DOI: 10.1016/j.atmosenv.2015.01.037
Scopus记录号: 2-s2.0-84922646127
论文题名: Radiative effect of dust aerosols on cloud microphysics and meso-scale dynamics during monsoon breaks over Arabian sea
作者: Harikishan G ; , Padmakumari B ; , Maheskumar R ; S ; , Kulkarni J ; R
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 105 起始页码: 22
结束页码: 31
语种: 英语
英文关键词: Cloud micro and macrophysics
; Dust aerosol
; Monsoon breaks
; Radiative heating
; Semi-direct effect
Scopus关键词: Aerosols
; Atmospheric thermodynamics
; Heating
; Backscatter coefficients
; Cloud-aerosol lidar and infrared pathfinder satellite observations
; Dust aerosols
; Earth's radiant energy systems
; Monsoon breaks
; Radiative heating
; Semi-direct effect
; Top of the atmospheres
; Dust
; aerosol
; backscatter
; cloud microphysics
; dust
; heating
; monsoon
; pristine environment
; radiative transfer
; aerosol
; Article
; atmosphere
; cloud
; cold
; controlled study
; dust
; global climate
; heating
; India
; monsoon break
; physical parameters
; priority journal
; warming
; West Asian
; Arabian Sea
; India
; Indian Ocean
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: During monsoon breaks (large scale rainfall below the long term normal), dry air laddened with dust aerosols intrude over central India through Arabian sea (AS) from West Asian desert regions. To understand the effect of these dust aerosols on marine clouds over AS during monsoon breaks, Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) and Cloud and the Earth's Radiant Energy System (CERES) data have been analyzed for the period 2007 to 2013. The vertical profile of dust backscatter coefficient (DBS) showed an elevated layer between 2 and 5km and the maximum heating rate observed is 9K/Day which is higher by 3K/day as compared to the heating observed in June to September (JJAS) mean. Semi-direct effect due to the interaction of the long range transported dust with pristine cloud environment is observed in both warm and cold clouds. Significant differences in shortwave and longwave fluxes at the top of the atmosphere (TOA), cloud micro and macrophysical parameters are observed between the clouds with and without dust. Also, the percentage differences are more in cold clouds as compared to warm clouds. Dust induced semi-direct effect is found to be more pronounced in cold clouds, while indirect effect in warm clouds. Zonal anomalies of dynamical parameters due to dust induced heating, affect the circulation patterns in the immediate meso-scale environment, which strengthen/extend the monsoon break situation. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81978
Appears in Collections: 气候变化事实与影响
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作者单位: Indian Institute of Tropical Meteorology, Pune, India
Recommended Citation:
Harikishan G,, Padmakumari B,, Maheskumar R,et al. Radiative effect of dust aerosols on cloud microphysics and meso-scale dynamics during monsoon breaks over Arabian sea[J]. Atmospheric Environment,2015-01-01,105