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. Citation statistics:
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