K. Knott (auth.), K. Knott, A. Durney, K. Ogilvie (eds.)'s Advances in Magnetosperic Physics with GEOS-1 and ISEE PDF

By K. Knott (auth.), K. Knott, A. Durney, K. Ogilvie (eds.)

ISBN-10: 940099527X

ISBN-13: 9789400995277

ISBN-10: 9400995296

ISBN-13: 9789400995291

(Opening deal with of thirteenth ESLAB Symposium) With GEOS and ISEE occupying an incredible a part of the ESA medical programme it used to be transparent a number of years in the past 'natural' foundation for the 1978 ESLAB Annual Symposium often is the early information from those spacecraft. through the 1976 assembly of the eu Geophysical Society in Amsterdam it turned obvious to me a lot wider neighborhood was once and that during specific operating workforce 2 of COSPAR used to be contemplating a GEOS consultation in the course of its 1978 assembly the following in Innsbruck. This was once in fact because it needs to be simply because GEOS were followed because the reference spacecraft for the overseas Magnetospheric examine. After a few discussions with COSPAR and with the organizers of the STP Symposium which used to be held right here final week we felt that during the curiosity of shopper family members and following solid good judgment we must always hand over a few of our independence in 1978 and merge our Symposium with COSPAR. i'd gratefully recognize the co-operation of COSPAR's operating workforce 2 chairman and vice-chairman, the lively aid of the President of COSPAR and the 'gentleman's contract' with the STP programme committee which prepared that the hot ISEE and GEOS effects have been routed to this Symposium instead of to the STP. i've got noted how we got here to have this joint Symposium. possibly I should still inform you too how we got here just about having no Symposium.

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M. , Troitskaya, V. , and Yakimenko. V. : 1971, Planetary Space Sci. J, 165. Gendrin, R, Perraut. , Glan&eaud. , FargcttoD. , and LaaJume, J. , Space Sd.. Rev. Z2, 433. Gumett. D. A: 1976. J. Geophya. Res. 8~ 2765. Heppner, J. , Sugiura, M, ~1man. T. L. Ledley, B. : 1967,1. Geophy•. Res. n, 5417. Heppner, J. , Ledley, B. , Skillman, T. s and Sugium. M: 1970, Ann. Gtophy£. 26, 709. Hughes, W. J.. • and Barfield. I. : 1978, 1. Geophys. Res. Ill, 1109. : 1978, Space Sci. Reu.. Z%. 327. Kennel, C. , Scmf.

6. 0, the uncertainty is mainly due to the poor determination of Ne on December 13. Nevertheless, there is good agreement with Equation (3). If we try to interpret the observations in terms of standing hydromagnetic wave modes the azimuthal Bw and the radial Vw do not fit any single mode as reviewed in papers by Lanzerotti and Fukunishi (1974) and by Orr (1973). We suggest the following tentative explanation: The oscillating azimuthal electric field and corresponding radial plasma flow is due to the first harmonic of an odd poloidal mode which implies radial motion of the plasma and Bw = 0 near the geomagnetic equator.

The fact that this emission is seen on BL (upper panel) and not on B z (middle panel) indicates that it is mainly polarized (in the left hand mode) in the plane perpendicular to the DC magnetic field (note that the (J angle remains small throughout the event). 5 Hz), seen only on the B z component (middle panel) consists apparently of a mixture of decreasing and increasing frequencies. 7 Hz, the interpretation becomes easier. On the lower panel of Figure 8, we have reconstructed what should be the original signal, by taking the symmetrical image with respect to the Nyquist frequency.

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Advances in Magnetosperic Physics with GEOS-1 and ISEE by K. Knott (auth.), K. Knott, A. Durney, K. Ogilvie (eds.)

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