Spatial distribution of black carbon concentrations in the atmosphere of Eurasian sector of the Arctic using Merra-2 reanalysis data

Ivan A. Kruglinsky; Dmitry M. Kabanov; Sergey M. Sakerin

doi:10.1117/12.2690144

17 October 2023 Spatial distribution of black carbon concentrations in the atmosphere of Eurasian sector of the Arctic using Merra-2 reanalysis data

Ivan A. Kruglinsky, Dmitry M. Kabanov, Sergey M. Sakerin

Author Affiliations +

Proceedings Volume 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 127802O (2023) https://doi.org/10.1117/12.2690144
Event: XXIX International Symposium "Atmospheric and Ocean Optics, Atmospheric Physics", 2023, Moscow, Russian Federation

Abstract

Based on multiyear (2007-2022) MERRA-2 reanalysis data, we discuss the specific features of the average spatial distribution of absorbing substance (black carbon еВС) in aerosol composition in Eurasian sector of the Arctic. Main attention is devoted to the spatial distribution of the concentrations еВС in the period of expedition measurements (July- October). It is noted that outflows of smokes from massive forest fires in Siberia influence markedly the spatial distribution of еВС in Arctic regions. We present statistical characteristics of the concentrations еВС for six Arctic seas (from the Greenland to Chukchi Sea) and four regions of Northern Eurasia. Latitudinal variations in the concentrations еВС over separate seas are estimated. The model (MERRA-2) calculations are compared with actual multiyear measurements of black carbon concentrations in marine expeditions.

Citation Download Citation

Ivan A. Kruglinsky, Dmitry M. Kabanov, and Sergey M. Sakerin "Spatial distribution of black carbon concentrations in the atmosphere of Eurasian sector of the Arctic using Merra-2 reanalysis data", Proc. SPIE 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 127802O (17 October 2023); https://doi.org/10.1117/12.2690144

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