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Документы 31 - 40 из 49
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31.
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Автор:
Gavrilyeva Galina Alekseevna
Заглавие: Measurements of the mesosphere temperature by two molecular emissions in Yakutsk (62°N, 129,5°E)

Количество страниц: 4 с.

The results of the hydroxyl and oxygen molecules rotational temperature measurements during two observational seasons 1999-2001 at Maymaga station (φ=63°N;λ=129.50°E) are presented. The rotational temperatures of OH(6,2) and O2 (0,1) bands have been measured with the infrared spectrograph equipped by the cooled CCD registration system. It is shown that the amplitude of seasonal change of hydroxyl rotational temperature is greater than the molecular oxygen variation. OH temperatures have been systematically higher the O2 ones during winter. An abrupt decrease of the O2 intensity connected with the springtime transition of the atmospheric circulation is found in both time series. For the first time a change of the temperature vertical gradient sign caused by mesopause height displacemet to a higher (winter) level was shown in the data of August-September 2001.

Gavrilyeva, G. A. Measurements of the mesosphere temperature by two molecular emissions in Yakutsk (62°N, 129,5°E) / G. A. Gavrilyeva // Physics of auroral phenomena : proceedings of the 26th annual seminar, 25 - 28 February 2003. – 2003. – P. 198-201.

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32.
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Авторы:
Solovyev Stepan Ivanovich, Moiseyev Aleksey Vladimirovich, Du A., Engebretson Mark, Newitt L. R.
Заглавие: Sources of excitation and damping of PC5 geomagnetic pulsations during the magnetic storms of october 29-31, 2003 influence of the solar wind and auroral electrojets

Количество страниц: 1 с.

Sources of excitation and damping of PC5 geomagnetic pulsations during the magnetic storms of october 29-31, 2003 influence of the solar wind and auroral electrojets : [тезисы докладов] / Solovyev S. I., Moiseyev A. V., Du A., Engebretson M., Newitt L. R. // International symposium on Solar Extreme Events of 2003 : programme and abstract book. – Москва : УНЦ ДО, 2004. – P. 59.

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33.
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Авторы:
Solovyev Stepan Ivanovich, Moiseyev Aleksey Vladimirovich, Baishev Dmitriy Gavrilievich, Yumoto Kiyohumi, Engebretson Mark
Заглавие: Evidence of the Psi geomagnetic pulsations burst excitation as the direct response to the solar wind pressure pulses

Количество страниц: 2 с.

Evidence of the Psi geomagnetic pulsations burst excitation as the direct response to the solar wind pressure pulses : [тезисы докладов] / S. I. Solovyev, A. V. Moiseyev, D. G. Baishev, K. Yumoto, M. Engebretson // Physics of auroral phenomena : 24 annual seminar, 27 February - 2 March 2001. – 2001. – P. 48.

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34.
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Авторы:
Boroyev Roman Nikolaevich, Moiseyev Aleksey Vladimirovich, Solovyev Stepan Ivanovich, Yumoto Kiyohumi, Engebretson Mark
Заглавие: Development of DPY currents and auroral convection electrojets during the growth phase of a substorm accocding to geomagnetic observations data

Количество страниц: 2 с.

Development of DPY currents and auroral convection electrojets during the growth phase of a substorm accocding to geomagnetic observations data : [тезисы докладов] / R. N. Boroev, A. V. Moiseyev, S. I. Solovyev, M. Engebretson, K. Yumoto // Physics of auroral phenomena : 26th annual seminar, 25-28 February 2003 : abstacts. – 2003. – P. 21.

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35.
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Авторы:
Moiseyev Aleksey Vladimirovich, Solovyev Stepan Ivanovich, Du A.
Заглавие: Peculiarities of traveling convection vortices propagation: comparison with sudden geomagnetic impulse

Количество страниц: 4 с.

Moiseyev, A. V. Peculiarities of traveling convection vortices propagation: comparison with sudden geomagnetic impulse / A. V. Moiseyev, S. I. Solovyev, A. Du // Physics of auroral phenomena : proceedings of the 32nd annual seminar, Apatity, 3 – 6 March 2009. – 2010. – P. 75-78.

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36.
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Авторы:
Jin-Bin Cao , Chunxiao Yan, Dunlop Malcolm, Reme Henri , Dandouras Iannis , Tielong Zhang, Dongmei Yang, Moiseyev Aleksey Vladimirovich, Solovyev Stepan Ivanovich, Wang Z. Q., Leonoviche Anatoly Sergeevich, Zolotukhina N. A., Mishin Vilen M.
Заглавие: Geomagnetic signatures of current wedge produced by fast flows in a plasma sheet

Количество страниц: 6 с.

This paper uses the plasma data from Cluster and TC-1 and geomagnetic data to study the geomagnetic signatures of current wedge produced by fast-flow braking in the plasma sheet. The three fast flows studied here occurred in a very quiet background and were accompanied by no (or weak) particle injections, thus avoiding the influences from other disturbances. All the geomagnetic signatures of a substorm current wedge can be found in geomagnetic signatures of a current system produced by the braking of fast flows, indicating that the fast flows can produce a complete current wedge which contains postmidnight downward and premidnight upward field-aligned currents, as well as a westward electrojet. The Pi2 precursors exist not only at high latitudes but also at midlatitudes. The starting times of midlatitude Pi2 precursors can be identified more precisely than those of high-latitude Pi2 precursors, providing a possible method to determine the starting time of fast flows in their source regions. The AL drop that a bursty bulk flow produces is proportional to its velocity and duration. In three cases, the AL drops are 200 nT, whether a substorm can be triggered depends mainly on the conditions of the braking regions before fast flows. The observations of solar wind before the three fast flows suggest that it is difficult for the fast flows to trigger a substorm when the interplanetary magnetic field Bz of solar wind is weakly southward.

Geomagnetic signatures of current wedge produced by fast flows in a plasma sheet / Jin-Bin Cao, Chunxiao Yan, Malcolm Dunlop, Henri Reme, Iannis Dandouras, Tielong Zhang, Dongmei Yang, Alexey Moiseyev, Stepan I. Solovyev, Z. Q. Wang, A. Leonoviche, N. Zolotukhina, and V. Mishin // Journal of Geophysical Research: Space Physics. – 1978. – 2010 (August), vol. 115, N 8. – P. A08205.

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37.
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Авторы:
Solovyev Stepan Ivanovich, Moiseyev Aleksey Vladimirovich, Yumoto Kiyohumi, Engebretson Mark, Du A.
Заглавие: The character of geomagnetic and auroral response to solar wind dynamic pressure variation and the dynamics of particles injected into the magnetosphere

Количество страниц: 4 с.

The character of geomagnetic and auroral response to solar wind dynamic pressure variation and the dynamics of particles injected into the magnetosphere / S. I. Solovyev, A. V. Moiseyev, K. Yumoto, M. Engebretson, A. Du // Physics of auroral phenomena : proceedings of the 29th annual seminar, Apatity, 27 February – 3 March 2006. – 2007. – P. 112-115.

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38.
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Авторы:
Solovyev Stepan Ivanovich, Moiseyev Aleksey Vladimirovich, Engebretson Mark, Yumoto Kiyohumi, Du A.
Заглавие: Geomagnetic sudden impulse characteristics in dependence of the IMF orientation

Количество страниц: 4 с.

Geomagnetic sudden impulse characteristics in dependence of the IMF orientation / S. I. Solovyev, A. V. Moiseyev, M. Engebretson, K. Yumoto, A. Du // Physics of auroral phenomena : proceedings of the 29th annual seminar, Apatity, 27 February – 3 March 2006. – 2007. – P. 116-119.

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39.
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Авторы:
Velichko Vitaly Andreevich, Plotnikov Igor Yakovlevich, Baishev Dmitriy Gavrilievich, Skryabin Nikolay Georgievich, Boroyev Roman Nikolaevich, Moiseyev Aleksey Vladimirovich
Заглавие: Geomagnetic "croshet" as a predictor of an intense storm in November 2004

Количество страниц: 2 с.

Geomagnetic "croshet" as a predictor of an intense storm in November 2004 : [тезисы докладов] / V. A. Velichko, I. Ya. Plotnikov, D. G. Baishev, N. G. Skryabin, R. N. Boroyev, A. V. Moiseyev // Physics of auroral phenomena : 29th annual seminar, 27 February – 3 March 2006 : abstracts. – 2006. – P. 28.

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40.
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Авторы:
Moiseyev Aleksey Vladimirovich, Baishev Dmitriy Gavrilievich, Zolotukhina N. А., Du A., Yumoto Kiyohumi
Заглавие: Features of Pc5 generation in the absence of the high-speed streams and significant changes in solar wind dynamic pressure

Количество страниц: 2 с.

Features of Pc5 generation in the absence of the high-speed streams and significant changes in solar wind dynamic pressure : [тезисы докладов] / A. Moiseyev, D. Baishev, N. Zolotukhina, A. Du, K. Yumoto // Physics of auroral phenomena : 26th annual seminar, 25-28 February 2003 : abstacts. – 2003. – P. 22.

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