Links between Solar Activity and Atmospheric Circulation (2nd Volume)
A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Upper Atmosphere".
Deadline for manuscript submissions: closed (15 July 2022) | Viewed by 1991
Special Issue Editors
Interests: solar activity; solar-terrestrial connections; global models; atmospheric circulation
Special Issue Information
Dear Colleagues,
The influence of solar activity and associated disturbances of interplanetary medium on the middle atmosphere circulation remains the most important problem in solar-terrestrial physics. The middle atmospher (stratosphere, mesosphere and lower thermosphere, which cover 10-100 km range of altitudes ) is the region of intensive interaction between dynamics and chemical composition. The primary constituents in the lower and middle atmosphere are diatomic nitrogen and oxygen, which together account for 98.65 % of the total mass of the dry atmosphere. The primary constituents have no significant sources or sinks in the stratosphere or mesosphere, so that their mass fractions are nearly constant in height. Solar UV radiation between 100 and 300 nm dissociates primary constituents and that gives the start to many chemical reactions, for example, the reaction of ozone prduction. The important role of oxygen and ozone in the middle atmosphere is heating, which generates the temperature structure of the atmosphere between tropopouse and thermopouse.
Temperature fields and wind fields are closely connected by fundamental equations (A simple example is geostrophic approximation). Therefore, solar UV radiation strongly controls chemistry and dynamics, and its observed variability (solar cycle) leads to correspondents in temperature, winds and composition. Another factor that may disturb polar ozone (and then dynamics) in polar regions is solar energetic particles, which penetrate to the middle atmosphere during solar proton events.
Therefore, such a complicated situation needs detailed knowledge about observed satellite UV measurements, solar particles and corresponded ionization caused in both polar regions, numerical models, which may calculate circulation in the presence of all mentioned above factors, which are the focus of this Special Issue.
Dr. Alexei Krivolutsky
Dr. Anna Kukoleva
Guest Editors
Manuscript Submission Information
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Keywords
- solar forcing
- solar–atmospheric links
- atmospheric circulation
- global models
