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Read e-book online Atmospheric Physics from Spacelab: Proceedings of the 11th PDF

By L. Thomas (auth.), J. J. Burger, A. Pedersen, B. Battrick (eds.)

ISBN-10: 9401015287

ISBN-13: 9789401015288

ISBN-10: 9401015309

ISBN-13: 9789401015301

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Read Online or Download Atmospheric Physics from Spacelab: Proceedings of the 11th ESLAB Symposium, Organized by the Space Science Department of the European Space Agency, Held at Frascati, Italy, 11–14 May 1976 PDF

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Additional info for Atmospheric Physics from Spacelab: Proceedings of the 11th ESLAB Symposium, Organized by the Space Science Department of the European Space Agency, Held at Frascati, Italy, 11–14 May 1976

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Meier, T. P. Coffey and A. W. Ali, J. Geophys. Res. 79, 3171, (1974). 18 48. 49. 50. 51. 52. L. THOMAS E. E. Ferguson and F. C. Fehsenfeld, J. Geophys. Res. 73, 6215, (1968). J. G. Anderson and C. A. Barth, J. Geophys. , 76, 3723,(1971). ~ T. L. , 73, 645, (1973). E. E. Ferguson, Radio Sci. l,~97, (1972). J. D. Whitehead, J. Atmosph7 Terr. , 20, 49, (1971). M. Donahue: The kind of temperature gradients that we infer from oxygen distributions are consistent with those obtained from incoherent scatter-observations.

Les conditions aux limites sur la sphere ne permettent la presence que dtune serie discrete de modes, chaque mode etant caracterise par sa structure verticale et en latitude. Certains modes peuvent se propager verticalernent. La conservation de la densite volumique dtenergie de ltonde lui impose alors une croissance suivant une loi exponentielle. 0 C) ~ .. -' On peut chercher a identifier ces modes en faisant une analyse moyenne des terrnes de 24 h, 12 h , 8 h, observes dans le spectre. Cette analyse a ete faite a Garchy sur 5 annees de mesures, representant 330 j de mesure effective, Dtautre part, les differentes campagnes ont ete groupees en periodes presentant des caracteristiques analogues et assimilees aux saisons bien que ne correspondant pas aux solstices et aux equinoxes.

En automne, l'amplitude reste constante entre 85 et 95 km, puis decroit, la longueur d'onde verticale etant egale a 33 km. Ceci correspondrait donc a une onde fortement amortie, ou a une superposition de deux ou de plusieurs ondes. ) et des radars meteoriques sovietiques (10-11-12). Sans determination d'altitude, ils observent une maree moyenne inferieure a 10 ms- I avec un maximum en aout et decembre, correspondant aux resultats d'hiver et d'ete de Garchy. A Adelaide, 35 0 S les resultats sont tres differents (fig.

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Atmospheric Physics from Spacelab: Proceedings of the 11th ESLAB Symposium, Organized by the Space Science Department of the European Space Agency, Held at Frascati, Italy, 11–14 May 1976 by L. Thomas (auth.), J. J. Burger, A. Pedersen, B. Battrick (eds.)


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