showed that the BC concentrations previously reported for the Nam Co station (central part of the HTP) and the Everest station (northern slope of the central Himalayas) were overestimated by approximately 52 +/- 35 and 39 +/- 24 %, respectively, because of the influence of carbonates in MD. Additionally, the organic carbon (OC) levels were overestimated by approxi-mately 22 +/- 10 and 22 +/- 12% for the same reason. Based on previously reported values from the study region, we propose that the actual BC concentrations at the Nam Co and Everest stations are 61 and 154 ngm 3, respectively. Furthermore, a comprehensive comparison of the BC deposition rates obtained via different methods indicated that the deposition of BC in HTP lake cores was mainly related to river sediment transport from the lake basin as a result of climate change (e.g., increases in temperature and precipitation) and that relatively little BC deposition occurred via atmospheric deposition. Therefore, previously reported BC deposition rates from lake cores overestimated the atmospheric deposition of BC in the HTP. Correspondingly, BC deposition derived from snow pits and ice cores agreed well with that derived from models, implying that the BC depositions of these two methods reflect the actual values in the HTP. Therefore, based on reported values from snow pits and ice cores, we propose that the BC deposition in the HTP is 17 : 9 +/- 5 : 3 mgm(-2) a(-1), with higher and lower values appearing along the fringes and central areas of the HTP, respectively. These adjusted BC concentrations and deposition values in the HTP are critical for performing accurate evaluations of other BC factors, such as atmospheric distribution, radiative forcing and chemical transport in the HTP.
语种: 英语
WOS记录号: WOS:000412582100001
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7965
Appears in Collections:图书馆_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
V.17(19) 11899-11912 2017.pdf(7117KB)期刊论文作者接受稿开放获取View 联系获取全文

作者单位: 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.Lappeenranta Univ Technol, Lab Green Chem, Sammonkatu 12, Mikkeli 50130, Finland.
4.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China.
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
6.China Meteorol Adm, Inst Atmospher Environm, Shenyang 110166, Liaoning, Peoples R China.
7.Shandong Univ, Environm Res Inst, Jinan 250100, Shandong, Peoples R China.
8.Florida Int Univ, Dept Civil & Environm Engn, Miami, FL 33174 USA

Recommended Citation:
Li, CL ,Yan, FP ,Kang, SC ,et al. Re-evaluating black carbon in the Himalayas and the Tibetan Plateau: concentrations and deposition[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(19):11899-11912.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Li, CL (Li, Chaoliu)]'s Articles
[Yan, FP (Yan, Fangping)]'s Articles
[Kang, SC (Kang, Shichang)]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Li, CL (Li, Chaoliu)]‘s Articles
[Yan, FP (Yan, Fangping)]‘s Articles
[Kang, SC (Kang, Shichang)]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: V.17(19) 11899-11912 2017.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院青藏高原研究所 - Feedback
Powered by CSpace