Composition and mixing states of brown haze particle over the Himalayas along two transboundary south-north transects
文献类型：期刊论文
| 作者 | Dong, ZW (Dong, Zhiwen)1; Kang, SC (Kang, Shichang)1,2; Guo, JM (Guo, Junming)1; Zhang, QG (Zhang, Qianggong)2,3; Wang, XJ (Wang, Xuejia)1; Qin, DH (Qin, Dahe)1; Kang, SC; Dong, ZW |
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 出版日期 | 2017 |
| 卷号 | 156期号:0页码:24-35 |
| 关键词 | TIBETAN PLATEAU BLACK CARBON AEROSOL-PARTICLES INDIAN HIMALAYA NORTHWESTERN HIMALAYA BACKGROUND AEROSOL HYDROLOGICAL CYCLE OPTICAL-PROPERTIES MONSOON CLIMATE ALPINE GLACIERS |
| DOI | 10.1016/j.atmosenv.2017.02.029 |
| 文献子类 | Article |
| 英文摘要 | Pollutants that are usually transported from southern Asia to the Tibetan Plateau deposit on the Plateau surface, change snow albedo and thereby surface radiative flux. This results numerous climatic implications like as erratic monsoon, perturbation in hydrological cycle, etc. However, the accurate estimation of these climatic implications is not well understood, because the atmospheric pollution is a heterogeneous mixture of various particle types. Therefore, this part of climate research requires a detailed investigation of physical and chemical properties of atmospheric pollutants. This study aimed to examine the physical and chemical properties of atmospheric pollutants across the Himalayan regions along two transboundary south-north transects. The information of individual-particles was obtained using microscopy-based techniques that comprises transmission electron microscope (TEM) and Energy-dispersive X-ray spectrometer (EDX). Study capture the signatures of various types of atmospheric species such as black carbon (BC), mineral dust, fly ash, organic matter, sulfate, nitrite, ammonium, and NaCI. Microscopy-based techniques confirm that these particles were generally in mixing state, for example salt-coated particles accounting for 25-56% of the total particles in sampled locations. Our analysis shows that urban and rural locations are characterized with atmospheric particles which sourced from anthropogenic activities, whereas remote locations with those released from natural crustal. However, the relative contributions of anthropogenic particles were higher than that of particles released from natural crustal. The presence of such particles over remote locations of Himalayan region provides an evidence of prevailing atmospheric transport processes, which further need to be well understood. It is expected that this work would be helpful in understanding the regional atmospheric conditions and the transboundary transport process of haze particles. As these informations are of great importance in modeling studies, which further lead to improve understanding of haze particles climate effects. (C) 2017 Elsevier Ltd. All rights reserved. |
| 学科主题 | 自然地理学 |
| WOS研究方向 | Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000399628900003 |
| 源URL | [http://ir.itpcas.ac.cn/handle/131C11/8255]  |
| 专题 | 青藏高原研究所_图书馆 |
| 通讯作者 | Kang, SC; Dong, ZW |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Cryosphere Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China. 2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China. 3.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Dong, ZW ,Kang, SC ,Guo, JM ,et al. Composition and mixing states of brown haze particle over the Himalayas along two transboundary south-north transects[J]. ATMOSPHERIC ENVIRONMENT,2017,156(0):24-35. |
| APA | Dong, ZW .,Kang, SC .,Guo, JM .,Zhang, QG .,Wang, XJ .,...&Dong, ZW.(2017).Composition and mixing states of brown haze particle over the Himalayas along two transboundary south-north transects.ATMOSPHERIC ENVIRONMENT,156(0),24-35. |
| MLA | Dong, ZW ,et al."Composition and mixing states of brown haze particle over the Himalayas along two transboundary south-north transects".ATMOSPHERIC ENVIRONMENT 156.0(2017):24-35. |
入库方式： OAI收割
来源：青藏高原研究所
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