globalchange  > 气候变化事实与影响
DOI: 10.1016/j.atmosenv.2015.01.014
Scopus记录号: 2-s2.0-84920901997
论文题名:
Wintertime characteristics of aerosols at middle Indo-Gangetic Plain: Impacts of regional meteorology and long range transport
作者: Kumar M; , Tiwari S; , Murari V; , Singh A; K; , Banerjee T
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 104
起始页码: 162
结束页码: 175
语种: 英语
英文关键词: Aerosol ; Aerosol optical depth ; CALIPSO ; Indo-Gangetic Plain ; MODIS ; Trans-boundary
Scopus关键词: Atmospheric aerosols ; Mass transportation ; Optical properties ; Orbits ; Particles (particulate matter) ; Radiometers ; Satellite imagery ; Aerosol optical depths ; CALIPSO ; Indo-Gangetic Plains ; MODIS ; Trans-boundary ; Aerosols ; aerosol property ; Aqua (satellite) ; CALIOP ; CALIPSO ; long range transport ; MODIS ; optical depth ; regional climate ; satellite imagery ; synoptic meteorology ; wind profile ; winter ; aerosol ; Afghanistan ; air pollutant ; air quality ; altitude ; Article ; atmospheric dispersion ; atmospheric pressure ; atmospheric transport ; biomass ; boundary layer ; China ; climate change ; concentration (parameters) ; dispersion ; environmental monitoring ; environmental temperature ; humidity ; incineration ; India ; meteorology ; Middle East ; mineral dust ; optical depth ; Pakistan ; particulate matter ; photooxidation ; priority journal ; radiation scattering ; residential area ; satellite imagery ; sun exposure ; surface property ; topography ; urban area ; visibility ; wettability ; wind ; winter ; Gangetic Plain
Scopus学科分类: Environmental Science: Water Science and Technology ; Earth and Planetary Sciences: Earth-Surface Processes ; Environmental Science: Environmental Chemistry
英文摘要: To develop a coherent picture of possible origin of Asian aerosol, transport and meteorological interaction; wintertime aerosol (January, 1 to March, 31, 2014 (n=90)) were measured in middle IGP in terms of aerosol mass loading, optical properties, altitudinal distributions and both high and low altitude transportation. Both space-borne passive (Aqua and Terra MODIS) and active sensor (CALIPSO-CALIOP) based measurements were concurrently used over the selected transect (25°10'-25°19'N and 82°54'-83°4'E). Exceptionally high aerosol mass loading was recorded for PM10 (233±58.37μgm-3) and PM2.5 (138±47.12μgm-3). Daily variations of PM2.5/PM10 persist in a range of 0.25-0.97 (mean=0.60±0.14; n=90) and were in accordance to computed Angstrom exponent (0.078-1.407; mean: 1.002±0.254) explaining concurrent contribution of both PM2.5 and PM10 for the region. Space borne (Aqua MODIS-AOD: 0.259-2.194) and ground based (MTP-AOD: 0.066-1.239) AODs revealed significant temporal variability and moderate association in terms of PM10 (MODIS-AOD: 0.46; MTP-AOD: 0.56) and PM2.5 (MODIS-AOD: 0.54; MTP-AOD: 0.39). Varying association of AOD and aerosol mass loading was also explained in terms of meteorological variables. CALIPSO altitude-orbit-cross-section profiles revealed presence of non-spherical coarse particulates (altitude: 1.2-5.4km) and dominance of spherical fine particulates (altitude: 0.1-4.2km). Contribution of trans-boundary aerosols transportation to mass loadings at middle IGP were recognized through lagrangian particle dispersion model, synoptic vector wind profiles at different geopotential heights and satellite images. © 2015 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81960
Appears in Collections:气候变化事实与影响

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作者单位: Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, India; Atmospheric Research Laboratory, Department of Physics, Banaras Hindu University, Varanasi, India

Recommended Citation:
Kumar M,, Tiwari S,, Murari V,et al. Wintertime characteristics of aerosols at middle Indo-Gangetic Plain: Impacts of regional meteorology and long range transport[J]. Atmospheric Environment,2015-01-01,104
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