Arid
DOI10.1080/01431161.2010.481296
Anthropogenic aerosol fraction over Afro-Asian regions inferred using Kalpana-I and MISR data
Srivastava, N.1; Satheesh, S. K.1,2; Dutt, C. B. S.3; Jagannath, K. S.4
通讯作者Satheesh, S. K.
来源期刊REMOTE SENSING LETTERS
ISSN2150-704X
出版年2011
卷号2期号:1页码:1-9
英文摘要

Mineral dust constitutes the single largest contributor of natural aerosols over continents. The first step towards separating natural aerosol radiative impact from its anthropogenic counterparts over continents is to gather information on dust aerosols. The infrared (IR) radiance (10.5-12.5 mu m) acquired from the Kalpana-I satellite (similar to 8-km resolution) was used to retrieve regional characteristics of dust aerosols over the Afro-Asian region during the winter of 2004, coinciding with a national aerosol campaign. Here, we used aerosol-induced IR radiance depression as an index of dust load. The regional distribution of dust over various arid and semi-arid regions of India and adjacent continents has been estimated, and these data in conjunction with regional maps of column aerosol optical depth (AOD) are used to infer anthropogenic aerosol fraction. Surprisingly, even over desert locations in India and Saudi Arabia, the anthropogenic fraction was relatively high (similar to 0.3 to 0.4) and the regionally averaged anthropogenic fraction over India was 0.62 +/- 0.06.


类型Article
语种英语
国家India
收录类别SCI-E
WOS记录号WOS:000292872700001
WOS关键词INDO-GANGETIC BASIN ; OPTICAL-PROPERTIES ; DUST AEROSOLS ; CLIMATE
WOS类目Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向Remote Sensing ; Imaging Science & Photographic Technology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/170307
作者单位1.Indian Inst Sci, Ctr Atmospher & Ocean Sci, Bangalore 560012, Karnataka, India;
2.Indian Inst Sci, Divecha Ctr Climate Change, Bangalore 560012, Karnataka, India;
3.Indian Space Res Org Headquarters, Bangalore 560094, Karnataka, India;
4.Indian Space Res Org, Master Control Facil, Hassan 573201, India
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Srivastava, N.,Satheesh, S. K.,Dutt, C. B. S.,et al. Anthropogenic aerosol fraction over Afro-Asian regions inferred using Kalpana-I and MISR data[J],2011,2(1):1-9.
APA Srivastava, N.,Satheesh, S. K.,Dutt, C. B. S.,&Jagannath, K. S..(2011).Anthropogenic aerosol fraction over Afro-Asian regions inferred using Kalpana-I and MISR data.REMOTE SENSING LETTERS,2(1),1-9.
MLA Srivastava, N.,et al."Anthropogenic aerosol fraction over Afro-Asian regions inferred using Kalpana-I and MISR data".REMOTE SENSING LETTERS 2.1(2011):1-9.
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