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  • Articles  (141)
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  • 1
    Electronic Resource
    Electronic Resource
    Instability of plane parallel shear flow (toward a mechanistic picture of how it works) (1988)
    Springer
    Pure and applied geophysics 126 (1988), S. 103-121 
    Details
    ISSN: 1420-9136
    Keywords: instability ; overreflection ; Orr mechanism ; wave-mean flow interaction ; Orr-Sommerfeld problem ; shear instability
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract This paper reviews work done over the last twelve years on wave overreflection in shear flows, and on the development of a mechanical picture of how overreflection and instability work. It is argued that the wave geometry of a flow configuration is the primary determinant of its stability. It is also argued that the primary mechanism for wave amplification is the Orr mechanism.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00876917
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  • 2
    Electronic Resource
    Electronic Resource
    Tidal theory with Newtonian cooling (1967)
    Springer
    Pure and applied geophysics 66 (1967), S. 90-96 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary Processes representable by Newtonian cooling models are found to be of importance for tides in various planetary atmospheres. The equations of tidal theory are, therefore, rederived to include a rather general Newtonian cooling, and some of the effects of this inclusion are investigated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875315
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  • 3
    Electronic Resource
    Electronic Resource
    On the asymmetric diurnal tide (1965)
    Springer
    Pure and applied geophysics 62 (1965), S. 142-147 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary The response of the atmosphere to a diurnally oscillating thermal drive, asymmetric with respect to the equator, is investigated. It is found that the solutions ofLaplace's tidal equation do not form a complete set; all of them being orthogonal to the associated Legendre polynomial,P 2 1 (cos Θ), Θ being the latitude. As an extension ofLaplace's theorem for gravitationally excited ocean tides to thermally driven atmospheric tides, it is shown that a diurnal drive whose latitude dependence is given byP 2 1 gives rise to no surface pressure oscillation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875296
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  • 4
    Electronic Resource
    Electronic Resource
    Lunar Diurnal Atmospheric Tide (1967)
    [s.l.] : Nature Publishing Group
    Nature 215 (1967), S. 1260-1261 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The diurnal component of the lunar gravitational potential is given by Bartels2 as Q = Xsin0cos0e? (1) where the physical quantity corresponds to the imaginary part of the expression; and I = 2pn (T?2S) + j, q is the colatitude, j is the longitude, t is the time in sidereal days, S = t/lunar ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/2151260a0
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  • 5
    Electronic Resource
    Electronic Resource
    Palaeoclimate sensitivity (1993)
    [s.l.] : Nature Publishing Group
    Nature 363 (1993), S. 25-26 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - Those studying global warming generally define climate sensitivity as the response of the globally and annually averaged temperature to a doubling of CO2. Such a quantity is, in theory, well defined, but to assume that major climate regimes in the past arose from such simple forcing is ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/363025b0
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  • 6
    Electronic Resource
    Electronic Resource
    A note on orbital control of equator-pole heat fluxes (1994)
    Springer
    Climate dynamics 10 (1994), S. 49-57 
    Details
    ISSN: 1432-0894
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract We note that orbital (Milankovitch) variations, in particular the precession of the equinoxes, can lead to profound variations in the flux of heat from the tropics to higher latitudes. The mechanism involves changing the intensity of the Hadley circulation by varying the maximum displacement from the equator of the zonally averaged surface temperature maximum in summer. The precession of the equinoxes causes this quantity to vary by more than a factor of 2. The intensity of the Hadley circulation has a major influence on the heat fluxes in the winter hemisphere. Summer heat fluxes are generally small. Although the precession cycle is characterized by periods in the neighborhood of 20000 years, the variations are modulated by the eccentricity whose variation is dominated by periods in the neighborhood of 100000 years and 400000 years. We show how the fact that both small and large heat fluxes lead to low snowfall (and, hence, small glacial accumulation) causes the demodulation of the heat flux leading to dominant eccentricity periods in the resulting glaciation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00210336
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  • 7
    Electronic Resource
    Electronic Resource
    A note on orbital control of equator-pole heat fluxes (1994)
    Springer
    Climate dynamics 10 (1994), S. 49-57 
    Details
    ISSN: 1432-0894
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract. We note that orbital (Milankovitch) variations, in particular the precession of the equinoxes, can lead to profound variations in the flux of heat from the tropics to higher latitudes. The mechanism involves changing the intensity of the Hadley circulation by varying the maximum displacement from the equator of the zonally averaged surface temperature maximum in summer. The precession of the equinoxes causes this quantity to vary by more than a factor of 2. The intensity of the Hadley circulation has a major influence on the heat fluxes in the winter hemisphere. Summer heat fluxes are generally small. Although the precession cycle is characterized by periods in the neighborhood of 20 000 years, the variations are modulated by the eccentricity whose variation is dominated by periods in the neighborhood of 100 000 years and 400 000 years. We show how the fact that both small and large heat fluxes lead to low snowfall (and, hence, small glacial accumulation) causes the demodulation of the heat flux leading to dominant eccentricity periods in the resulting glaciation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003820050035
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  • 8
    Electronic Resource
    Electronic Resource
    Wave-mean flow interactions in the upper atmosphere (1973)
    Springer
    Boundary layer meteorology 4 (1973), S. 327-343 
    Details
    ISSN: 1573-1472
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The nature of internal gravity waves is described with special emphasis on their ability to transport energy and momentum. The conditions under which these fluxes interact with the mean state of the atmosphere are described and the results are applied to various problems of the upper atmosphere, including the quasi-biennial oscillation, the heat budget of the thermosphere, the general circulation of the mesosphere, turbulence in the mesosphere, and even the ‘4-day’ circulation of the Venusian stratosphere. Gravity waves have long been recognized as an important element in the dynamics of the upper atmosphere - largely due to their very large amplitudes in this region. It is the implied purpose of this paper to convey some of the thinking that has gone on about the role of gravity waves in the large-scale circulation of the upper atmosphere. Insofar as gravity waves are now being identified as important entities in the lower atmosphere as well, it is possible that mechanisms identified in the upper atmosphere will prove relevant to the troposphere.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02265242
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  • 9
    Electronic Resource
    Electronic Resource
    Hydrodynamics of stratified fluids (The applicability of linear theory) (1973)
    Springer
    Boundary layer meteorology 5 (1973), S. 227-231 
    Details
    ISSN: 1573-1472
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02188323
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  • 10
    Electronic Resource
    Electronic Resource
    Atmospheric tides (1969)
    Springer
    Space science reviews 10 (1969), S. 3-188 
    Details
    ISSN: 1572-9672
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00171584
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