气候变化领域集成服务门户(CCPortal): Assessment of two intense dust storm characteristics over Indo – Gangetic basin and their radiative impacts: A case study

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DOI	10.1016/j.atmosres.2019.05.011
	Assessment of two intense dust storm characteristics over Indo – Gangetic basin and their radiative impacts: A case study
	Tiwari S.; Kumar A.; Pratap V.; Singh A.K.
发表日期	2019
ISSN	0169-8095
起始页码	23
结束页码	40
卷号	228
英文摘要	The present study is focused to examine the impacts of two intense dust storms on aerosol characteristics and their radiative impacts occurred in pre-monsoon season of 2018 (i.e. 17 May and 14 June 2018) over Kanpur (26.51° N, 80.23° E, 123 above msl). Moderate Resolution Imaging Spectroradiometer (MODIS) true colour images, trajectory pathways of dust storm along with satellite observation and AErosol RObotic NETwork (AERONET) measurements confirms that both the dust storms are either originated from or transported over the Thar Desert, causing a higher aerosol loading which spread over entire Indian-Gangetic Basin (IGB) and modifying the aerosol optical (i.e. aerosol optical depth, angstrom exponent, refractive index etc.), physical (i.e. size distribution) and radiative properties (i.e. single scattering albedo, asymmetric parameter). The space-borne Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) - retrieved aerosol measurements reveal the presence of elevated dust/polluted dust aerosol (up to 3–5 km) over IGB which is well corroborated with aerosol characteristics observed by MODIS, Ozone Monitoring Instrument (OMI) and Atmospheric Infrared Sounder (AIRS). The Dust Regional Atmospheric Model (DREAM8b) shows a good agreement with satellite retrievals with higher value of surface dust concentration in the range of 320–640 μg/m3 over Kanpur during the dust storm days. An enhancement in monthly mean outgoing longwave radiation (up to 60 Wm−2) is observed over IGB and downwind flow region during the dust storm days. The atmospheric aerosol radiative forcing is found 124 Wm−2 and 84 Wm−2 during both the dust storm days (17 May and 14 June 2018) associated with heating rate 2.69 K day−1 and 1.84 K day−1 respectively which may be significant to affect the regional atmospheric dynamics and hence the climate system also. © 2019
语种	英语
scopus关键词	Atmospheric aerosols; Atmospheric radiation; Atmospheric thermodynamics; Dust; Infrared devices; Infrared instruments; Optical radar; Radiometers; Refractive index; Satellite imagery; Ultraviolet spectrometers; Aerosol radiative forcing; Aerosol robotic networks; Atmospheric infrared sounders; Cloud-aerosol lidar and infrared pathfinder satellite observations; Moderate resolution imaging spectroradiometer; Outgoing longwave radiation; Ozone monitoring instruments; Single scattering albedo; Storms; aerosol; assessment method; concentration (composition); dust storm; longwave radiation; radiative forcing; Gangetic Plain; India; Kanpur; Uttar Pradesh
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162257
作者单位	Atmospheric Research Laboratory, Department of Physics, Banaras Hindu University, Varanasi, 221005, India; Now at Environmental Research Institute, Shandong University, Qingdao, China; DST - Mahamana Centre of Excellence in Climate Change Research, Banaras Hindu University, Varanasi, India
推荐引用方式 GB/T 7714	Tiwari S.,Kumar A.,Pratap V.,等. Assessment of two intense dust storm characteristics over Indo – Gangetic basin and their radiative impacts: A case study[J],2019,228.
APA	Tiwari S.,Kumar A.,Pratap V.,&Singh A.K..(2019).Assessment of two intense dust storm characteristics over Indo – Gangetic basin and their radiative impacts: A case study.Atmospheric Research,228.
MLA	Tiwari S.,et al."Assessment of two intense dust storm characteristics over Indo – Gangetic basin and their radiative impacts: A case study".Atmospheric Research 228(2019).