Results 51 to 60 of about 34,661 (210)

Hydro-Climatic and Multi-Temporal Remote Analysis of Glacier and Moraine Lake Changes in the Ile-Alatau Mountains (1955–2024), Northern Tien Shan

Atmosphere
High-mountain regions such as the Ile-Alatau range of the Northern Tien Shan are highly sensitive to climatic fluctuations, where even minor variations in temperature and precipitation significantly influence glacier mass balance and hydrology.
Gulnara Iskaliyeva, Aibek Merekeyev, Nurmakhambet Sydyk, Alima Azamatkyzy Amangeldi, Bauyrzhan Abishev, Zhaksybek Baygurin   +5 more
doaj   +1 more source

Solar wind-magnetosphere-ionosphere interactions in the earth's plasma environment [PDF]

, 2003
The properties of the Earth’s coupled magnetosphere-ionosphere system are dominated by its interaction with the solar wind plasma, mediated by magnetic reconnection processes at the magnetopause interface.
McWilliams, K. A., Davies, J. A., Sandholt, P. E., Cowley, S. W. H., Milan, S. E., Provan, G., Lester, M., Wild, J. A., Khan, H., Yeoman, T. K., Grocott, A.   +10 more
core  

The Influence of Sudden Stratospheric Warming on the Development of Ionospheric Storms: The Alma-Ata Ground-Based Ionosonde Observations

Atmosphere
This paper examines the response of the ionosphere to the impact of two moderate geomagnetic storms observed on January 17 and 26–27, 2013, under conditions of strong sudden stratospheric warming.
Galina Gordiyenko, Artur Yakovets, Yuriy Litvinov, Alexey Andreev   +3 more
doaj   +1 more source

IMF dependence of the open-closed field line boundary in Saturn's ionosphere, and its relation to the UV auroral oval observed by the Hubble Space Telescope [PDF]

, 2007
We study the dependence of Saturn's magnetospheric magnetic field structure on the interplanetary magnetic field (IMF), together with the corresponding variations of the open-closed field line boundary in the ionosphere.
Badman, S. V., S. W. H. Cowley, S. V. Badman, M. S. Blokhina, M. S. Grigoryan, Belenkaya, E. S., V. V. Kalegaev, Grigoryan, M. S., E. S. Belenkaya, I. I. Alexeev, Cowley, S. W. H., Alexeev, I. I., Kalegaev, V. V., Blokhina, M. S.   +13 more
core   +1 more source

Transient plasma injections in the dayside magnetosphere: One-to-one correlated observations by cluster and by SuperDARN [PDF]

, 2004
Conjunctions in the cusp between the four Cluster spacecraft and SuperDARN ground-based radars offer unique opportunities to compare the signatures of transient plasma injections simultaneously in the high-altitude dayside magnetosphere and in the ...
Laakso, H., J.-M. Bosqued, Förster, M., Foerster, M., H. Laakso (7591349), Fontaine, D., Cerisier, J. C., J.-C. Cerisier, A. Marchaudon (7650635), Fontaine, Dominique, J. A. Wild (7591442), Bosqued, J.-M., Décréau, Pierrette, P. M. E. Décréau (7651646), Dunlop, M., Wild, J., M. W. Dunlop, Bosqued, J., Bosqued, J. M., Marchaudon, A., Dunlop, M. W., Cerisier, J., A. Marchaudon, P. M. E. Décréau, M. W. Dunlop (7591493), H. Laakso, Marchaudon, Aurélie, Wild, J. A., J. A. Wild, Décréau, P. M. E., J.-M. Bosqued (7685081), D. Fontaine, M. Förster, Décréau, P., M. Förster (2934723), J.-C. Cerisier (7685078), D. Fontaine (7685084), Cerisier, J.-C.   +37 more
core   +1 more source

Combination of Soviet-Era Surface Gravity and Modern Satellite Data for Geoid Model Computation: A Case Study for Kazakhstan

Computation
Accurate geoid determination is essential for height system unification and for converting Global Navigation Satellite System (GNSS) ellipsoidal heights to orthometric heights.
Daniya Shoganbekova, Asset Urazaliyev, Serik Nurakynov, Magzhan Kozhakhmetov, Nailya Zhaksygul, Roman Sermiagin   +5 more
doaj   +1 more source

Methods and Algorithms of Subsurface Holographic Sounding

Remote Sensing, 2022
In our experiments, we develop and test portable multi-element receiver antenna arrays, electrically scanned in order to immediately obtain a recognizable image of subsurface objects.
A. V. Popov, A. E. Reznikov, A. I. Berkut, D. E. Edemsky, P. A. Morozov, I. V. Prokopovich   +5 more
doaj   +1 more source

An analysis of pump-induced artificial ionospheric ion upwelling at EISCAT [PDF]

, 2010
Ion outflow from the high-latitude ionosphere is a well-known phenomenon and an important source of plasma for the magnetosphere. It is also well known that pumping the ionosphere with high-power high-frequency radio waves causes electron heating.
Kosch, M.J., Ogawa, Y., Y. Ogawa, Nozawa, S., Fujii, R., M. T. Rietveld, M. J. Kosch, S. Nozawa, R. Fujii, Rietveld, M.T.   +9 more
core   +1 more source

Hybrid Geoid Modelling with AI Enhancements: A Case Study for Almaty, Kazakhstan

Algorithms
Developing a high-precision regional geoid model is a key element in modernizing Kazakhstan’s vertical reference framework and ensuring consistent GNSS-based height determination. However, the mountainous terrain of southeastern Kazakhstan, characterized
Asset Urazaliyev, Daniya Shoganbekova, Serik Nurakynov, Magzhan Kozhakhmetov, Nailya Zhaksygul, Roman Sermiagin   +5 more
doaj   +1 more source

High-latitude observations of impulse-driven ULF pulsations in the ionosphere and on the ground [PDF]

, 2003
International audienceWe report the simultaneous observation of 1.6?1.7 mHz pulsations in the ionospheric F-region with the CUTLASS bistatic HF radar and an HF Doppler sounder, on the ground with the IMAGE and SAMNET magnetometer arrays, and in the ...
Menk, F. W., Lester, M., Honary, F., Wright, D. M., F. W. Menk, M. Lester, T. K. Yeoman (7601525), F. Honary (7604621), T. K. Yeoman, M. Lester (7589660), D. M. Wright (7583069), D. M. Wright, F. Honary, F. W. Menk (7675571), Yeoman, T. K.   +14 more
core   +1 more source