Analysis of a Saharan Dust Intrusion Over Central and Eastern Europe, Using Ground-Based Remote Sensing Techniques

Radovici, Andrei; Ştefănie, Horaţiu; Ozunu, Alexandru; Camarasan, Horia; Ajtai, Nicolae

doi:10.5593/sgem2021/2.1/s10.60

Cited by 3 publications

(3 citation statements)

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“…Similar to specific events that were highlighted in previous studies on dust intrusions over Cluj-Napoca [65], [67], [68], [73], this statistical analysis confirm that dust aerosols are notably prevalent during the months of April, May, and June. This seasonality is mostly determined by atmospheric circulation patterns.…”

Section: Figure 9 Monthly Distribution Of Observations For Each Aeros...supporting

confidence: 88%

Variation of Aerosol Optical Properties and Trends over Cluj-Napoca, Romania, Based on 10 Years of AERONET Data and Satellite-Based Observations

Ştefănie¹,

Radovici²,

Mereuta³

et al. 2023

Preprint

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Aerosols play an important role in Earth’s climate system, thus long time ground based measurements of aerosol optical properties are useful in understanding this role. 10 years of quality-assured measurements between 2010 and 2020 are used to investigate the aerosol climatology in the Cluj-Napoca area, in North-Western Romania. In this study, we analyze the Aerosol Optical Depth (AOD), Single Scattering Albedo (SSA) and Ångström exponent obtained by CIMEL sun photometer, part of the Aerosol Robotic Network (AERONET) to extract the seasonality of aerosols in the region and investigate the aerosol climatology of the area. Higher aerosol loads are found during July and August. Ångström exponent has the lowest values in April and May and the highest in August. The classification of aerosols using AERONET data is performed to separate dust, biomass burning, polluted urban, marine and continental dominant aerosol mixtures. In addition, the study presents the validation efforts of the Multi-Angle Implementation of Atmospheric Correction (MAIAC) dataset against AERONET AOD over 10 years period.

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Section: Figure 9 Monthly Distribution Of Observations For Each Aeros...supporting

confidence: 88%

Variation of Aerosol Optical Properties and Trends over Cluj-Napoca, Romania, Based on 10 Years of AERONET Data and Satellite-Based Observations

Ştefănie¹,

Radovici²,

Mereuta³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Similar to specific events that were highlighted in previous studies on dust intrusions over Cluj-Napoca [39,[63][64][65], this statistical analysis confirms that dust aerosols are notably prevalent during the months of April, May, and June. This seasonality is mostly determined by atmospheric circulation patterns.…”

Section: Seasonalitysupporting

confidence: 88%

“…The April minimum can be mainly attributed to the presence of larger aerosol particles such as mineral dust. This is a consequence of the Saharan dust intrusion events, as shown in [39,[63][64][65].…”

Section: Seasonalitymentioning

confidence: 99%

Variation of Aerosol Optical Properties over Cluj-Napoca, Romania, Based on 10 Years of AERONET Data and MODIS MAIAC AOD Product

et al. 2023

View full text Add to dashboard Cite

Aerosols play an important role in Earth’s climate system, and thus long-time ground- based measurements of aerosol optical properties are useful in understanding this role. Ten years of quality-assured measurements between 2010 and 2020 are used to investigate the aerosol climatology in the Cluj-Napoca area, in North-Western Romania. In this study, we analyze the aerosol optical depth (AOD), single scattering albedo (SSA) and angstrom exponent obtained by the CIMEL sun photometer, part of the aerosol robotic network (AERONET), to extract the seasonality of aerosols in the region and investigate the aerosol climatology of the area. Higher aerosol loads are found during July and August. The angstrom exponent has the lowest values in April and May, and the highest in August. The classification of aerosols using AERONET data is performed to separate dust, biomass burning, polluted urban, marine and continental-dominant aerosol mixtures. In addition, the study presents the validation efforts of the Multi-Angle Implementation of Atmospheric Correction (MAIAC) dataset against AERONET AOD over a 10-year period.

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Detection of Local and Long-Range Transported Aerosol Intrusions Over Cluj-Napoca, Romania Using Multiwavelength Lidar Measurements in Spring 2022

Ştefănie

Radovici

Mereuță

et al. 2022

22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Informatics, Geoinformatics and Remote Sen

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It is well known that atmospheric aerosols have both a direct and an indirect impact on the Earth's systems and have natural or anthropogenic origins. In this paper we present the results of the 2022 spring-time lidar measurements conducted within the European Aerosol Research Lidar Network (EARLINET) using a multi-wavelength Raman and depolarization LIDAR system operated in Cluj-Napoca, Romania. The Cluj-Napoca lidar system (CLOP) emission is based on a Nd-YAG laser Continuum INLITE II-30, which has a repetition rate of 30 Hz. The radiation at 1064, 532, and 355 nm is simultaneously emitted into atmosphere. The backscattered radiation is collected by a Cassegrain type telescope with a focal length of 1500 mm. The signal detection unit has a total of 6 detection channels, 4 channels for the elastically backscattered radiation at 1064, 532 (cross and parallel), and 355 nm and 2 channels for the Raman radiation backscattered by nitrogen molecules at 607 and 387 nm. This type of system meets the requirements of the EARLINET network and is suitable to provide reliable data on optical parameters for aerosol characterization. The reference period for the observations was in accordance with EARLINET�s fixed measurements schedule. The preliminary results indicated the presence of both natural (mineral dust) and anthropogenic (resulted from seasonal biomass burning) aerosols originated from local sources or subject of long-range transport (LRT).

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Analysis of a Saharan Dust Intrusion Over Central and Eastern Europe, Using Ground-Based Remote Sensing Techniques

Cited by 3 publications

References 0 publications

Variation of Aerosol Optical Properties and Trends over Cluj-Napoca, Romania, Based on 10 Years of AERONET Data and Satellite-Based Observations

Variation of Aerosol Optical Properties and Trends over Cluj-Napoca, Romania, Based on 10 Years of AERONET Data and Satellite-Based Observations

Variation of Aerosol Optical Properties over Cluj-Napoca, Romania, Based on 10 Years of AERONET Data and MODIS MAIAC AOD Product

Detection of Local and Long-Range Transported Aerosol Intrusions Over Cluj-Napoca, Romania Using Multiwavelength Lidar Measurements in Spring 2022

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