Linear baroclinic instability in the Martian atmosphere
A spherical quasi-geostrophic model is used in an examination of linear baroclinic instability in such zonal-mean flows as those of the Martian atmosphere in winter, under both relatively nondusty and very dusty conditions. These zonal flows, which possess both vertical and meridional shear, are cha...
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| Veröffentlicht in: | Journal of the atmospheric sciences 1984-05, Vol.41 (9), p.1536-1550 |
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| container_title | Journal of the atmospheric sciences |
| container_volume | 41 |
| creator | Barnes, J. R. |
| description | A spherical quasi-geostrophic model is used in an examination of linear baroclinic instability in such zonal-mean flows as those of the Martian atmosphere in winter, under both relatively nondusty and very dusty conditions. These zonal flows, which possess both vertical and meridional shear, are characterized by baroclinically unstable modes whose growth rates and phase speeds are generally consistent with available observations. The structures of the spherical modes are similar to those obtained for terrestrial zonal flows, if similar zonal wavelengths are compared. Zonally symmetric topography, like that of Mars' northern hemisphere, reduces linear growth rates without changing the most unstable scale. It also increases phase speeds. |
| doi_str_mv | 10.1175/1520-0469(1984)041<1536:lbiitm>2.0.co;2 |
| format | Article |
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R.</creatorcontrib><title>Linear baroclinic instability in the Martian atmosphere</title><title>Journal of the atmospheric sciences</title><description>A spherical quasi-geostrophic model is used in an examination of linear baroclinic instability in such zonal-mean flows as those of the Martian atmosphere in winter, under both relatively nondusty and very dusty conditions. These zonal flows, which possess both vertical and meridional shear, are characterized by baroclinically unstable modes whose growth rates and phase speeds are generally consistent with available observations. The structures of the spherical modes are similar to those obtained for terrestrial zonal flows, if similar zonal wavelengths are compared. Zonally symmetric topography, like that of Mars' northern hemisphere, reduces linear growth rates without changing the most unstable scale. It also increases phase speeds.</description><subject>Astronomy</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>Lunar And Planetary Exploration</subject><subject>Mars</subject><subject>Planets, their satellites and rings. 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Asteroids</topic><topic>Solar system</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Barnes, J. R.</creatorcontrib><collection>NASA Scientific and Technical Information</collection><collection>NASA Technical Reports Server</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of the atmospheric sciences</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Barnes, J. R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Linear baroclinic instability in the Martian atmosphere</atitle><jtitle>Journal of the atmospheric sciences</jtitle><date>1984-05-01</date><risdate>1984</risdate><volume>41</volume><issue>9</issue><spage>1536</spage><epage>1550</epage><pages>1536-1550</pages><issn>0022-4928</issn><eissn>1520-0469</eissn><coden>JAHSAK</coden><abstract>A spherical quasi-geostrophic model is used in an examination of linear baroclinic instability in such zonal-mean flows as those of the Martian atmosphere in winter, under both relatively nondusty and very dusty conditions. These zonal flows, which possess both vertical and meridional shear, are characterized by baroclinically unstable modes whose growth rates and phase speeds are generally consistent with available observations. The structures of the spherical modes are similar to those obtained for terrestrial zonal flows, if similar zonal wavelengths are compared. 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| ispartof | Journal of the atmospheric sciences, 1984-05, Vol.41 (9), p.1536-1550 |
| issn | 0022-4928 1520-0469 |
| language | eng |
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| source | American Meteorological Society; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; NASA Technical Reports Server; Alma/SFX Local Collection |
| subjects | Astronomy Earth, ocean, space Exact sciences and technology Lunar And Planetary Exploration Mars Planets, their satellites and rings. Asteroids Solar system |
| title | Linear baroclinic instability in the Martian atmosphere |
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