Complex Assessment of Air Composition over the Russian Arctic in September 2020

Atmospheric and Oceanic Optics, Journal Year: 2025, Volume and Issue: 38(1), P. 37 - 45

Published: Feb. 1, 2025

Language: Английский

Seasonal changes in the physicochemical characteristics of atmospheric aerosol at the research station “Ice Base Baranova Cape” (Severnaya Zemlya archipelago)

Arctic and Antarctic Research, Journal Year: 2024, Volume and Issue: 70(3), P. 338 - 352

Published: Sept. 27, 2024

Since 2017 we have carried out aerosol sampling at the research station “Ice Base Baranova Cape” (Novaya Zemlya Archipelago) with purpose of studying variations in physicochemical characteristics: concentrations ions, microelements, organic and elemental carbon (ОС ЕС), as well isotopic composition δ13C aerosol. The average summed ions throughout period measurements were 1,99 μg/m3, elements 51,1 ng/m3; those ОС ЕС 398 25 ng/m3, respectively; was–27.6 ‰. main contribution (73 %) to ion atmospheric is due “marine” Na+ Cl-, terrogenic Fe Al (71 %). large enrichment coefficients (with respect sea water) manifested for SO 2-, K+, Ca2+. Aerosol by these largest warm period. In composition, identified Earth’s crust) Se, Sn, Sb, Mo, As, Zn, Cu, Cr, Pb, Cd, indicating their technogenic origin. nearest sources are plants mining processing mineral resources Taymyr Autonomous Okrug. statistical generalization multiyear data allowed us calculate first time annual behavior chemical study region. With seasonal variations, can be divided into three groups: 1) winter maximum (Na+, Mg2+, Br-; V, Co, As); 2) summer (PO 3-, NH +, CH SO3-, F-) or autumn (Al, Ti, Li, Sr, Fe, Ba, Ni) maximum; 3) poorly defined indefinite other (NO -, Ca2+) (Cu, W, Mn). As most characteristics, behaviors characterized general winter-spring addition, a second content summer-autumn monthly varies range from –28.3 ‰ (February) –27.3 (May).

Language: Английский

Features of the Spatial Distribution of Atmospheric Aerosol in the Eurasian Sector of the Arctic Ocean

Atmospheric and Oceanic Optics, Journal Year: 2024, Volume and Issue: 37(6), P. 881 - 889

Published: Dec. 1, 2024

Language: Английский