Characteristics of aerosol at the research base “Ice Cape Baranova” in 2018–2023

• Published in: Environmental Pollution
• Main Authors: S. M. Sakerin, D. M. Tomsk, M. А. Loskutova, D. D. Rize, D. G. Chernov, Yu. S. Turchinovich, С. М. Сакерин, Д. М. Кабанов, М. А. Лоскутова, Д. Д. Ризе, Д. Г. Чернов, Ю. С. Турчинович
• Other Authors: The authors are grateful to V.P. Shmargunov for supporting the operation of the MDA aetalometer and G.K. Aksenenko for participating in the measurements. We also acknowledge the developers of the Giovanni online data system (https://giovanni.gsfc.nasa.gov/giovanni) maintained by NASA GES DISC and the MERRA-2 mission scientists who provided the data used in our study. Funding. This work was supported by the Russian Science Foundation (Grant No. 21-77-20025). The AOT data were obtained using the techniques and equipment of the Center for Collective Use “Atmosphere” with a support from the Ministry of Education and Science of Russia (Agreement No. 075-15-2021-661). The measurements of aerosol characteristics were carried out on the subject of NITR 5.1.4 “Monitoring of the state and pollution of the natural environment, including the cryosphere, in the Arctic basin and areas of the research station “Ice Base Cape Baranov”, the Tiksi Hydrometeorological Observatory and the Russian Scientific Center on the Svalbard Archipelago”., Авторы выражают благодарность В.П. Шмаргунову за поддержку функционирования аэталометра МДА и Г.К. Аксененко за участие в измерениях. Мы также выражаем признательность разработчикам онлайн-системы данных Giovanni (https://giovanni.gsfc.nasa.gov/giovanni), поддерживаемой NASA GES DISC и ученым миссии MERRA-2, которые предоставили данные, использованные в нашем исследовании. Финансирование. Исследования выполнялись при финансовой поддержке проекта РНФ № 21-77-20025. В измерениях АОТ атмосферы использовался солнечный фотометр SPM, входящий в состав ЦКП «Атмосфера» поддержанного Минобрнауки России (соглашение № 075-15-2021-661). Измерения характеристик аэрозоля проводились по теме НИТР 5.1.4 «Мониторинг состояния и загрязнения природной среды, включая криосферу, в Арктическом бассейне и районах научно-исследовательского стационара “Ледовая база Мыс Баранова”, Гидрометеорологической обсерватории Тикси и Российского научного центра на архипелаге Шпицберген».
• Format: Article in Journal/Newspaper
• Language: Russian
• Published: Государственный научный центр Российской Федерации Арктический и антарктический научно-исследовательский институт 2023
• Subjects: черный углерод; aerosol; atmosphere; black carbon; seasonal variability; атмосфера; аэрозоль; сезонная изменчивость; Barentsburg; Merra; Severnaya Zemlya; Arctic; Bolshevik Island; Cape Baranov; Spitsbergen
• Online Access: https://www.aaresearch.science/jour/article/view/572; https://doi.org/10.30758/0555-2648-2023-69-4-421-434

Atmospheric aerosol plays an important role in the processes of radiative transfers and mass exchange by different substances in the “continent–atmosphere–ocean” system. In this paper we discuss the results of a five-year measurement cycle of the atmospheric aerosol characteristics at the polar station “Ice base Cape Baranov”, located on the Bolshevik Island (the Severnaya Zemlya Archipelago). The set of the characteristics analyzed includes: the aerosol optical depth (AOD) of the atmosphere; the ground concentration of aerosol particles in the radius range of 0.15–5 microns; the content of the absorbing substance (soot) in the aerosol in the equivalent of elemental black carbon. The average values of the aerosol characteristics for the general measurement period (from April 2018 to May 2023) were: volumes of submicron and coarse aerosol particles 0.43 and 0.46 μm3/cm3, respectively; mass concentration of black carbon — 45.8 ng/m3; AOT of the atmosphere at a wavelength of 0.5 µm — 0.08; Angstrom selectivity exponent — 1.67. The average annual variation of aerosol and black carbon concentrations is characterized by a maximum in winter (January–March) and a minimum in summer (June–August). A comparison is made against the data from analogous measurements of aerosol characteristics at the polar station in Barentsburg (the Spitsbergen Archipelago) and against the data from model calculations, i. e., MERRA-2 reanalysis. A distinctive feature of the data in the Cape Baranov area is the low content of coarse aerosol — 1.7 less than in Barentsburg. There is agreement with the annual variation of black carbon concentrations at other polar stations, but the opposite nature of the seasonal variability of model (MERRA-2) concentrations: low values in winter and high values in summer. It is shown that the average spectral AODs of the atmosphere at the “Cape Baranov” are intermediate values between the data from polar stations in NyÅlesund and Barentsburg. Представлено обобщение результатов пятилетнего (апрель 2018 г. — май ...