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Thermal Structure of the Middle and Upper Atmosphere of Mars From ACS/TGO CO2 Spectroscopyстатья Исследовательская статья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 17 апреля 2024 г.
- Авторы: Belyaev Denis, Fedorova Anna, Trokhimovskiy Alexander, Alday Juan, Korablev Oleg, Montmessin Franck, Starichenko Ekaterina, Olsen Kevin, Patrakeev A.S.
- Журнал: Journal of Geophysical Research: Planets
- Том: 127
- Номер: 10
- Год издания: 2022
- Издательство: John Wiley & Sons Inc.
- Местоположение издательства: United States
- Номер статьи: e2022JE007286
- DOI: 10.1029/2022JE007286
- Аннотация: Temperature and density in the upper Martian atmosphere, above ∼100 km, are key diagnostic parameters to study processes of the species' escape, investigate the impact of solar activity, model the atmospheric circulation, and plan spacecraft descent or aerobraking maneuvers. In this paper, we report vertical profiling of carbon dioxide (CO2) density and temperature from the Atmospheric Chemistry Suite (ACS) solar occultations onboard the ExoMars Trace Gas Orbiter. A strong CO2 absorption band near 2.7 μm observed by the middle infrared spectrometric channel (ACS MIR) allows the retrieval of the atmospheric thermal structure in an unprecedentedly large altitude range, from 20 to 180 km. We present the latitudinal and seasonal climatology of the thermal structure for 1.5 Martian years (MYs), from the middle of MY 34 to the end of MY 35. The results show the variability of distinct atmospheric layers, such as a mesopause (derived from 70 to 145 km) and homopause, changing from 90 to 100 km at aphelion to 120–130 km at perihelion. Some short-term homopause fluctuations are also observed depending on the dust activity.
- Добавил в систему: Беляев Денис Анатольевич