Atmospheric Aerosol Over Ukraine Region: Current Status of Knowledge and Research Efforts

Milinevsky, Gennadi; Danylevsky, V.

doi:10.3389/fenvs.2018.00059

Cited by 14 publications

(3 citation statements)

References 89 publications

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“…In the present study, we considered daily averages of AOD at 500 nm, Ångström exponent (AE) values computed using the 440-870 nm spectral channels, particles columnar size distribution, single-scattering albedo (SSA), and complex refractive index (RI). Analysis of the previous observations showed that typical AOD values at wavelengths 500 nm at the Kyiv site do not exceed 0.2-0.3 [6,33,50].…”

Section: Aeronet Sun-photometer Datamentioning

confidence: 90%

“…The AERONET data are useful to study the local aerosol behavior and seasonal dynamics. For the purposes of the paper, we used the data of the Kyiv AERONET site, which has continuously operated by authors since 2008 in the southwest part of the city of Kyiv [33,50,51]. The Kyiv AERONET site is located on the roof of the building where the Golosiiv Air Visual sensor is installed (see Figure 1, station 2) [51].…”

Section: Aeronet Sun-photometer Datamentioning

confidence: 99%

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Spring 2020 Atmospheric Aerosol Contamination over Kyiv City

et al. 2022

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Extraordinarily high aerosol contamination was observed in the atmosphere over the city of Kyiv, Ukraine, during the March–April 2020 period. The source of contamination was the large grass and forest fires in the northern part of Ukraine and the Kyiv region. The level of PM2.5 load was investigated using newly established AirVisual sensor mini-networks in five areas of the city. The aerosol data from the Kyiv AERONET sun-photometer site were analyzed for that period. Aerosol optical depth, Ångström exponent, and the aerosol particles properties (particle size distribution, single-scattering albedo, and complex refractive index) were analyzed using AERONET sun-photometer observations. The smoke particles observed at Kyiv site during the fires in general correspond to aerosol with optical properties of biomass burning aerosol. The variability of the optical properties and chemical composition indicates that the aerosol particles in the smoke plumes over Kyiv city were produced by different burning materials and phases of vegetation fires at different times. The case of enormous PM2.5 aerosol contamination in the Kyiv city reveals the need to implement strong measures for forest fire control and prevention in the Kyiv region, especially in its northwest part, where radioactive contamination from the Chernobyl disaster is still significant.

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Section: Aeronet Sun-photometer Datamentioning

confidence: 90%

Section: Aeronet Sun-photometer Datamentioning

confidence: 99%

Spring 2020 Atmospheric Aerosol Contamination over Kyiv City

et al. 2022

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“…For example, Saharan desert dust was detected over the southeastern United States [8]. The results of the detection of mineral dust in Northern, Southern and Eastern Europe can be found in [9][10][11][12]. The contamination of the Cyprus atmosphere by Saharan dust outbreaks over Nicosia was studied by Amiridis et al [13], and Papayannis et al [14].…”

Section: Introductionmentioning

confidence: 98%

Aerosol Mineral Dust Pollution over Nicosia, Cyprus, April 2019

Yukhymchuk¹,

Milinevsky²,

Syniavskyi³

et al. 2022

Preprint

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The climate change impacts on some regions of the planet faster and stronger. These areas are known as the hot spots for climate change and Cyprus (Nicosia) in the Mediterranean is one of these spots. This paper aims to analyze the significant changes of atmospheric aerosol characteristics in 2019 and during the extreme event of 25 April 2019. We study the aerosol optical thickness (AOT), Ångström exponent, single scattering albedo, refractive index (imaginary and real parts), size, and vertical distribution of aerosol particles during the event of a high atmospheric aerosol contamination over Nicosia in details. For this purpose, we used the ground-based lidar, observations of the sun-photometer AERONET Nicosia station, satellite products from the Moderate Resolution Imaging Spectroradiometer (MODIS), and back trajectories of air movements calculated using the Hybrid Single Particle Lagrangian Integrated Trajectory Model (HYSPLIT). On 23–25 April, according to lidar and sun-photometer observations, strong aerosol pollution over Nicosia was detected. On April 25, 2019, the AOT value exceeds 1.0 at λ = 440 nm. Analysis of the optical and microphysical characteristics supported that the pollution consists of mainly Saharan dust and partly urban aerosols. This assumption was confirmed by HYSPLIT backward trajectories and MODIS images where air masses containing dust particles came from North Africa and from the Eastern part of Europe.

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Climatology of aerosol optical depth over Eastern Europe based on 19 years (2000–2018) MODIS TERRA data

Filonchyk

Hurynovich

Yan

et al. 2019

Intl Journal of Climatology

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This study investigates the spatial–temporal evolution of aerosols, their optical properties (aerosol optical depth [AOD] and ångström exponent [AE]) and the trend over a period of 19 years in the Eastern European countries. The data used for the study are from moderate‐resolution imaging spectroradiometer (MODIS) Terra Collection 6.1 aerosol products with the use of Dark Target algorithm for the period from 2000 to 2018. The satellite‐based AOD products were validated against the AERONET AOD measurements in four stations, located in different regions. The results demonstrate high coherence in the setting of high values of correlation (R = 0.8–0.9) and low values of root‐mean‐square error (RMSE [0.066–0.130]) and mean absolute error (MAE [0.048–0.067]). However, of the total amount of data from AERONET stations, only 68.9% of available data fall within expected error (EE) over land. Generally, all countries recorded a low AOD (83.2% less than 0.2) and high AE (82.5% higher than 1). Mean AOD and AE values varied from 0.17 ± 0.12 and 1.31 ± 0.27 (Russia) to 0.24 ± 0.14 and 1.31 ± 0.33 (Czech Republic). There was a gradual decrease in aerosol load in all countries, the highest tendencies of AOD reduction are observed in Czech Republic, Bulgaria, Slovakia and Hungary (by −0.0028, −0.0027, −0.0026 and −0.0025 per year), while the lowest tendencies of reduction are observed in Russia and Moldova (by −0.001 and −0.0006 per year). Seasonal averaged AOD values have maximum values in summer and minimum values in winter. We studied predominant aerosol types, which are based on AOD and AE interrelation, the results showed the predominance of clean continental and mixed aerosols over all countries of the region.

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Atmospheric Aerosol Over Ukraine Region: Current Status of Knowledge and Research Efforts

Cited by 14 publications

References 89 publications

Spring 2020 Atmospheric Aerosol Contamination over Kyiv City

Spring 2020 Atmospheric Aerosol Contamination over Kyiv City

Aerosol Mineral Dust Pollution over Nicosia, Cyprus, April 2019

Climatology of aerosol optical depth over Eastern Europe based on 19 years (2000–2018) MODIS TERRA data

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