搜索结果: 1-12 共查到“空间物理学 Atmosphere”相关记录12条 . 查询时间(0.171 秒)
How asteroid, comet strikes may have delayed evolution of atmosphere（图）
小行星 彗星撞击 大气科学 高层大气物理学
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2023/6/21
Between 2.5 and 4 billion years ago, a time known as the Archean eon, Earth’s weather could often be described as cloudy with a chance of asteroid.
Back then, it was not uncommon for asteroids or com...
COST 271 Action - Effects of the upper atmosphere on terrestrial and Earth-space communications: introduction
upper atmosphere Space through
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2015/9/14
The COST 271 Action («Effects of the Upper Atmosphere on Terrestrial and Earth-space Communications
») within the European ionospheric community has the objectives, embodied in the
Memoran...
Long-term trends in the ionosphere and upper atmosphere parameters
atmosphere parameters ionosphere
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2015/9/14
The first part of the paper is directed to the investigation of the practical importance of possible longterm trends in the F2-layer for ionospheric prediction models. Using observations of about 50 d...
The effect of recent Venus transit on Earths atmosphere
Venus transit effects on atmospheric electric parameters
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2015/9/8
Some experiments on June 8, 2004, the day of transit of Venus across the Sun, were undertaken at Kolkata (latitude:
22°34lN) to observe the effect, if any, of transit of Venus on FWF, ELF and VLF amp...
Analysis of the atmosphere behaviour in the proximities of an orographic obstacle
atmosphere behaviour proximities of an orographic obstacle
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2009/11/16
The atmospheric behaviour near an orographic obstacle has been thoroughly studied in the last decades. The first papers in this field were mainly theoretical, being more recent the laboratory experime...
A simple nonlinear model of low frequency (interseasonal) oscillations in the tropical atmosphere
nonlinear model low frequency oscillations tropical atmosphere
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2009/11/16
In this paper, for a prescribed normalized vertical convective heating profile, nonlinear Kelvin wave equations with wave-CISK heating over equatorial region is reduced to a sixth-order nonlinear ordi...
Nonlinear instability of baroclinic atmosphere with reference to planetary scale disturbances
Nonlinear instability baroclinic atmosphere planetary scale disturbances
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2009/11/11
In this paper we investigate the stability of zonal flow in a baroclinic atmosphere with respect to finite-amplitude planetary-scale disturbances by applying Arnold's method. Specifically, we examine ...
Generation of zonal flows by Rossby waves in the atmosphere
zonal flows Rossby waves in the atmosphere
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2009/11/11
A novel mechanism for the short-scale Rossby waves interacting with long-scale zonal flows in the Earth's atmosphere is studied. The model is based on the parametric excitation of convective cells by ...
A simplified model of the Martian atmosphere-Part 1:a diagnostic analysis
simplified model Martian atmosphere POD-Galerkin analysis
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2009/11/11
In this paper we derive a reduced-order approximation to the vertical and horizontal structure of a simplified model of the baroclinically unstable Martian atmosphere. The original model uses the full...
A simplified model of the Martian atmosphere-Part 2:a POD-Galerkin analysis
simplified model Martian atmosphere POD-Galerkin analysis
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2009/11/11
In Part I of this study Whitehouse et al. (2005) performed a diagnostic analysis of a simplied model of the Martian atmosphere, in which topography was absent and in which heating was modelled as Newt...
The stochastic multiplicative cascade structure of deterministic numerical models of the atmosphere
stochastic multiplicative cascade structure deterministic numerical models atmosphere
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2009/10/30
By direct statistical analysis we show that over almost all their range of scales and to within typically better than ±1%, atmospheric fields obtained from analyses and numerical integrations of atmos...
The Atmosphere Subprogramme of the Finnish Research Programme on Climate Change (SILMU)
Atmosphere Subprogramme Research Programme
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2009/6/12
The Atmosphere Subprogramme of the Finnish Research Programme on Climate Change (SILMU).