Arid
DOI10.5194/acp-14-4369-2014
Aerosol variability and atmospheric transport in the Himalayan region from CALIOP 2007-2010 observations
Bucci, S.1,2; Cagnazzo, C.1; Cairo, F.1; Di Liberto, L.1; Fierli, F.1
通讯作者Fierli, F.
来源期刊ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN1680-7316
EISSN1680-7324
出版年2014
卷号14期号:9页码:4369-4381
英文摘要

This work quantifies the spatial distribution of different aerosol types, their seasonal variability and sources. The analysis of four years of CALIOP (Cloud-Aerosol LIdar with Orthogonal Polarization) vertically resolved aerosol data allows the identification of spatial patterns of desert dust and carbonaceous particles in different atmospheric layers. Clusters of Lagrangian back trajectories highlight the transport pathways from source regions during the dusty spring season. The analysis shows a prevalence of dust; at low heights it occurs frequently (up to 70% of available observations) and is distributed north of the Tibetan Plateau with a main contribution from the Gobi and Taklamakan deserts, and west of the Tibetan Plateau, originating from the deserts of southwest Asia and advected by the Westerlies. Above the Himalayas the dust amount is minor but still not negligible (occurrence around 20 %) and mainly affected by the transport from more distant deserts sources (Sahara and Arabian Peninsula). Carbonaceous aerosol, produced mainly in northern India and eastern China, is subject to shorter-range transport and is indeed observed closer to the sources, while there is a limited amount reaching the top of the plateau. Data analysis reveals a clear seasonal variability in the frequencies of occurrence for the main aerosol types; dust is regulated principally by the monsoon dynamics, with maximal occurrence in spring. We also highlight relevant interannual differences, showing a larger presence of aerosol in the region during 2007 and 2008. The characterization of the aerosol spatial and temporal distribution in terms of observational frequency is a key piece of information that can be directly used for the evaluation of global aerosol models.


类型Article
语种英语
国家Italy
收录类别SCI-E
WOS记录号WOS:000336739700001
WOS关键词BIOMASS BURNING EMISSIONS ; OPTICAL DEPTH ; CLIMATE ; CLOUDS ; ASIA
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/180904
作者单位1.CNR, ISAC, Inst Atmospher Sci & Climate, Rome, Italy;
2.Univ Ferrara, Dept Phys, I-44100 Ferrara, Italy
推荐引用方式
GB/T 7714
Bucci, S.,Cagnazzo, C.,Cairo, F.,et al. Aerosol variability and atmospheric transport in the Himalayan region from CALIOP 2007-2010 observations[J],2014,14(9):4369-4381.
APA Bucci, S.,Cagnazzo, C.,Cairo, F.,Di Liberto, L.,&Fierli, F..(2014).Aerosol variability and atmospheric transport in the Himalayan region from CALIOP 2007-2010 observations.ATMOSPHERIC CHEMISTRY AND PHYSICS,14(9),4369-4381.
MLA Bucci, S.,et al."Aerosol variability and atmospheric transport in the Himalayan region from CALIOP 2007-2010 observations".ATMOSPHERIC CHEMISTRY AND PHYSICS 14.9(2014):4369-4381.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Bucci, S.]的文章
[Cagnazzo, C.]的文章
[Cairo, F.]的文章
百度学术
百度学术中相似的文章
[Bucci, S.]的文章
[Cagnazzo, C.]的文章
[Cairo, F.]的文章
必应学术
必应学术中相似的文章
[Bucci, S.]的文章
[Cagnazzo, C.]的文章
[Cairo, F.]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。