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DOI | 10.1016/j.atmosres.2018.12.009 |
Atmospheric dynamics associated with exceptionally dusty conditions over the eastern Mediterranean and Greece in March 2018 | |
Kaskaoutis D.G.; Rashki A.; Dumka U.C.; Mofidi A.; Kambezidis H.D.; Psiloglou B.E.; Karagiannis D.; Petrinoli K.; Gavriil A. | |
发表日期 | 2019 |
ISSN | 0169-8095 |
起始页码 | 269 |
结束页码 | 284 |
卷号 | 218 |
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. |
英文关键词 | Cyclones; Dust storms; East Mediterranean; March 2018; Meteorological dynamics; NAO |
语种 | 英语 |
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) |
来源期刊 | Atmospheric Research |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/162114 |
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 |
推荐引用方式 GB/T 7714 | 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],2019,218. |
APA | Kaskaoutis D.G..,Rashki A..,Dumka U.C..,Mofidi A..,Kambezidis H.D..,...&Gavriil A..(2019).Atmospheric dynamics associated with exceptionally dusty conditions over the eastern Mediterranean and Greece in March 2018.Atmospheric Research,218. |
MLA | Kaskaoutis D.G.,et al."Atmospheric dynamics associated with exceptionally dusty conditions over the eastern Mediterranean and Greece in March 2018".Atmospheric Research 218(2019). |
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