منابع مشابه
The middle-atmosphere Hadley circulation and equatorial inertial adjustment
In the tropical middle atmosphere the climatological radiative equilibrium temperature is inconsistent with gradient-wind balance and the available angular momentum, especially during solstice seasons. Adjustment toward a balanced state results in a type of Hadley circulation that lies outside the ‘‘downward control’’ view of zonally averaged dynamics. This middle-atmosphere Hadley circulation ...
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Abstract. We investigate the production of equatorial jets which demonstrate strong local super-rotation in an atmospheric general circulation model of Mars. These westerly jets are driven by diurnal thermal tides and their strength is shown to be closely related to the amount of dust in the atmosphere. The super-rotating jets are strongest near to equinox and under conditions of high atmospher...
متن کاملDiabatic Balance Model for the Equatorial Atmosphere
Using an asymptotic expansion, a balancemodel is derived for the shallow-water equations (SWE) on the equatorial b plane that is valid for planetary-scale equatorial dynamics and includes Kelvin waves. In contrast to many theories of tropical dynamics, neither a strict balance between diabatic heating and vertical motion nor a small Froude number is required. Instead, the expansion is based on ...
متن کاملP2-ll Gravity Wave Activity in the Equatorial Middle Atmosphere Observed with a Rayleigh Lidar in India
The radar observations including radar Hauchercorne and Chanin showed that Rayleigh lidar observations are effective to measure the middle atmosphrer,especially at the altitude from 30km to 60km that cannot be observed by radars[Chanin and Hauchercorne, 1984]. Gravity waves in the middle atmosphere have been studied by investigating density and temperature fluctuations observed with Rayleigh Li...
متن کاملResponse of the Middle Atmosphere to CO2 Doubling: Results from the Canadian Middle Atmosphere Model
The Canadian Middle Atmosphere Model (CMAM) has been used to examine the middle atmosphere response to CO2 doubling. The radiative-photochemical response induced by doubling CO2 alone and the response produced by changes in prescribed SSTs are found to be approximately additive, with the former effect dominating throughout the middle atmosphere. The paper discusses the overall response, with em...
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ژورنال
عنوان ژورنال: Journal of geomagnetism and geoelectricity
سال: 1991
ISSN: 0022-1392
DOI: 10.5636/jgg.43.supplement2_695