Наукова електронна бібліотека
періодичних видань НАН України
періодичних видань НАН України
Temperature changes over storms from measurements of spacecraft TIMED
Репозиторій DSpace/Manakin
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Temperature changes over storms from measurements of spacecraft TIMED
Інший ID:
DOI:10.17721/2227-1481.6.50-55
Посилання:
Temperature changes over storms from measurements of spacecraft TIMED / S. Pylypenko, O. Motsyk, L. Kozak // Advances in Astronomy and Space Physics. — 2016. — Т. 6., вип. 1. — С. 50-55. — Бібліогр.: 43 назв. — англ.
Підтримка:
The work is done in the frame of complex program of NAS of Ukraine on space researches for 2012-1016, the grant Az. 90 312 from the Volkswagen Foundation ("VW-Stiftung") and within the framework of the educational program No.2201250 "Education, Training of students, PhD students, scientific and pedagogical staff abroad" launched by the Ministry of Education and Science of Ukraine.
Дата:
2016
Переглядів:
768
Завантажень:
510
Анотація:
In the present work we have studied changes of mesospheric temperature over the powerful storms Wilma, Haitang, and Katrina using measurements of the space vehicle TIMED. We have found the temperature increasing at the altitude range 80-100 km. We have found the explanations for the obtained results by the dissipation of the gravity waves. Propagation of atmospheric gravity waves in a non-isothermal, windless atmosphere, with taking into account the viscosity and the thermal conductivity, has also been modelled in this work. We have determined that the maximum of amplitude of the atmospheric-gravity waves at the considered characteristics corresponds to altitudes of near 90 km (mesopause). It was found that the main factor influencing propagation and dissipation of the wave in such cases is the vertical temperature gradient. Viscosity and thermal conductivity have less influence on the wave amplitude.
