Littérature scientifique sur le sujet « Ionospheric Signatures »
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Articles de revues sur le sujet "Ionospheric Signatures"
Wright, D. M., T. K. Yeoman et J. A. Davies. « A comparison of EISCAT and HF Doppler observations of a ULF wave ». Annales Geophysicae 16, no 10 (31 octobre 1998) : 1190–99. http://dx.doi.org/10.1007/s00585-998-1190-7.
Texte intégralLockwood, M., et S. K. Morley. « A numerical model of the ionospheric signatures of time-varying magneticreconnection : I. ionospheric convection ». Annales Geophysicae 22, no 1 (1 janvier 2004) : 73–91. http://dx.doi.org/10.5194/angeo-22-73-2004.
Texte intégralWright, D. M., T. K. Yeoman et P. J. Chapman. « High-latitude HF Doppler observations of ULF waves. 1. Waves with large spatial scale sizes ». Annales Geophysicae 15, no 12 (31 décembre 1997) : 1548–56. http://dx.doi.org/10.1007/s00585-997-1548-2.
Texte intégralWild, J. A., S. E. Milan, S. W. H. Cowley, M. W. Dunlop, C. J. Owen, J. M. Bosqued, M. G. G. T. Taylor et al. « Coordinated interhemispheric SuperDARN radar observations of the ionospheric response to flux transfer events observed by the Cluster spacecraft at the high-latitude magnetopause ». Annales Geophysicae 21, no 8 (31 août 2003) : 1807–26. http://dx.doi.org/10.5194/angeo-21-1807-2003.
Texte intégralPryse, S. E., A. M. Smith, I. K. Walker et L. Kersley. « Multi-instrument study of footprints of magnetopause reconnection in the summer ionosphere ». Annales Geophysicae 18, no 9 (30 septembre 2000) : 1118–27. http://dx.doi.org/10.1007/s00585-000-1118-3.
Texte intégralNeudegg, D. A., S. W. H. Cowley, S. E. Milan, T. K. Yeoman, M. Lester, G. Provan, G. Haerendel et al. « A survey of magnetopause FTEs and associated flow bursts in the polar ionosphere ». Annales Geophysicae 18, no 4 (30 avril 2000) : 416–35. http://dx.doi.org/10.1007/s00585-000-0416-0.
Texte intégralStocker, A. J., N. F. Arnold et T. B. Jones. « The synthesis of travelling ionospheric disturbance (TID) signatures in HF radar observations using ray tracing ». Annales Geophysicae 18, no 1 (31 janvier 2000) : 56–64. http://dx.doi.org/10.1007/s00585-000-0056-4.
Texte intégralThorolfsson, A., J. C. Cerisier, M. Lockwood, P. E. Sandholt, C. Senior et M. Lester. « Simultaneous optical and radar signatures of poleward-moving auroral forms ». Annales Geophysicae 18, no 9 (30 septembre 2000) : 1054–66. http://dx.doi.org/10.1007/s00585-000-1054-2.
Texte intégralBerry, S. T., L. Kersley, J. Moen et W. F. Denig. « Ionospheric signatures of magnetospheric boundaries in the post-noon sector ». Annales Geophysicae 18, no 1 (31 janvier 2000) : 74–80. http://dx.doi.org/10.1007/s00585-000-0074-2.
Texte intégralProvan, G., et T. K. Yeoman. « Statistical observations of the MLT, latitude and size of pulsed ionospheric flows with the CUTLASS Finland radar ». Annales Geophysicae 17, no 7 (31 juillet 1999) : 855–67. http://dx.doi.org/10.1007/s00585-999-0855-1.
Texte intégralThèses sur le sujet "Ionospheric Signatures"
McWilliams, Kathryn Anne. « Ionospheric signatures of dayside reconnection processes ». Thesis, University of Leicester, 2001. http://hdl.handle.net/2381/30652.
Texte intégralBorderick, James David. « Ionospheric signatures of ultra low frequency waves ». Thesis, University of Leicester, 2011. http://hdl.handle.net/2381/9170.
Texte intégralNorton, Andrew David. « Analysis of Ionospheric Data Sets to Identify Periodic Signatures Matching Atmospheric Planetary Waves ». Thesis, Virginia Tech, 2021. http://hdl.handle.net/10919/101791.
Texte intégralMaster of Science
The thermosphere and ionosphere are impacted by many sources. The sun and the magnetosphere externally impact this system. Planetary waves, which originate in the lower atmosphere, internally impact this system. This interaction leads to periodic signatures in the ionosphere that reflect periodic signatures seen in the lower atmosphere, the sun and the magnetosphere. This study identifies these times of similar oscillations in the neutral atmosphere, the ionosphere, and the sun, in order to characterize these interactions. Events are cataloged through wavelet analysis and thresholding techniques. Using a time-span of 17 years, trends are identified using histograms and percentages. From these trends, the characteristics of this coupling can be concluded. This study is meant to confirm the theory and provide new insights that will hopefully lead to further investigation through modeling. The goal of this study is to gain a better understanding of the role that planetary waves have on the interaction of the atmosphere and the ionosphere.
Schlatter, Nicola. « Radar Signatures of Auroral Plasma Instability ». Doctoral thesis, KTH, Rymd- och plasmafysik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-160894.
Texte intégralQC 20150303
Aminaei, Amin. « Characteristics of night time absorption spike events as signatures of magnetosphere ionosphere (M-I) coupling ». Thesis, Lancaster University, 2007. http://eprints.lancs.ac.uk/6764/.
Texte intégralKoen, Etienne Johannes. « Ionospheric signatures of solar flares ». Thesis, 2009. http://hdl.handle.net/10413/8339.
Texte intégralThesis (M.Sc.)-University of KwaZulu-Natal, Westville, 2009.
FU-YUAN, CHANG, et 張富淵. « A Study on Ionospheric Neutral Wind Signatures by Using FORMOSAT-3/COSMIC ». Thesis, 2017. http://ndltd.ncl.edu.tw/handle/76chw3.
Texte intégral國立中央大學
太空科學研究所
105
The Earth’s upper atmosphere, comprised of the thermosphere and ionosphere, is where neutral and charged particles interact causing complicated physical processes. The ionospheric electron density is highly variable with the altitude, latitude, longitude, local time, season, solar cycle. This dissertation shows the investigation of the nighttime features from the coupling between the ionosphere and thermospheric neutral wind. Two interesting phenomena associated with the electrodynamic processes are examined, which include (1) The Weddell Sea Anomaly (WSA) in southern mid to high-latitude and Siberia-Yakutsk Anomaly (SYA) in northern mid-latitude. The increasing anomalies of electron density are most prominent over the Weddell Sea region in the southern hemisphere and Siberia and Yakutsk areas in the northern hemisphere during local summer nighttime; and (2) The Plasma Depletion Bays (PDBs) at equatorial/low-latitude. These features of the electron density and TIMED/GUVI 135.6nm airglow emission are observed at the evening/night hours near magnetic equator in three longitude regions, North Atlantic, India Ocean, and Southeast Asia during May. Six microsatellites of the joint Taiwan-US satellite constellation mission, termed FORMOSAT-3/COSMIC (F3/C), were successfully launched in to a circle low Earth orbit at 01:40 UTC on 15 April 2006. Each satellite houses a GPS occultation experiment payload globally deriving the vertical electron density profile in the ionosphere. This constellation daily provides instantly more than 2000 profiles from 90 to 800 km altitude. Dense global electron density probing brings a new era of studying the space weather in the ionosphere. In this dissertation work, the three-dimensional (3-D) plasma density structure constructed by electron density profiles from F3/C satellites are employed to study the diurnal, seasonal, latitudinal, and altitudinal variations of these anomalies and bay features. The results show that the WSA and SYA features occur prominently at about 300 km altitude, as well as yield the eastward shift of a single-peak plasma density along the WSA latitudes and a double-peak along the SYA latitudes during the period of 2007-2016. The thermospheric meridional and zonal winds simulated by Horizontal Wind Model 1993 (HWM93) is applied to interpret the plasma motions along the magnetic field lines associated with the WSA and SYA anomaly features. Results indicate that the meridional and vertical components of magnetic meridional wind can be responsible for the eastward shift of WSA single-peak and SYA double-peak plasma density. In fact, the WSA and SYA features constantly appear in whole day and all year round. The PDB structures in the F3/C electron density prominently appear at 275 km altitude in the equatorial/low ionosphere. Three PDBs curving in the northern hemisphere around the magnetic equator situate in regions 30°–60°W (North Atlantic), 30°–110°E (India Ocean), and 120°–160°E (Southeast Asia) from April-September, while one PDB curving in the southern hemisphere appears in 80°–150°W (Southwest America) from October-March. A detailed study on the F3/C 3-D electron density structure shows that the four PDBs are intense mainly below the ionospheric peak density layer (~350 km altitude) in whole day and all seasons. A simulation of HWM93 suggests that the trans-equatorial plasma transports induced by the zonal wind result in the PDB features in the nighttime equatorial/low-latitude ionosphere. Blowing of the thermospheric neutral winds play an important role in the formation of the two anomalies and bay features.
Law, Colin Christian. « Observations of magnetic signatures and structure in the dayside ionosphere of Venus ». Thesis, 1993. http://hdl.handle.net/1911/13753.
Texte intégralLivres sur le sujet "Ionospheric Signatures"
Rice University. Space Physics and Astronomy Dept. et United States. National Aeronautics and Space Administration., dir. Final report, entitled, Data reduction and analysis of Pioneer Venus Orbital Ion Mass Spectrometer : NASA grant NAG 2-566, covering the period October 1998 - March 1996. Houston, Tex : Space Physics and Astronomy Dept., Rice University, 1996.
Trouver le texte intégralChapitres de livres sur le sujet "Ionospheric Signatures"
Newell, Patrick T., et David G. Sibeck. « Magnetosheath Fluctuations, Ionospheric Convection and Dayside Ionospheric Transients ». Dans Physical Signatures of Magnetospheric Boundary Layer Processes, 245–61. Dordrecht : Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1052-5_17.
Texte intégralRodger, A. S. « Ionospheric Signatures of Magnetopause Processes ». Dans Polar Cap Boundary Phenomena, 115–25. Dordrecht : Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5214-3_10.
Texte intégralLockwood, M. « Ionospheric Signatures of Pulsed Magnetopause Reconnection ». Dans Physical Signatures of Magnetospheric Boundary Layer Processes, 229–43. Dordrecht : Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1052-5_16.
Texte intégralFriis-Christensen, E. « Terrestrial ionospheric signatures of field-aligned currents ». Dans Physics of Magnetic Flux Ropes, 605–10. Washington, D. C. : American Geophysical Union, 1990. http://dx.doi.org/10.1029/gm058p0605.
Texte intégralFenrich, F. R., C. L. Waters, M. Connors et C. Bredeson. « Ionospheric signatures of ULF waves : Passive radar techniques ». Dans Magnetospheric ULF Waves : Synthesis and New Directions, 259–71. Washington, D. C. : American Geophysical Union, 2006. http://dx.doi.org/10.1029/169gm17.
Texte intégralYeoman, T. K., D. M. Wright et L. J. Baddeley. « Ionospheric signatures of ULF waves : Active radar techniques ». Dans Magnetospheric ULF Waves : Synthesis and New Directions, 273–88. Washington, D. C. : American Geophysical Union, 2006. http://dx.doi.org/10.1029/169gm18.
Texte intégralKnipp, D. J., B. A. Emery et G. Lu. « Application of the Assimilative Mapping of Ionospheric Electrodynamics (AMIE) Procedure to CUSP Identification ». Dans Physical Signatures of Magnetospheric Boundary Layer Processes, 401–20. Dordrecht : Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1052-5_28.
Texte intégralWatanabe, Masakazu, Michael Pinnock, Alan S. Rodger, Natsuo Sato, Hisao Yamagishi, A. Sessai Yukimatu, Raymond A. Greenwald, Jean-Paul Villain et Marc R. Hairston. « Ionospheric Signatures of Distant Tail Reconnection Observed Just Before Substorm Onsets ». Dans Substorms-4, 719–22. Dordrecht : Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-4798-9_150.
Texte intégralLognonné, P. « Seismic Waves from Atmospheric Sources and Atmospheric/Ionospheric Signatures of Seismic Waves ». Dans Infrasound Monitoring for Atmospheric Studies, 281–304. Dordrecht : Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-1-4020-9508-5_10.
Texte intégralOlsen, Nils, et Claudia Stolle. « Magnetic Signatures of Ionospheric and Magnetospheric Current Systems During Geomagnetic Quiet Conditions—An Overview ». Dans Earth's Magnetic Field, 7–27. Dordrecht : Springer Netherlands, 2017. http://dx.doi.org/10.1007/978-94-024-1225-3_2.
Texte intégralActes de conférences sur le sujet "Ionospheric Signatures"
Maheswaran, Veera Kumar, James A. Baskaradas et Sriram Subramanian. « GNSS/GPS Spoofing Detection using Ionospheric Signatures ». Dans 2021 IEEE Indian Conference on Antennas and Propagation (InCAP). IEEE, 2021. http://dx.doi.org/10.1109/incap52216.2021.9726378.
Texte intégralVorobjev, Vyacheslav, et Vladimir Zverev. « Dayside aurora signatures associated with ionospheric travelling twin vortices ». Dans High Latitude Optics, sous la direction de Sergej Leontyev. SPIE, 1993. http://dx.doi.org/10.1117/12.164828.
Texte intégralFasel, G. J., Joseph I. Minow, Roger W. Smith, C. S. Deehr et Lou-Chuang Lee. « Ionospheric signatures of solar-wind magnetosphere interaction in dayside aurora ». Dans High Latitude Optics, sous la direction de Sergej Leontyev. SPIE, 1993. http://dx.doi.org/10.1117/12.164827.
Texte intégralAlmeida, P. D. S. C., C. M. Denardini, H. C. Aveiro, L. C. A. Resende et L. M. Guizelli. « ANALYSIS OF SOLAR TIDAL SIGNATURES IN IONOSPHERIC ELECTRIC CURRENTS OBSERVED BY MAGNETOMETERS ». Dans 11th International Congress of the Brazilian Geophysical Society & EXPOGEF 2009, Salvador, Bahia, Brazil, 24-28 August 2009. Society of Exploration Geophysicists and Brazilian Geophysical Society, 2009. http://dx.doi.org/10.1190/sbgf2009-030.
Texte intégralAlmeida, P. D. S. C., C. M. Denardini, H. C. Aveiro, L. C. A. Resende et L. M. Guizelli. « Analysis Of Solar Tidal Signatures In Ionospheric Electric Currents Observed By Magnetometers ». Dans 11th International Congress of the Brazilian Geophysical Society. European Association of Geoscientists & Engineers, 2009. http://dx.doi.org/10.3997/2214-4609-pdb.195.1841_evt_6year_2009.
Texte intégralHughes, David H. « Modeling the diurnal variation of ionospheric layers via Thom canonical potentials : time-frequency signatures ». Dans International Symposium on Optical Science and Technology, sous la direction de Franklin T. Luk. SPIE, 2002. http://dx.doi.org/10.1117/12.447888.
Texte intégralJansky, Jaroslav, et Victor Pasko. « Charge balance, electric field and ionospheric potential signatures in time dependent global electric circuit model ». Dans 2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS). IEEE, 2014. http://dx.doi.org/10.1109/ursigass.2014.6929973.
Texte intégralHeitmann, Andrew J., Manuel A. Cervera, Robert S. Gardiner-Garden, David A. Holdsworth, Andrew D. MacKinnon, Iain M. Reid et Bruce D. Ward. « Observations and modeling of traveling ionospheric disturbance signatures from an Australian network of oblique angle-of-arrival sounders ». Dans 2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS). IEEE, 2017. http://dx.doi.org/10.23919/ursigass.2017.8105329.
Texte intégralMaurya, Ajeet K., Rajesh Singh, Sushil Kumar, D. V. Phani Kumar et B. Veenadhari. « Waves-like signatures in the D-region ionosphere generated by solar flares ». Dans 2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS). IEEE, 2014. http://dx.doi.org/10.1109/ursigass.2014.6929796.
Texte intégralYue, Wenjue, Bo Peng, Xizhang Wei et Xiang Li. « Ionosphere effect estimation in micro-Doppler signature extraction for P-band radar targets ». Dans 2017 Progress In Electromagnetics Research Symposium - Spring (PIERS). IEEE, 2017. http://dx.doi.org/10.1109/piers.2017.8262052.
Texte intégralRapports d'organisations sur le sujet "Ionospheric Signatures"
Fox, Matthew W., Xiaoqing Pi et Jeffrey M. Forbes. First Principles and Applications-Oriented Ionospheric Modeling Studies, and Wave Signatures in Upper Atmosphere Density,. Fort Belvoir, VA : Defense Technical Information Center, janvier 1997. http://dx.doi.org/10.21236/ada325072.
Texte intégralDea, J. Y., W. Van Bise, E. A. Rauscher et W. M. Boerner. Observations of ELF Signatures Arising from Space Vehicle Disturbances of the Ionosphere. Fort Belvoir, VA : Defense Technical Information Center, mai 1991. http://dx.doi.org/10.21236/ada236563.
Texte intégral