DOI: 10.1016/j.atmosres.2018.12.009
Scopus记录号: 2-s2.0-85058572998
论文题名: Atmospheric dynamics associated with exceptionally dusty conditions over the eastern Mediterranean and Greece in March 2018
作者: Kaskaoutis D.G. ; Rashki A. ; Dumka U.C. ; Mofidi A. ; Kambezidis H.D. ; Psiloglou B.E. ; Karagiannis D. ; Petrinoli K. ; Gavriil A.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2019
卷: 218 起始页码: 269
结束页码: 284
语种: 英语
英文关键词: Cyclones
; Dust storms
; East Mediterranean
; March 2018
; Meteorological dynamics
; NAO
Scopus关键词: Budget control
; Dust
; Dynamics
; Sea level
; Dust storm
; East Mediterranean
; Extinction coefficients
; Ground based measurement
; March 2018
; Mean sea level pressures
; Meteorological condition
; Meteorological dynamics
; Storms
; aerosol
; atmospheric dynamics
; concentration (composition)
; cyclone
; dust storm
; energy flux
; geopotential
; meteorology
; North Atlantic Oscillation
; sea level pressure
; westerly
; Greece
; Mediterranean Sea
; Mediterranean Sea (East)
英文摘要: This study examines the atmospheric dynamics that facilitated frequent and intense dust storms over the eastern Mediterranean in March 2018 via the synergy of satellite observations, ground-based measurements and reanalysis. The negative NAO phase in March 2018 caused cold weather conditions over the central/west Europe and strengthened the temperature gradient between cold European and warm North-African air at all levels from the surface up to 300 hPa. Large negative mean sea-level pressure (MSLP) anomalies over the western Mediterranean and south Europe strengthened the sea-level pressure and geopotential-height gradients across the Mediterranean, resulting in intensification of the westerlies over the west/central Mediterranean and the development of the Sharav cyclones along the north African coast. In addition, enhanced south/southwesterlies dominated over the eastern Mediterranean, associated with cyclonic conditions and intense dust storms on several days in March 2018. These meteorological conditions resulted in an increase of ~0.3–0.4 in AOD (~100%) and ~200 μg m−3 in surface dust concentration over parts of the eastern Mediterranean, compared to the mean March climatology. The vertical aerosol profiles over the eastern Mediterranean show a large increase in the mean extinction coefficient (~200 Mm−1) due to dust loading at altitudes between ~1 and 4 km. The dust radiative impact caused a significant decrease (~−10 Wm−2) in the incoming solar radiation under clear skies and in the latent and sensible energy fluxes over the eastern Mediterranean in March 2018, thus modulating the radiation/energy budget. © 2018 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122335
Appears in Collections: 气候变化事实与影响
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作者单位: Atmospheric Research Team, Institute for Environmental Research and Sustainable Development, National Observatory of Athens, Athens, 11810, Greece; Department of Desert and Arid Zones Management, Ferdowsi University of Mashhad, Mashhad, 91735, Iran; Aryabhatta Research Institute of Observational Sciences, Nainital, 263 001, India; Department of Geography, Ferdowsi University of Mashhad, Mashhad, 91735, Iran
Recommended Citation:
Kaskaoutis D.G.,Rashki A.,Dumka U.C.,et al. Atmospheric dynamics associated with exceptionally dusty conditions over the eastern Mediterranean and Greece in March 2018[J]. Atmospheric Research,2019-01-01,218