ISSN:
0992-7689
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Geologie und Paläontologie
,
Physik
Notizen:
Abstract Based on the linearized theory of atmospheric gravity waves (AGW) and considering the effects of temperature perturbation on the chemical rate coefficients, the formulae of coupling relations between nj/nj and T′/T driven by AGW (nj and T denote the background quantities) are described, the coupling phases and amplitudes of minor constituents O3, NO, H, OH, and O are analyzed in detail for the mesopause (86 km) and just upside of the O layer (100 km) at daytime. A general principle is outlined: the coupling phases are strongly dependent on density scale heights and perturbation scales, while the amplitudes are little affected by these two factors. A criterion to distinguish the coupling behavior is given: when the minor constituent number density scale height Hj satisfies 1-〈Gamma〉Hm/Hj〉0 (Hm denotes the scale height of the major constituent), the dynamical perturbation process always keeps the nj/nj in phase with T’/T, i.e. keeps the nj/nj in antiphase with that of the major constituent. The results obtained indicate that both the temperature dependence of reaction rate coefficients and the profile slopes of the O distribution may have a major influence on the behavior of the coupling relations.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/s00585-994-0438-0
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