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  Martian Dust Storms and Gravity Waves: Disentangling Water Transport to the Upper Atmosphere

Shaposhnikov, D. S., Medvedev, A. S., Rodin, A. V., Yiğit, E., & Hartogh, P. (2022). Martian Dust Storms and Gravity Waves: Disentangling Water Transport to the Upper Atmosphere. Journal of Geophysical Research: Planets, 127(1): e2021JE007102. doi:10.1029/2021JE007102.

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 Creators:
Shaposhnikov, Dmitry S., Author
Medvedev, Alexander S.1, Author              
Rodin, Alexander V., Author
Yiğit, Erdal, Author
Hartogh, Paul1, Author              
Affiliations:
1Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832288              

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 Abstract: Simulations with the Max Planck Institute Martian general circulation model for Martian years 28 and 34 reveal details of the water “pump” mechanism and the role of gravity wave (GW) forcing. Water is advected to the upper atmosphere mainly by upward branches of the meridional circulation: in low latitudes during equinoxes and over the south pole during solstices. Molecular diffusion plays little role in water transport in the middle atmosphere and across the mesopause. GWs modulate the circulation and temperature during global dust storms, thus changing the timing and intensity of the transport. At equinoxes, they facilitate water accumulation in the polar warming regions in the middle atmosphere followed by stronger upwelling over the equator. As equinoctial storms decay, GWs tend to accelerate the reduction of water in the thermosphere. GWs delay the onset of the transport during solstitial storms and change the globally averaged amount of water in the upper atmosphere by 10%–25%.

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Language(s): eng - English
 Dates: 2022
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1029/2021JE007102
 Degree: -

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Title: Journal of Geophysical Research: Planets
  Other : JGR-E
  Abbreviation : J. Geophys. Res. - E
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Geophysical Union
Pages: - Volume / Issue: 127 (1) Sequence Number: e2021JE007102 Start / End Page: - Identifier: ISSN: 2169-9100
CoNE: https://pure.mpg.de/cone/journals/resource/2169-9100