Article (Scientific journals)
Nonmigrating tides in the Martian atmosphere as observed by MAVEN IUVS
Lo, D. Y.; Yelle, R. V.; Schneider, N. M. et al.
2015In Geophysical Research Letters
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Keywords :
Atmospheric tides; CO2 density; Mars; MAVEN/IUVS; Upper atmosphere; Carbon dioxide; Tides; Atmospheric tide; Density variations; Longitudinal variations; Martian atmospheres; Nonmigrating tides; Volatile evolution
Abstract :
[en] Using the Mars Atmospheric and Volatile EvolutioN mission (MAVEN) Imaging Ultraviolet Spectrograph (IUVS), we found periodic longitudinal variations in CO2 density in the Martian atmosphere. These density variations are derived from observations of the CO2+ (B2Σ+→X2Π) emission from limb scans in the 100-190 km altitude range. The variations exhibit significant structure with longitudinal wave numbers 1, 2, and 3 in an effectively constant local solar time frame, and we attribute this structure to nonmigrating tides. The wave-2 component is dominated by the diurnal eastward moving DE1 tide at the equator and the semidiurnal stationary S0 tide at the midlatitudes. Wave-3 is dominated by the diurnal eastward moving DE2 tide, with possibly the semidiurnal eastward moving SE1 tide causing an amplitude increase at the midlatitudes. Structure in the wave-1 component can be explained by the semidiurnal westward moving SW1 tide. ©2015. American Geophysical Union.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Lo, D. Y.;  Lunar and Planetary Laboratory University of Arizona Tucson, Arizona USA
Yelle, R. V.;  Lunar and Planetary Laboratory University of Arizona Tucson, Arizona USA
Schneider, N. M.;  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
Stewart, A. I. F.;  Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA
England, S. L.;  Space Sciences Laboratory University of California Berkeley, California USA
Deighan, J. I.;  Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA
Stiepen, Arnaud ;  Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP)
Evans, J. S.;  Computational Physics, Inc. Springfield, Virginia USA
Stevens, M. H.;  Naval Research Laboratory Washington, District of Columbia 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
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
Lefèvre, F.;  Laboratoire ATmosphères, Milieux, Observations Spatiales Centre National de la Recherche Scientifique Paris France
Jakosky, Bruce M.;  Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA
More authors (7 more) Less
Language :
English
Title :
Nonmigrating tides in the Martian atmosphere as observed by MAVEN IUVS
Publication date :
2015
Journal title :
Geophysical Research Letters
ISSN :
0094-8276
eISSN :
1944-8007
Publisher :
Blackwell Publishing Ltd
Peer reviewed :
Peer Reviewed verified by ORBi
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