Results 21 to 30 of about 34,661 (210)

Effects of energetic electrons on the electrodynamics in the ionosphere [PDF]

, 2004
International audienceFrom the observations by the PIXIE and UVI cameras on board the Polar satellite, we derive global maps of the precipitating electron energy spectra from less than 1keV to 100keV.
Rosenberg, T. J., D. L. Detrick, Aksnes, A., Detrick, D.L., Rosenberg, T.J., A. Aksnes, J. Stadsnes, N. Østgaard, G. A. Germany, Østgaard, N., T. J. Rosenberg, Lu, G., Schulz, M, M. Schulz, Detrick, D. L., Stadsnes, J., Germany, G. A., R. R. Vondrak, Vondrak, R.R., Vondrak, R. R., Germany, G.A., G. Lu   +21 more
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Probing the high latitude ionosphere from ground-based observations: The state of current knowledge and capabilities during IPY (2007-2009) [PDF]

, 2008
During the International Polar Year (IPY), one area of great interest is co-coordinated, multi-instrument probing of the ionosphere at high latitudes. This region is important not only for the applications that rely upon our understanding of it, but also
Freeman, M., Mitchell, C. N., Liu, R., Luntama, J.-P., Alfonsi, Lucilla, Kauristie, Kirsti, Cilliers, Pierre, Correia, Emilia, Zherebtsov, G. A., Mitchell, C.N., Freeman, Mervyn, Mitchell, Cathryn N., Kavanagh, Andrew J., Alfonsi, Lu., Zherebtsov, G.A., Kauristie, K., Freeman, M.P., Amata, E., Kavanagh, A.J., Liu, Ruiyuan, Correia, E., Amata, Ermanno, Kavanagh, A. J., Luntama, Juha-Pekka, Alfonsi, L., Luntama, J-P., Cilliers, P.   +26 more
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Method to locate the polar cap boundary in the nightside ionosphere and application to a substorm event [PDF]

, 2006
International audienceIn this paper we describe a new method to be used for the polar cap boundary (PCB) determination in the nightside ionosphere by using the EISCAT Svalbard radar (ESR) field-aligned measurements by the 42-m antenna and southward ...
A. T. Aikio, O. Amm, Amm, Olaf, Aikio, A.T., Aikio, Anita T., Aikio, A. T., A. Kozlovsky, Kozlovsky, Alexander, Pitkänen, Timo, Pitkänen, T., Amm, O., Kozlovsky, A., T. Pitkänen   +12 more
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Development of Methodological, Hardware, and Software of the Incoherent Scatter Radar of Institute of Ionosphere (Kharkiv, Ukraine) [PDF]

International Journal of Electronics and Telecommunications, 2023
We present the met determinate hodological features and new subsystem for receiving, digitizing and processing signals at the intermediate frequency of the incoherent scatter (IS) radar.
Leonid Emelyanov, Artem Miroshnikov
doaj   +1 more source

The First Inventory of Rock Glaciers in the Zhetysu Alatau: The Aksu and Lepsy River Basins

Remote Sensing, 2022
While rock glaciers (RGs) are widespread in the Zhetysu Alatau mountain range of Tien Shan (Kazakhstan), they have not yet been systematically investigated.
Azamat Kaldybayev, Nurmakhambet Sydyk, Alena Yelisseyeva, Aibek Merekeyev, Serik Nurakynov, Kanat Zulpykharov, Gulnura Issanova, Yaning Chen   +7 more
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First simultaneous observations of flux transfer events at the high-latitude magnetopause by the cluster spacecraft and pulsed radar signatures in the conjugate ionosphere by the CUTLASS and EISCAT radars [PDF]

, 2001
Cluster magnetic field data are studied during an outbound pass through the post-noon high-latitude magnetopause region on 14 February 2001. The onset of several minute perturbations in the magnetospheric field was observed in conjunction with a ...
A. Balogh (7591361), S. W. H. Cowley, H. Khan, Balogh, A., Georgescu, E., J. A. Davies (4412452), T. K. Yeoman (7601525), J. A. Wild (7591442), T. K. Yeoman, M. W. Dunlop, Stanley William Herbert Cowley (7627505), G. Provan, Dunlop, M. W., Yeoman, T. K., S. E. Milan (7594526), E. Georgescu, J. A. Davies, Fornacon, K.-H., G. Provan (7602020), M. W. Dunlop (7591493), H. Khan (723527), Milan, S. E., Provan, G., Lester, M., K.-H. Fornaçon, K. H. Fornacon (7612235), Wild, J. A., Khan, H., J. A. Wild, M. Lester, A. Balogh, M. Lester (7589660), Davies, J. A., S. E. Milan, Cowley, S. W. H., E. Georgescu (7612238)   +35 more
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The International Reference Ionosphere - A Model Ionosphere

Eos, 2023
An accurate and reliable description of Earth’s ionosphere is of critical importance because of our increased reliance on satellite technology and the significant impact the ionosphere has on it.
openaire   +1 more source

Production of small-scale Alfvén waves by ionospheric depletion, nonlinear magnetosphere-ionosphere coupling and phase mixing [PDF]

, 2013
The authors acknowledge the International Space Science Institute (Switzerland) for funding the program that inspired this work. AJBR is grateful to the Royal Commission for the Exhibition of 1851 for present support and acknowledges an STFC studentship ...
Russell, A. J.B., Wright, A. N., Streltsov, A. V., Wright, A.N., A. J. B. Russell, Russell, A.J.B., A. N. Wright, Russell, A. J. B., A. V. Streltsov, Streltsov, A.V.   +9 more
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Disturbances of Doppler Frequency Shift of Ionospheric Signal and of Telluric Current Caused by Atmospheric Waves from Explosive Eruption of Hunga Tonga Volcano on January 15, 2022

Atmosphere, 2023
After the explosive eruption of the Hunga Tonga volcano on 15 January 2022, disturbances were observed at a distance of about 12,000 km in Northern Tien Shan and regarded variations in the atmospheric pressure, in telluric current, and in the Doppler ...
Nazyf Salikhov, Alexander Shepetov, Galina Pak, Vladimir Saveliev, Serik Nurakynov, Vladimir Ryabov, Valery Zhukov   +6 more
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An extended TRANSCAR model including ionospheric convection: Simulation of EISCAT observations using input from AMIE [PDF]

, 2005
International audienceThe TRANSCAR ionospheric model was extended to account for the convection of the magnetic field lines in the auroral and polar ionosphere.
Lathuillere, C., Fontanari, J., J. Fontanari, C. Lathuillère, B. Emery, Alcaydé, D., Blelly, P.-L., Emery, B., P.-L. Blelly, D. Alcaydé, J. Lilensten, Lilensten, J.   +11 more
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