Arid
DOI10.1117/12.2223480
Genesis of Elevated Aerosol Loading Over the Indian Region
Prijith, S. S.1; Rao, P. V. N.1; Mohan, Mannil2
通讯作者Prijith, S. S.
会议名称Conference on Remote Sensing and Modeling of the Atmosphere, Oceans, and Interactions VI
会议日期APR 04-07, 2016
会议地点New Delhi, INDIA
英文摘要

Elevated aerosols assume importance as the diabatic heating due to aerosol absorption is more intense at higher altitudes where the atmosphere becomes thinner Indian region, especially its central and northern latitudes, experiences significant loading of elevated aerosols during pre-monsoon and summer months. Genesis of elevated aerosol loading over Indian region is investigated in the present study, using multi-year satellite observations from Cloud Aerosol Lidar with Orthogonal Polarization (CALIOP) and Moderate Resolution Imaging Spectroradiometer (MODIS) along with reanalysis winds from MERRA. Central India is observed to have prominent aerosols loading at higher altitudes during pre-monsoon season, whereas it is during summer months over north-west India Further analysis reveals that the elevated aerosols over Indian region in pre-monsoon and summer months are significantly contributed by transported mineral dust from the arid continental regions at west. In addition to the mineral dust advection, aerosols at higher altitudes over Indian region are enriched by strong convection and associated vertical transport of surface level aerosols. Vertical transport of aerosols observed over Indian region during pre-monsoon and summer months is aided by intense convergence at the surface level and divergence at the upper level. Moreover, aerosol source/sink strength estimated using aerosol flux continuity equation show significant aerosol production over central India during pre-monsoon. Strong vertical transport prevails during pre-monsoon uplifts the locally produced aerosols, with considerable anthropogenic fraction, to higher altitudes where their impacts would be more intense.


英文关键词Elevated aerosols mineral dust aerosol advection convection
来源出版物REMOTE SENSING AND MODELING OF THE ATMOSPHERE, OCEANS, AND INTERACTIONS VI
ISSN0277-786X
出版年2016
卷号9882
EISBN978-1-5106-0123-9
出版者SPIE-INT SOC OPTICAL ENGINEERING
类型Proceedings Paper
语种英语
国家India
收录类别CPCI-S
WOS记录号WOS:000381693500004
WOS关键词TIBETAN PLATEAU ; TRANSPORT ; CLIMATE ; STRATOSPHERE ; POLLUTION
WOS类目Meteorology & Atmospheric Sciences ; Oceanography ; Remote Sensing ; Optics
WOS研究方向Meteorology & Atmospheric Sciences ; Oceanography ; Remote Sensing ; Optics
资源类型会议论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/305675
作者单位1.Indian Space Res Org, Natl Remote Sensing Ctr, Hyderabad, Andhra Pradesh, India;
2.F1 North Pk Apts,Kallingal Lane, Trichur, India
推荐引用方式
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Prijith, S. S.,Rao, P. V. N.,Mohan, Mannil. Genesis of Elevated Aerosol Loading Over the Indian Region[C]:SPIE-INT SOC OPTICAL ENGINEERING,2016.
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