Diagnosis of the Relationship between Dust Storms over the Sahara Desert and Dust Deposit or Coloured Rain in the South Balkans

Prezerakos, N. G.; Παλιατσός, Α. Γ.; Koukouletsos, K. V.

doi:10.1155/2010/760546

Cited by 11 publications

(6 citation statements)

References 49 publications

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“…Additionally, such were the cases on 4th April, 1988 and on March 27, 1992. Both phenomena are associated with the appearance of depressions that are generated in northwest Saharan, to the south of the Atlas Mountains especially during spring [48].…”

Section: Discussionmentioning

confidence: 99%

Meteorological Patterns Associated with Intense Saharan Dust Outbreaks over Greece in Winter

Nastos

2012

Advances in Meteorology

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The Mediterranean Basin and southern Europe are often affected by Saharan dust outbreaks, which influence the aerosol load and properties, air quality standards, visibility and human health. The present work examines, mainly of the meteorological point of view, three intense dust outbreaks occurred over Greece with duration of one or two days, on 4 and 6 February and 5-6 March 2009. The synoptic analysis on the dusty days showed the presence of low-pressure systems in the west coasts of Europe and the north Tyrrhenian Sea, respectively, associated with a trough reaching the north African coast. The result of these conditions was the strong surface and mid troposphere winds that carried significant amounts of dust over Greece. During the dusty days extensive cloud cover associated with the dust plume occurred over Greece. The air-mass trajectories showed a clear Saharan origin in all atmospheric levels, while the satellite (MODIS Terra/Aqua) observations as well as the model (DREAM) predictions verified the intense dust outbreaks over eastern Mediterranean and Greece. The ground based particulate matter concentrations in Athens were excessively increased on the dusty days (PM10: 150–560 μg/m3), while significant dry and wet deposition occurred as forecasted by DREAM model.

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Section: Discussionmentioning

confidence: 99%

Meteorological Patterns Associated with Intense Saharan Dust Outbreaks over Greece in Winter

Nastos

2012

Advances in Meteorology

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“…The role of synoptic scale atmospheric circulation systems in generating dust storms has been highlighted in past works (Prezerakos et al, 2010; Bastan et al, 2013; Hamidi et al, 2013; Al-Jumaily and Ibrahim, 2013; Awad and Mashat, 2014; Boloorani et al, 2014; Wang et al, 2015; Sehatkashani et al, 2014). Prezerakos et al (2010) assessed synoptic scale atmospheric circulation systems associated with the rather frequent phenomenon of coloured rain and the very rare phenomenon of dust or sand deposits from a Saharan sandstorm triggered by a developing strong depression.…”

Section: Introductionmentioning

confidence: 95%

“…Prezerakos et al (2010) assessed synoptic scale atmospheric circulation systems associated with the rather frequent phenomenon of coloured rain and the very rare phenomenon of dust or sand deposits from a Saharan sandstorm triggered by a developing strong depression. Al-Jumaily and Ibrahim (2013) used satellite images, aerosol index data, and synoptic weather charts to link synoptic patterns to formation of dust storms in Iraq.…”

Section: Introductionmentioning

confidence: 99%

Impacts of climate and synoptic fluctuations on dust storm activity over the Middle East

Namdari

Karimi

Sorooshian

et al. 2018

Atmospheric Environment

111

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Dust events in the Middle East are becoming more frequent and intense in recent years with impacts on air quality, climate, and public health. In this study, the relationship between dust, as determined from Aerosol Optical Depth (AOD) and meteorological parameters (precipitation, temperature, pressure and wind field) are examined using monthly data from 2000 to 2015 for desert areas in two areas, Iraq-Syria and Saudi Arabia. Bivariate regression analysis between monthly temperature data and AOD reveals a high correlation for Saudi Arabia (R = 0.72) and Iraq-Syria (R = 0.64). Although AOD and precipitation are correlated in February, March and April, the relationship is more pronounced on annual timescales. The opposite is true for the relationship between temperature and AOD, which is evident more clearly on monthly time scales, with the highest temperatures and AOD typically between August and September. Precipitation data suggest that long-term reductions in rainfall promoted lower soil moisture and vegetative cover, leading to more intense dust emissions. Superimposed on the latter effect are more short term variations in temperature exacerbating the influence on the dust storm genesis in hot periods such as the late warm season of the year. Case study analysis of March 2012 and March 2014 shows the impact of synoptic systems on dust emissions and transport in the study region. Dust storm activity was more intense in March 2012 as compared to March 2014 due to enhanced atmospheric turbulence intensifying surface winds.

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“…Local weather forecasters have long identified specific atmospheric circulations as favoring the overall process for dust transportation over the area of eastern Mediterranean. The type of synoptic-scale atmospheric circulation which favors wet or dry dust deposits over the eastern Mediterranean is comprehensively described as one yielding a southerly to south-westerly flow throughout the entire troposphere (see [34]). The first step in the process is the elevation and suspension of dust in the atmosphere which starts with the development of a north African low pressure system, giving rise to a dust storm.…”

Section: Methodologies and Datamentioning

confidence: 99%

Trends of Dust Transport Episodes in Cyprus Using a Classification of Synoptic Types Established with Artificial Neural Networks

Michaelides¹,

Tymvios²,

Athanasatos³

et al. 2013

Journal of Climatology

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The relationship between dust episodes over Cyprus and specific synoptic patterns has long been considered but also further supported in recent studies by the authors. Having defined a dust episode as a day when the average PM10 measurement exceeds the threshold of 50 mg/(m3 day), the authors have utilized Artificial Neural Networks and synoptic charts, together with satellite and ground measurements, in order to establish a scheme which links specific synoptic patterns with the appearance of dust transport over Cyprus. In an effort to understand better these complicated synoptic-scale phenomena and their associations with dust transport episodes, the authors attempt in the present paper a followup of the previous tasks with the objective to further investigate dust episodes from the point of view of their time trends. The results have shown a tendency for the synoptic situations favoring dust events to increase in the last decades, whereas, the synoptic situations not favoring such events tend to decrease with time.

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Diagnosis of the Relationship between Dust Storms over the Sahara Desert and Dust Deposit or Coloured Rain in the South Balkans

Cited by 11 publications

References 49 publications

Meteorological Patterns Associated with Intense Saharan Dust Outbreaks over Greece in Winter

Meteorological Patterns Associated with Intense Saharan Dust Outbreaks over Greece in Winter

Impacts of climate and synoptic fluctuations on dust storm activity over the Middle East

Trends of Dust Transport Episodes in Cyprus Using a Classification of Synoptic Types Established with Artificial Neural Networks

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