Bostan, D.-C.; Miclăuș, I.-M.; Apetroaie, C.; Voiculescu, M.; Timofte, A.; Cazacu, M.-M. Long-Range Transport Analysis Based on Eastern Atmospheric Circulation and Its Impact on the Dust Event over Moldavia, Romania in August 2022. Atmosphere2023, 14, 1366.
Bostan, D.-C.; Miclăuș, I.-M.; Apetroaie, C.; Voiculescu, M.; Timofte, A.; Cazacu, M.-M. Long-Range Transport Analysis Based on Eastern Atmospheric Circulation and Its Impact on the Dust Event over Moldavia, Romania in August 2022. Atmosphere 2023, 14, 1366.
Bostan, D.-C.; Miclăuș, I.-M.; Apetroaie, C.; Voiculescu, M.; Timofte, A.; Cazacu, M.-M. Long-Range Transport Analysis Based on Eastern Atmospheric Circulation and Its Impact on the Dust Event over Moldavia, Romania in August 2022. Atmosphere2023, 14, 1366.
Bostan, D.-C.; Miclăuș, I.-M.; Apetroaie, C.; Voiculescu, M.; Timofte, A.; Cazacu, M.-M. Long-Range Transport Analysis Based on Eastern Atmospheric Circulation and Its Impact on the Dust Event over Moldavia, Romania in August 2022. Atmosphere 2023, 14, 1366.
Abstract
During the second half of August 2022, a dust intrusion event occurred, when dust that originated from the dry regions of Kalmyk steppe and the Precaspian plain was transported over the eastern region of Romania. The dry soil in these regions was the result of the severe drought over a long period of time, accentuated by early heat waves in May and June 2022. The dust event was captured by MODIS images. Smoke trains originating from fires in the north of the Azov were also detected, but these did not reach Romania. Optical parametres from AERONET was used to confirm the dust event. To determine the trajectory of the particles, the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model was used in this paper. The Ensemble median model was used to highlight the presence and concentration of dust in eastern part of Romania. Aerosols were detected between 0 and 4 km, according to radar and ceilometer data of the REXDAN cloud remote sensing facility in Galați, Romania. This dust intrusion event was the result of the dominant easterly cir-culation caused by the extension of East European High to the northeast of the continent, which transported the dust towards eastern part of Romania for more than 2 days. Moreover, the tor-rential rains between August 22nd and 24th did not clear the atmosphere of dust, since the intense easterly circulation kept carrying the dust into the Moldavian area.
Keywords
dust transport; air pollution; eastern atmospheric circulation; aerosols
Subject
Environmental and Earth Sciences, Atmospheric Science and Meteorology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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