Results 91 to 100 of about 9,187 (202)

Self-consistent modelling of the polar thermosphere and ionosphere to magnetospheric convection and precipitation (invited review) [PDF]

It has recently been demonstrated that the dramatic effects of plasma precipitation and convection on the composition and dynamics of the polar thermosphere and ionosphere include a number of strong interactive, or feedback, processes.
Fuller-Rowell, T., Moffett, R., Quegan, S., Rees, D.   +3 more
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Climatology of Thermospheric Winds over the Southern Polar Cap from JBS-FPI Observations

Earth, Planets and Space
This study presents the results from a climatological analysis of thermospheric winds (~ 250 km altitude) in the southern polar cap, based on the first long-sterm ground-based Fabry–Perot Interferometer (FPI) observations at Jang Bogo station (JBS; 80°S ...
Eunsol Kim, Changsup Lee, Young-Bae Ham, Yujin Cho, Geonhwa Jee, Qian Wu   +5 more
doaj   +1 more source

Multi-instrument analysis of medium-scale travelling ionospheric disturbances generated by an intense tropospheric jet-front system with severe convection in Europe in August 2023

Journal of Space Weather and Space Climate
Tropospheric jet-front systems and intense convection are known to be potential sources of atmospheric gravity waves (AGWs), which can propagate upward.
Barta Veronika, Potuznikova Katerina, Knížová Petra Koucká, Chum Jaroslav, Mielich Jens, Guerra Marco, Buresova Dalia, Sivakandan Mani, Verhulst Tobias G. W., Berényi Kitti A., Altadill David, Segarra Antoni, Kouba Daniel, Mosna Zbysek, Buzás Attila, Spogli Luca, Urbář Jaroslav, de Paula Víctor, Ventriglia Vincenzo, Belehaki Anna   +19 more
doaj   +1 more source

Effects of different convection models upon the high‐latitude ionosphere

Journal of Geophysical Research: Space Physics, 1986
It is well known that convection electric fields have an important effect on the ionosphere at high latitudes and that a quantitative understanding of their effect requires a knowledge of plasma convection over the entire high‐latitude region. Two empirical models of plasma convection that have been proposed for use in studying the ionosphere are the ...
Rasmussen, C. E., Schunk, Robert W., Sojka, Jan Josef   +2 more
openaire   +4 more sources

Plasma convection in the Earth’s magnetosphere and ionosphere during substorms

Advances in Space Research, 2006
The empirical field-aligned current (FAC) and plasma convection model on which this paper is based describes the four phases of a typical substorm. 2D maps of the ionospheric electric potential (U) are shown here for the first time for each of these phases.
Förster, M., Mishin, V., Stauning, P., Watermann, J., Saifudinova, T., Bazarzhapov, A.   +5 more
openaire   +5 more sources

Kinetic response of ionospheric ions to onset of auroral electric fields [PDF]

Examination of the exact analytic solution of a kinetic model of collisional interaction of ionospheric fions with atmospheric neutrals in the Bhatnagar-Gross-Krook approximation, shows that the onset of intense auroral electric fields in the topside ...
Chiu, Y. T., Kan, J. R.
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Ionospheric convection during the magnetic storm of 20-21 March 1990

Annales Geophysicae
We report on the response of high-latitude ionospheric convection during the magnetic storm of March 20-21 1990. IMP-8 measurements of solar wind plasma and interplanetary magnetic field (IMF), ionospheric convection flow measurements from the Wick and ...
J. R. Taylor, T. K. Yeoman, M. Lester, M. J. Buonsanto, J. L. Scali, J. M. Ruohoniemi, J. D. Kelly   +6 more
doaj  

Solar-wind control of the extent of planetary ionospheres [PDF]

In our solar system there are at least four magnetic planets: Earth, Jupiter, Mercury, and Mars; while at least one planet, Venus, appears to be essentially nonmagnetic. The ionospheres of the magnetic planets are imbedded in their magnetosphere and thus
Bauer, S. J.
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Observations of three-dimensional ionospheric plasma properties in a space hurricane

Frontiers in Astronomy and Space Sciences
The space hurricane is a newly discovered large-scale three-dimensional magnetic vortex structure that spans the polar ionosphere and magnetosphere.
Sheng Lu, Zan-Yang Xing, Qing-He Zhang, Qing-He Zhang, Yongliang Zhang, Kjellmar Oksavik, Kjellmar Oksavik, L. R. Lyons, Michael Lockwood, Yu-Zhang Ma, Xiang-Yu Wang, N. Balan, Hui-Gen Yang, Hui-Gen Yang, Yong Wang, Zhong-Xin Deng, Tong Xu, Shu-Ji Sun   +17 more
doaj   +1 more source

A new model for the substorm growth phase [PDF]

, 2014
Thesis (Ph.D.) University of Alaska Fairbanks, 2014.The physics of geomagnetic substorms has been under debate for a long time. In particular, the formation of a thin current sheet (CS) is a central unresolved problem because it provides the magnetotail ...
Hsieh, Min-Shiu, 謝旻秀
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