Reference : Probing the Martian atmosphere with MAVEN/IUVS stellar occultations
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/190832
Probing the Martian atmosphere with MAVEN/IUVS stellar occultations
English
Gröller, H. [Lunar and Planetary Laboratory University of Arizona Tucson, Arizona USA]
Yelle, R. V. [Lunar and Planetary Laboratory University of Arizona Tucson, Arizona USA]
Koskinen, T. T. [Lunar and Planetary Laboratory University of Arizona Tucson, Arizona USA]
Montmessin, F. [LATMOS, Université Versailles Saint-Quentin/CNRS Guyancourt France]
Lacombe, G. [LATMOS, Université Versailles Saint-Quentin/CNRS Guyancourt France]
Schneider, N. M. [Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA]
Deighan, J. [Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA]
Stewart, A. I. F. [Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA]
Jain, S. K. [Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA]
Chaffin, M. S. [Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA]
Crismani, M. M. J. [Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA]
Stiepen, Arnaud mailto [Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) >]
Lefèvre, F. [LATMOS, Université Versailles Saint-Quentin/CNRS Guyancourt France]
Mcclintock, W. E. [Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA]
Clarke, J. T. [Center for Space Physics Boston University Boston, Massachusetts USA]
Holsclaw, G. M. [Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA]
Mahaffy, P. R. [Goddard Space Flight Center Greenbelt, Maryland USA]
Bougher, S. W. [Department of Atmospheric, Oceanic, and Space Sciences University of Michigan Ann Arbor, Michigan USA]
Jakosky, B. M. [Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA]
2015
Geophysical Research Letters
Blackwell Publishing Ltd
Yes (verified by ORBi)
International
0094-8276
1944-8007
[en] Atmosphere ; CO2 and O2 Density ; IUVS/MAVEN ; Mars ; Stellar Occultation ; Temperature ; Climate models ; Earth atmosphere ; Ionosphere ; Stars ; Calculation of temperature ; Density profile ; Lower thermosphere ; Martian atmospheres ; Stellar occultation ; Volatile evolution ; Carbon dioxide
[en] The first campaign of stellar occultations with the Imaging Ultraviolet Spectrograph (IUVS) instrument on board of Mars Atmosphere and Volatile EvolutioN (MAVEN) mission was executed between 24 and 26 March 2015. From this campaign 13 occultations are used to retrieve CO2 and O2 number densities in the altitude range between 100 and 150 km. Observations probe primarily the low-latitude regions on the nightside of the planet, just past the dawn and dusk terminator. Calculation of temperature from the CO2 density profiles reveals that the lower thermosphere is significantly cooler than predicted by the models in the Mars Climate Database. A systematically cold layer with temperatures of 105-120 K is seen in the occultations at a pressure level around 7 × 10-6 Pa. © 2015. American Geophysical Union. All Rights Reserved.
http://hdl.handle.net/2268/190832
10.1002/2015GL065294

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