DOI: 10.1016/j.atmosenv.2014.02.058
Scopus记录号: 2-s2.0-84895939625
论文题名: The effect of boundary layer dynamics on aerosol properties at the Indo-Gangetic plains and at the foothills of the Himalayas
作者: Raatikainen T ; , Hyvärinen A ; -P ; , Hatakka J ; , Panwar T ; S ; , Hooda R ; K ; , Sharma V ; P ; , Lihavainen H
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 89 起始页码: 548
结束页码: 555
语种: 英语
英文关键词: Aerosol
; Brown cloud
; Himalayas
; India
Scopus关键词: Aerosols
; Atmospheric thermodynamics
; Meteorology
; Aerosol mass concentration
; Boundary layer dynamics
; Himalayas
; India
; Meteorological parameters
; Planetary boundary layers
; Simultaneous measurement
; Synoptic scale circulation
; Atmospheric movements
; black carbon
; aerosol
; air mass
; altitude
; boundary layer
; concentration (composition)
; mass transport
; meteorology
; monsoon
; trajectory
; vertical mixing
; aerosol
; air
; air pollution
; altitude
; article
; astronomy
; boundary layer
; circadian rhythm
; coastal plain
; controlled study
; dust
; dynamics
; foothill
; geographic and geological phenomena
; global climate
; height
; humidity
; mass
; measurement
; meteorology
; pollution transport
; priority journal
; seasonal rain forest
; seasonal variation
; South Asia
; topography
; Delhi
; Gangetic Plain
; Himalayas
; India
; New Delhi
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: Previous studies have noted that aerosols originating from the polluted Indo-Gangetic plains can reach high altitudes at the Indian Himalayas and thereby have an effect on the south Asian monsoon. Here we examine the transport of pollutions by comparing aerosol properties from a Himalayan foothill measurement site and a site at the Indo-Gangetic plains. Gual Pahari is a polluted semi-urban background measurement site at the Indo-Gangetic plains close to New Delhi and Mukteshwar is a relatively clean background measurement site at the foothills of the Himalayas about 270km NE from Gual Pahari and about 2km above the nearby plains. The data set has more than two years of simultaneous measurements including meteorological parameters and aerosol mass concentrations. Modeled backward trajectories and Planetary Boundary Layer (PBL) heights are also used to examine the origin or air masses and the extent of the vertical mixing. The comparison shows that aerosol concentrations at the foothill site are correlated with the average PBL height. Together with the favorable synoptic scale circulation, this suggests a contribution of air mass transport from the plains. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80864
Appears in Collections: 气候变化事实与影响
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作者单位: Finnish Meteorological Institute, Erik Palménin aukio 1, P.O. Box 503, 00101 Helsinki, Finland; The Energy and Resources Institute (TERI), Darbari Seth Block, IHC Complex, Lodhi Road, New Delhi 110 003, India
Recommended Citation:
Raatikainen T,, Hyvärinen A,-P,et al. The effect of boundary layer dynamics on aerosol properties at the Indo-Gangetic plains and at the foothills of the Himalayas[J]. Atmospheric Environment,2014-01-01,89