Air composition over the Russian Arctic. 3 - Trace gases
O.Yu. Antokhina1, P.N. Antokhin1, V.G. Arshinova1, M.Yu. Arshinov1, G. Ancellet2, B.D. Belan1, S.B. Belan1, D.K. Davydov1, G.A. Ivlev1, A.V. Kozlov1, K. Law2, P. NГ©dГ©lec3, T.M. Rasskazchikova1, J.-D. Paris4, D.E. Savkin1, D.V. Simonenkov1, T.K. Sklyadneva1, G.N. Tolmachev1, A.V. Fofonov1
1V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, Tomsk, Russia
2Laboratoire AtmosphГЁres, Milieux, Observations Spatiales, Paris, France
3Laboratoire d’Aerologie, Toulouse, France
4Laboratoire des Sciences du Climat et de l’Environnement, Gif-sur-Yvette, France
Keywords: Arctic, atmosphere, air, vertical distribution, nitrogen dioxide, sulfur dioxide, ozone, nitrogen oxide, carbon monoxide, transport, impurities, composition
Abstract
Based on the results of a comprehensive experiment conducted in September 2020, the spatial distribution of the following trace gases over the seas of the Russian Arctic are analyzed: carbon monoxide (CO), ozone (O3), nitrogen oxide and dioxide (NO and NO2), and sulfur dioxide (SO2). It is shown that the gas concentrations in the surface air layer over the seas (at a height of 200 m) vary in the range 18-36 ppb for O3, 60-130 ppb for CO, 0.005-0.12 ppb for NO, 0.10-1.00 ppb for NO2, and 0.06-0.80 ppb for SO2. Over most seas, the distribution of the gases across the water area is heterogeneous, which most likely reflects differences in their uptake by the ocean and peculiarities of transport from the continent.
|
