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

Milinevsky, Gennadi; Danylevsky, V.

doi:10.37247/paenvr.1.2020.7

Cited by 3 publications

(4 citation statements)

References 83 publications

(152 reference statements)

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“…The study presents a preliminary comparison of AERONET derived AOT in the atmosphere over Kyiv site and over two Antarctic sites (Vechernaya Hill, ARM_McMurdo). The average AOT at 340 nm spectral wavelength in Kyiv was found to be of 0.3, but in some episodes can even exceed 0.5 (Milinevsky et al, 2014;Milinevsky and Danylevsky, 2018). For the Antarctic atmosphere, typically low AOT values of about 0.05-0.1 were found.…”

Section: Discussionmentioning

confidence: 89%

Preliminary comparison of the direct aerosol radiative forcing over Ukraine and Antarctic AERONET sites

Milinevsky¹,

Yukhymchuk

Grytsai

et al. 2019

UAJ

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Objectives. To analyze data on aerosol optical thickness (AOT) in the atmosphere over some Ukraine and Antarctic AERONET (AErosol RObotic NETwork) sites. To determine and compare direct aerosol radiative forcing (DRF) typical values using the data from midlatitude and Antarctic AERONET sites. Methods. Retrieval and visualization of the AERONET aerosol optical thickness and radiative forcing, data analysis and interpretation of the data. Radiative forcing evaluation using Global Atmospheric ModEl (GAME) and the AERONET operational product. Results. Aerosol optical thickness measurements are considered using observations by sun/sky photometers that are part of the AERONET sites in Ukraine (Kyiv) and at two additional sites in Antarctica (Vechernaya Hill and ARM_McMurdo sites). According to the 2015-2018 measurements at the Vechernaya Hill and ARM_McMurdo sites, the AOT values are small and are in the range of 0.05-0.1 at the 340 nm wavelength. In contrast, the corresponding AOT values from Kyiv observational site are reached 0.3-0.5 and sometimes higher. Using these AOT values from Kyiv site and the urban aerosol types, the aerosol direct radiative forcing has been evaluated by the GAME code. The top of atmosphere (TOA) DRF assessment using GAME suggests the instantaneous values of-5.7 W m-2 over vegetation surface for AOT equal 0.1. Conclusions. The AERONET derived aerosol optical thicknesses over Kyiv site show the mean value of 0.3 at 340 nm; the values over two Antarctic sites are in range of 0.03 to 0.06. Calculations using a numerical code (GAME) suggested the associated TOA instantaneous DRF of-6 W m-2 to-14 W m-2 over the Kyiv site. The values calculated as part of the AERONET Kyiv site operational product are about-20 W m-2 (BOA) and about-10 W m-2 (TOA) during 2018.

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Section: Discussionmentioning

confidence: 89%

Preliminary comparison of the direct aerosol radiative forcing over Ukraine and Antarctic AERONET sites

Milinevsky¹,

Yukhymchuk

Grytsai

et al. 2019

UAJ

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“…In total, the contribution of mixed aerosols in both periods made up over 60%. Aerosols, formed as a result of anthropogenic activity and biomass combustion, were mostly prominent in spring (with the biggest contribution in Czech Republic (29%) and Slovakia (25%)) and in summer (with the biggest contribution in Czech Republic (27%) and Poland (26%)), which is associated with anthropogenic activity (Kim et al, ), forest fires (Milinevsky and Danylevsky, ; Filonchyk et al, ) and meteorological conditions (Ghosh ). Besides, countries of Eastern Europe have the greatest concentration of hazardous industries, which include coal‐mining industry (Poland, Ukraine and Czech Republic), ferrous and non‐ferrous industry (Russia, Poland, Czech Republic, Slovakia, Ukraine), chemical and petrochemical industry (Russia, Ukraine, Czech Republic, Slovakia, Belarus, Hungary), which substantially contributes to the formation of this aerosol type.…”

Section: Resultsmentioning

confidence: 99%

“…Despite the importance of aerosol study, only few investigations were carried out, focused on understanding of aerosol load and temporal variations of aerosols. These investigations were mainly carried out on a regional level only within it is either one or several countries (Borbely‐Kiss et al, ; Milinevsky et al, ; Milinevsky and Danylevsky, ) or several city districts (Pastuszka et al, ; Evgenieva et al, ; Barladeanu et a., ; Górka et al, ), not covering the whole Eastern European region and during a limited period of time (Nemuc et al, ; Pietruczuk ; Pietruczuk et al, ); however, a lot of data are out of date due to remoteness of the investigations performed (Borbely‐Kiss et al, ; Bridges et al, ; Pastuszka et al, ; Oliveira et al, ). Thus, our understanding of aerosol distribution and its temporal variations in various regions of Eastern Europe is extremely limited, which underscores the necessity of further new investigations.…”

Section: Introductionmentioning

confidence: 99%

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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“…Aerosol particles usually concentrated in boundary layer from the surface to a height a few kilometers during such events. For example, measurements of the aerosol altitude distribution over Kyiv by lidar measurements during a similar case of air pollution from forest fires in early September 2015, revealed aerosol particles from the surface and up to 4-5 km [40]. The satellite CALIOP lidar data analysis in July-August 2010 during large-scale forest fires in the European part of Russia showed that the products of aerosol fires over Ukraine were observed from the surface to altitudes of 6 km [5].…”

Section: Aod Data From Kyiv Aeronet Sitementioning

confidence: 99%

Spring 2020 Aerosol Contamination of the Atmosphere over Kyiv City

Zhang¹,

Shulga²,

Milinevsky³

et al. 2022

Preprint

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Extraordinary high aerosol contamination observed in the atmosphere over Kyiv city, 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 investigated using newly established AirVisual sensors mini-network in five areas of the city. The aerosol data from the Kyiv AERONET sun-photometer site analyzed for that period. Aerosol optical depth, Angstrom exponent, and the aerosol particles properties (particles 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 particles. The variability of the optical properties and chemical composition indicates that the aerosol particles in the smoke plumes over Kyiv were produced by different burning material and phases of vegetation fires at different time. The case of enormous PM2.5 aerosol contamination in Kyiv city reveals the need to accept strong measures for forest fire control and prevention in Kyiv region, especially in the north-west region where radioactive contamination from Chornobyl disaster is still significant.

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

Cited by 3 publications

References 83 publications

Preliminary comparison of the direct aerosol radiative forcing over Ukraine and Antarctic AERONET sites

Preliminary comparison of the direct aerosol radiative forcing over Ukraine and Antarctic AERONET sites

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

Spring 2020 Aerosol Contamination of the Atmosphere over Kyiv City

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