Results 31 to 40 of about 86,535 (196)

Equatorial Plasma Bubbles: A Review

Atmosphere, 2022
The equatorial plasma bubble (EPB) phenomenon is an important component of space weather as the ionospheric irregularities that develop within EPBs can have major detrimental effects on the operation of satellite-based communication and navigation ...
Archana Bhattacharyya
doaj   +1 more source

Doppler shift simulation of scattered HF signals during the Troms HF pumping experiment on 16 February 1996 [PDF]

, 2002
International audienceComparisons between bistatic scatter measurements and simulation results during the Tromsø HF pumping experiment on 16 February 1996 are made.
N. F. Blagoveshchenska, Moskvin, I. V., Borisova, T., Rietveld, M. T., Kosch, M., B. Thidé, Thidé, B., Rietveld, M., Borisova, T. D., T. D. Borisova, M. T. Rietveld, Moskvin, I., Blagoveshchenskaya, N., Kosch, M. J., M. J. Kosch, Blagoveshchenskaya, N. F., I. V. Moskvin, Blagoveshchenska, N. F.   +17 more
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Daytime F-region irregularity triggered by rocket-induced ionospheric hole over low latitude

Progress in Earth and Planetary Science, 2018
Unexpected daytime F-region irregularities following the appearance of an ionospheric hole have been observed over low latitude. The irregularities developed initially above the F-region peak height (~ 360 km) with a thickness of about 30 km and an east ...
Guozhu Li, Baiqi Ning, M. A. Abdu, Chi Wang, Yuichi Otsuka, Weixing Wan, Jiuhou Lei, Michi Nishioka, Takuya Tsugawa, Lianhuan Hu, Guotao Yang, Chunxiao Yan   +11 more
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Climatology of GPS phase scintillation and HF radar backscatter for the high-latitude ionosphere under solar minimum conditions [PDF]

Annales Geophysicae, 2011
Maps of GPS phase scintillation at high latitudes have been constructed after the first two years of operation of the Canadian High Arctic Ionospheric Network (CHAIN) during the 2008–2009 solar minimum.
P. Prikryl, P. T. Jayachandran, S. C. Mushini, R. Chadwick   +3 more
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Spatial and Temporal Evolution of Different‐Scale Ionospheric Irregularities in Central and East Siberia During the 27–28 May 2017 Geomagnetic Storm

Space Weather, 2020
We present a multi‐instrumental study of ionospheric irregularities of different scales (from tens of centimeters to few kilometers) observed over the Central and East Siberia, Russia, during a moderate‐to‐strong geomagnetic storm on 27–28 May 2017. From
V. B. Ovodenko, M. V. Klimenko, I. E. Zakharenkova, A. V. Oinats, D. S. Kotova, A. V. Nikolaev, I. V. Tyutin, D. D. Rogov, K. G. Ratovsky, D. V. Chugunin, P. A. Budnikov, J. C. Coxon, B. J. Anderson, A. A. Chernyshov   +13 more
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On the factors controlling occurrence of F-region coherent echoes [PDF]

, 2002
International audienceSeveral factors are known to control the HF echo occurrence rate, including electron density distribution in the ionosphere (affecting the propagation path of the radar wave), D-region radio wave absorption, and ionospheric ...
T. Ogawa, S. Nozawa, A. V. Koustov, D. Andre (7667897), Milan, S.E., D. W. Danskin, Nozawa, S., T. Ogawa (4008053), S. E. Milan (7594526), N. Nishitani, D. Andre, Milan, S. E., Lester, M., S. Nozawa (7672178), D. W. Danskin (7613489), N. Nishitani (7672181), Danskin, D. W., Ogawa, T., M. Lester, A. V. Koustov (7613492), M. Lester (7589660), Andre, D., S. E. Milan, Koustov, A.V., Koustov, A. V., Nishitani, N., Danskin, D.W.   +26 more
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New advantages of the combined GPS and GLONASS observations for high-latitude ionospheric irregularities monitoring: case study of June 2015 geomagnetic storm

Earth, Planets and Space, 2017
Monitoring, tracking and nowcasting of the ionospheric plasma density disturbances using dual-frequency measurements of the Global Positioning System (GPS) signals are effectively carried out during several decades.
Iurii Cherniak, Irina Zakharenkova
doaj   +1 more source

Mapping ionospheric backscatter measured by the SuperDARN HF radars - part 2: Assessing SuperDARN virtual height models [PDF]

, 2008
The Super Dual Auroral Radar Network (SuperDARN) network of HF coherent backscatter radars form a unique global diagnostic of large-scale ionospheric and magnetospheric dynamics in the northern and southern hemispheres.
T. R. Robinson (7590257), A. Senior, T. J. T. Karhunen (7594313), T. J. T. Karhunen, Chisham, G., Dhillon, R. S., Senior, A., T. K. Yeoman, R. S. Dhillon, L. J. Baddeley (7590143), Dhillion, R. S., D. M. Wright, A. Senior (3255282), R. S. Dhillon (7594310), Karhunen, T. J. T., Yeoman, T. K., Tim K. Yeoman (7583066), G. Chisham, L. J. Baddeley, Robinson, T. R., Wright, D. M., D. M. Wright (7583069), Baddeley, L. J., T. R. Robinson, G. Chisham (7594307)   +24 more
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GPS TEC Fluctuations in the Low and High Latitudes During the 2015 St. Patrick`s Day Storm [PDF]

Journal of Astronomy and Space Sciences, 2017
As a part of collaborative efforts to understand ionospheric irregularities, the Korea ionospheric scintillation sites (KISS) network has been built based on global positioning system (GPS) receivers with sampling rates higher than 1 Hz.
Jong-Kyun Chung, Junseok Hong, Sung-Moon Yoo, Jeong-Han Kim, Geonhwa Jee, Valery V. Hegai   +5 more
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The climatology of ionospheric plasma bubbles and irregularities over Brazil [PDF]

Annales Geophysicae, 2005
In this paper, we examine ionospheric plasma depletions (or bubbles) and irregularities observed by photometers and a ground-based receiver of the global positioning system (GPS) both located in Brazil, South America.
F. D. Chu, F. D. Chu, J. Y. Liu, J. Y. Liu, H. Takahashi, J. H. A. Sobral, M. J. Taylor, A. F. Medeiros   +7 more
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