Littérature scientifique sur le sujet « Equatorial ionospheric »
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Articles de revues sur le sujet "Equatorial ionospheric"
Bhattacharyya, Archana. « Equatorial Plasma Bubbles : A Review ». Atmosphere 13, no 10 (8 octobre 2022) : 1637. http://dx.doi.org/10.3390/atmos13101637.
Texte intégralBiktash, L. Z. « Role of the magnetospheric and ionospheric currents in the generation of the equatorial scintillations during geomagnetic storms ». Annales Geophysicae 22, no 9 (23 septembre 2004) : 3195–202. http://dx.doi.org/10.5194/angeo-22-3195-2004.
Texte intégralOnohara, A. N., I. S. Batista et H. Takahashi. « The ultra-fast Kelvin waves in the equatorial ionosphere : observations and modeling ». Annales Geophysicae 31, no 2 (7 février 2013) : 209–15. http://dx.doi.org/10.5194/angeo-31-209-2013.
Texte intégralTsunomura, S. « Numerical analysis of global ionospheric current system including the effect of equatorial enhancement ». Annales Geophysicae 17, no 5 (31 mai 1999) : 692–706. http://dx.doi.org/10.1007/s00585-999-0692-2.
Texte intégralRishbeth, H. « The equatorial F-layer : progress and puzzles ». Annales Geophysicae 18, no 7 (31 juillet 2000) : 730–39. http://dx.doi.org/10.1007/s00585-000-0730-6.
Texte intégralKobea, A. T., C. Amory-Mazaudier, J. M. Do, H. Lühr, E. Houngninou, J. Vassal, E. Blanc et J. J. Curto. « Equatorial electrojet as part of the global circuit : a case-study from the IEEY ». Annales Geophysicae 16, no 6 (30 juin 1998) : 698–710. http://dx.doi.org/10.1007/s00585-998-0698-1.
Texte intégralLe Roux, Y. M., J. Ménard, J. P. Jolivet et P. J. Davy. « <i>Letter to the Editor:</i> ; SCIPION, a new flexible ionospheric sounder in Senegal ». Annales Geophysicae 16, no 6 (30 juin 1998) : 738–42. http://dx.doi.org/10.1007/s00585-998-0738-x.
Texte intégralSahai, Y., P. R. Fagundes, J. R. Abalde, A. A. Pimenta, J. A. Bittencourt, Y. Otsuka et V. H. Rios. « Generation of large-scale equatorial F-region plasma depletions during lowrange spread-F season ». Annales Geophysicae 22, no 1 (1 janvier 2004) : 15–23. http://dx.doi.org/10.5194/angeo-22-15-2004.
Texte intégralWang, Hai-Ning, Qing-Lin Zhu, Xiang Dong, Dong-Sheng Sheng, Yong-Feng Zhi, Chen Zhou et Bin Xu. « A Novel Technique for High-Precision Ionospheric VTEC Estimation and Prediction at the Equatorial Ionization Anomaly Region : A Case Study over Haikou Station ». Remote Sensing 15, no 13 (4 juillet 2023) : 3394. http://dx.doi.org/10.3390/rs15133394.
Texte intégralKulyamin, Dmitry V., Pavel A. Ostanin et Valentin P. Dymnikov. « INM-IM : INM RAS Earth ionosphere F region dynamical model ». Russian Journal of Numerical Analysis and Mathematical Modelling 37, no 6 (1 décembre 2022) : 349–62. http://dx.doi.org/10.1515/rnam-2022-0028.
Texte intégralThèses sur le sujet "Equatorial ionospheric"
Chapagain, Narayan P. « Dynamics of Equatorial Spread F Using Ground-Based Optical and Radar Measurements ». DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/897.
Texte intégralMohd, Ali Aiffah. « GNSS in aviation : ionospheric threats at low latitudes ». Thesis, University of Bath, 2018. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.761026.
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.
Khadka, Sovit M. « Multi-diagnostic Investigations of the Equatorial and Low-latitude Ionospheric Electrodynamics and Their Impacts on Space-based Technologies ». Thesis, Boston College, 2018. http://hdl.handle.net/2345/bc-ir:108001.
Texte intégralThesis advisor: Dr. Cesar E. Valladares
The equatorial and low-latitude ionosphere of the Earth exhibits unique features on its structuring, coupling, and electrodynamics that offer the possibility to forecast the dynamics and fluctuations of ionospheric plasma densities at later times. The scientific understanding and forecasting of ionospheric plasma are necessary for several practical applications, such as for mitigating the adverse effects of space weather on communication, navigation, power grids, space mission, and for various scientific experiments and applications. The daytime equatorial electrojet (EEJ), equatorial ionization anomaly (EIA), as well as nighttime equatorial plasma bubble (EPB) and plasma blobs are the most prominent low-latitude ionospheric phenomena. This dissertation focuses on the multi-diagnostic study of the mechanism, properties, abnormalities, and interrelationships of these phenomena to provide significant contributions to space weather communities from the ground- and space-based measurements. A strong longitudinal, seasonal, day-to-day variability and dependency between EEJ, ExB vertical plasma drift, and total electron content (TEC) in the EIA distribution are seen in the equatorial and low-latitude region. In general, the EEJ strength is stronger in the west coast of South America than in its east coast. The variability of the EEJ in the dayside ionosphere significantly affects the ionospheric electron density variation, dynamics of the peak height of F2-layer, and TEC distributions as the EEJ influences the vertical transport mechanism of the ionospheric plasma. The eastward electric field (EEF) and the neutral wind play a decisive role in controlling the actual configuration of the EIA. The trans-equatorial neutral wind profile calculated using data from the Second-generation, Optimized, Fabry-Perot Doppler Imager (SOFDI) located near the geomagnetic equator and a physics-based numerical model, LLIONS (Low-Latitude IONospheric Sector) give new perspectives on the effects of daytime meridional neutral winds on the consequent evolution of the asymmetry of the equatorial TEC anomalies during the afternoon onwards. The spatial configurations including the strength, shape, amplitude and latitudinal extension of the EIA crests are affected by the EEF associated with the EEJ under undisturbed conditions, whereas the meridional neutral winds play a significant role in the development of their asymmetric structure in the low-latitude ionosphere. Additionally, the SWARM satellite constellation and the ground-based LISN (Low-Latitude Ionospheric Sensor Network) data allow us to resolve the space-time ambiguity of past single-satellite studies and detect the drastic changes that EPBs and plasma blobs undergo on a short time scale. The coordinated quantitative analysis of a plasma density observation shows evidence of the association of plasma blobs with EPBs via an appropriate geomagnetic flux tube. Plasma blobs were initially associated with the EPBs and remained at the equatorial latitude right above the EPBs height, but later were pushed away from geomagnetic equator towards EIA latitudes by the EPB/ depleted flux tubes that grew in volume. Further, there exists a strong correlation between the noontime equatorial electrojet and the GPS-derived TEC distributions during the afternoon time period, caused by vertical E × B drift via the fountain effect. Nevertheless, only a minor correlation likely exists between the peak EEJ and the net postsunset ionospheric scintillation index (S4) greater than 0.2. This study not only searches for a mutual relationship between the midday, afternoon and nighttime ionospheric phenomena but also aims at providing a possible route to improve our space weather forecasting capability by predicting nighttime ionospheric irregularities based on midday measurements at the equatorial and low latitudes
Thesis (PhD) — Boston College, 2018
Submitted to: Boston College. Graduate School of Arts and Sciences
Discipline: Physics
Orford, Nicola Diane. « Behaviour of quiet time ionospheric disturbances at African equatorial and midlatitude regions ». Thesis, Rhodes University, 2018. http://hdl.handle.net/10962/62672.
Texte intégral李若愚 et Yeuk-Yue Tony Li. « The equatorial ionospheric anomaly in East Asia from solar minimun to solar maximum ». Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1993. http://hub.hku.hk/bib/B31211677.
Texte intégralLi, Yeuk-Yue Tony. « The equatorial ionospheric anomaly in East Asia from solar minimum to solar maximum / ». [Hong Kong : University of Hong Kong], 1993. http://sunzi.lib.hku.hk/hkuto/record.jsp?B13597577.
Texte intégralMatamba, Tshimangadzo Merline. « Long-term analysis of ionospheric response during geomagnetic storms in mid, low and equatorial latitudes ». Thesis, Rhodes University, 2018. http://hdl.handle.net/10962/63991.
Texte intégralXu, Dongyang. « BEIDOU AND GPS DUAL CONSTELLATION VECTOR TRACKING DURING IONOSPHERE SCINTILLATION AT EQUATORIAL REGION ». Miami University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=miami1407512226.
Texte intégralGalmiche, Aurélien. « Modélisation de la scintillation ionosphérique en zone équatoriale : application à l'inversion des signaux GNSS pour la caractérisation de la turbulence ». Thesis, Toulouse 3, 2019. http://www.theses.fr/2019TOU30053.
Texte intégralThe ionosphere is an ionized medium, into which the spatio-temporal electronic density variations disrupt the electromagnetic waves propagation. The turbulent ionospheric plasma is in particular linked to rapid amplitude and phase fluctuations of the radio electric signals: this is the ionospheric scintillation phenomenon. Especially around the equatorial latitudes, systems needing great accuracy, availability and measurement integrity are particularly sensitive to its effects. This is the case of the positioning systems using the GNSS technology. The aim of this thesis is to exploit insightly the ionospheric scintillation effects on the signal in order to propose a turbulent ionosphere's characteristics sounding through GNSS measurements inversion. At first, the specificities of the ionosphere's plasma dynamics accounting for the scintillation effects are reminded. Then, from a spectral description of the electronic density's turbulent fluctuations, an analytic and a numeric model of the transionospheric propagation are introduced. They are completed by considering the GNSS receiver. This step finalizes the direct problem's modelization. A new GNSS data inversion algorithm is then come up with. Its intensive application to the SAGAIE database (collected in equatorial Africa) shows the invers approach's capacity to return various parameters describing the ionospheric turbulences
Livres sur le sujet "Equatorial ionospheric"
McKinstry, John W. A comparison of trans-equatorial ionosphere propagation predictions from AMBCOM with measured data. Monterey, Calif : Naval Postgraduate School, 1993.
Trouver le texte intégralInternational Reference Ionosphere Workshop on the Description of the Low Latitude and Equatorial Ionosphere in the IRI (2001 São José dos Campos, Brazil). Description of the low latitude and equatorial ionosphere in the international reference ionosphere : Refereed papers from the 2001 International Reference Ionosphere (IRI) Workshop on the Description of the low latitude and equatorial ionosphere in the IRI which was held at the INPE headquarters, São Josédos Campos, Brazil, 25-29 June, 2001. Oxford : Published for The Committee on Space Research [by] Pergamon, 2003.
Trouver le texte intégralUnited States. National Aeronautics and Space Administration., dir. A study of the generation mechanisms of high-latitude and equatorial F-region irregularities using DE-2 data : Semi-annual report, August 1, 1984 - January 31, 1985. [Washington, D.C. ? : National Aeronautics and Space Administration?, 1985.
Trouver le texte intégralSymposium, COSPAR International Scientific. Low and equatorial latitudes in the International Reference Ionosphere (IRI) : Proceedings of the COSPAR International Scientific Symposium held in New Delhi, India, 9-13 January 1995 / edited by K. Rawer ... [et al.]. Oxford, Eng : Published for the Committee on Space Research [by] Pergamon, 1996.
Trouver le texte intégralMukherjee, Shweta, P. K. Purohit et A. K. Gwal. Ionospheric study of Equatorial Anomaly Station. LAP Lambert Academic Publishing, 2012.
Trouver le texte intégralMitra, A. P., Kanti K. Mahajan, D. Bilitza, K. K. Mahajan, A. P. Mitra et K. Rawer. Low and Equatorial Latitudes in the International Reference Ionosphere (IRI). Elsevier Science Pub Co, 1996.
Trouver le texte intégralChapitres de livres sur le sujet "Equatorial ionospheric"
Moldwin, Mark B., et Justin S. Tsu. « Stormtime Equatorial Electrojet Ground-Induced Currents ». Dans Ionospheric Space Weather, 33–40. Hoboken, NJ, USA : John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781118929216.ch3.
Texte intégralDoumbia, Vafi, et Oswald Didier Franck Grodji. « On the Longitudinal Dependence of the Equatorial Electrojet ». Dans Ionospheric Space Weather, 115–25. Hoboken, NJ, USA : John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781118929216.ch10.
Texte intégralHuba, Joseph D. « Effect of Magnetic Declination on Equatorial SpreadFBubble Development ». Dans Ionospheric Space Weather, 255–61. Hoboken, NJ, USA : John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781118929216.ch20.
Texte intégralSomoye, Emmanuel O., Andrew O. Akala, Aghogho Ogwala, Eugene O. Onori, Rasaq A. Adeniji-Adele et Enerst E. Iheonu. « Longitudinal Dependence of Day-to-Day Variability of Critical Frequency of Equatorial Type SporadicE(foEsq) ». Dans Ionospheric Space Weather, 155–62. Hoboken, NJ, USA : John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781118929216.ch13.
Texte intégralFejer, B. G. « Equatorial Ionospheric Electric Fields Associated with Magnetospheric Disturbances ». Dans Solar Wind — Magnetosphere Coupling, 519–45. Dordrecht : Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4722-1_37.
Texte intégralZanetti, L. J., T. A. Potemra, T. Iijima et W. Baumjohann. « Equatorial, Birkeland, and Ionospheric Currents of the Magnetospheric Storm Circuit ». Dans Magnetospheric Substorms, 111–22. Washington, D. C. : American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm064p0111.
Texte intégralChau, Jorge L., Larisa P. Goncharenko, Bela G. Fejer et Han-Li Liu. « Equatorial and Low Latitude Ionospheric Effects During Sudden Stratospheric Warming Events ». Dans Dynamic Coupling Between Earth’s Atmospheric and Plasma Environments, 385–417. New York, NY : Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4614-5677-3_13.
Texte intégralPalit, Sourav. « Numerical Simulation of Equatorial Ionospheric Response to Extra-Terrestrial High Energy Phenomena Using Ion Chemistry Models ». Dans Astrophysics and Space Science Proceedings, 571–84. Cham : Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-94607-8_44.
Texte intégralFaturahman, Agri, Varuliantor Dear, Jiyo, Afrizal Bahar, Asnawi Husin et Rezy Pradipta. « Ionospheric Observation Using Equatorial Atmosphere Radar (EAR) Kototabang for the 26 December 2019 Annular Solar Eclipse Research ». Dans Springer Proceedings in Physics, 287–94. Singapore : Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0308-3_23.
Texte intégralLin, Tao, et Gérard Lachapelle. « Demonstration of Signal Tracking and Scintillation Monitoring Under Equatorial Ionospheric Scintillation with a Multi-Frequency GNSS Software Receiver ». Dans Lecture Notes in Electrical Engineering, 775–86. Berlin, Heidelberg : Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-54737-9_67.
Texte intégralActes de conférences sur le sujet "Equatorial ionospheric"
Mokhtar, M. H., N. A. Rahim, M. Y. Ismail et S. M. Buhari. « Ionospheric Perturbation : A Review of Equatorial Plasma Bubble in the Ionosphere ». Dans 2019 6th International Conference on Space Science and Communication (IconSpace). IEEE, 2019. http://dx.doi.org/10.1109/iconspace.2019.8905970.
Texte intégralNorsuzila Ya'acob, Mahamod Ismail et Mardina Abdullah. « Investigation of the GPS signals ionospheric correction : Ionospheric TEC prediction over equatorial ». Dans 2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications. IEEE, 2007. http://dx.doi.org/10.1109/ictmicc.2007.4448646.
Texte intégralGladek, Yuri C., Jonas Sousasantos, Lucas Salles, Vicente C. Lima Filho, Bruno Vani et Alison de O. Moraes. « GPS Amplitude Fading Due to Ionospheric Scintillation Near the Equatorial Ionospheric Anomaly ». Dans AIAA Scitech 2019 Forum. Reston, Virginia : American Institute of Aeronautics and Astronautics, 2019. http://dx.doi.org/10.2514/6.2019-0057.
Texte intégralMorton, Yu, Harrison Bourne, Mark Carroll, Yu Jiao, Nazelie Kassabian, Steve Taylor, Jun Wang, Dongyang Xu et Hang Yin. « Multi-constellation GNSS observations of equatorial ionospheric scintillation ». Dans 2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS). IEEE, 2014. http://dx.doi.org/10.1109/ursigass.2014.6929773.
Texte intégralXu, Dongyang, et Yu (Jade) Morton. « BeiDou Signal Parameters Characterization During Strong Equatorial Ionospheric Scintillation ». Dans 29th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2016). Institute of Navigation, 2016. http://dx.doi.org/10.33012/2016.14786.
Texte intégralIyer, K. N., M. A. Abdu, J. R. de Souza, M. N. Jivani et B. M. Pathan. « Ionospheric Scintillations At Equatorial And Low Latitudes In India ». Dans 7th International Congress of the Brazilian Geophysical Society. European Association of Geoscientists & Engineers, 2001. http://dx.doi.org/10.3997/2214-4609-pdb.217.419.
Texte intégralYa'acob, Norsuzila, Azita Laily Yusof, Azlina Idris, Darmawaty Mohd Ali, Mohd Tarmizi Ali et Noor Hijjah Mohd Yusof. « Observation of equatorial ionospheric plasma bubbles at peninsular Malaysia ». Dans 2012 IEEE Symposium on Computer Applications and Industrial Electronics (ISCAIE). IEEE, 2012. http://dx.doi.org/10.1109/iscaie.2012.6482107.
Texte intégralMacDougall, John, M. A. Abdu, I. Batista, R. Buriti, P. T. Jayachandran et G. Borba. « Equatorial travelling ionospheric disturbances (TIDs) compared with midlatitude TIDs ». Dans 2011 XXXth URSI General Assembly and Scientific Symposium. IEEE, 2011. http://dx.doi.org/10.1109/ursigass.2011.6050927.
Texte intégralJi, Yifei, Yongsheng Zhang, Qilei Zhang et Dong Zhen. « Elongation Orientation of Equatorial Ionospheric Irregularities in Spaceborne SAR Images ». Dans 2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR). IEEE, 2019. http://dx.doi.org/10.1109/apsar46974.2019.9048370.
Texte intégralNagarajoo, K. « Ionospheric modelling in 3D over the equatorial region using IRI ». Dans 2012 NATIONAL PHYSICS CONFERENCE : (PERFIK 2012). AIP, 2013. http://dx.doi.org/10.1063/1.4803627.
Texte intégralRapports d'organisations sur le sujet "Equatorial ionospheric"
Comberiate, Joseph M. Space-Based Three-Dimensional Imaging of Equatorial Plasma Bubbles : Advancing the Understanding of Ionospheric Density Depletions and Scintillation. Fort Belvoir, VA : Defense Technical Information Center, mars 2012. http://dx.doi.org/10.21236/ada567064.
Texte intégralPakula, W. A., J. A. Klobuchar, D. N. Anderson et P. H. Doherty. Ionospheric Errors at L-Band for Satellite and Re-Entry Object Tracking in the New Equatorial Anomaly Region. Fort Belvoir, VA : Defense Technical Information Center, mai 1990. http://dx.doi.org/10.21236/adp006303.
Texte intégralLiu, Chao-Han. Study of Equatorial Ionospheric Irregularities with ROCSAT- 1/IPEI Data for Assessment of Impacts on Communication/Navigation System (V). Fort Belvoir, VA : Defense Technical Information Center, novembre 2009. http://dx.doi.org/10.21236/ada512634.
Texte intégralSales, Gary S. The Effect of Equatorial Ionospheric Irregularities on the Performance of a South-Looking OTH-B (Over-The-Horiozon-Backscatter) Radar. Fort Belvoir, VA : Defense Technical Information Center, octobre 1987. http://dx.doi.org/10.21236/ada195090.
Texte intégralJenan, R., T. L. Dammalage et A. Kealy. The Influences of Solar Activities on TEC Variations of Equatorial Ionosphere over Sri Lanka. Balkan, Black sea and Caspian sea Regional Network for Space Weather Studies, mars 2020. http://dx.doi.org/10.31401/sungeo.2019.02.05.
Texte intégralJenan, R., T. L. Dammalage et A. Kealy. The Influences of Solar Activities on TEC Variations of Equatorial Ionosphere over Sri Lanka. Balkan, Black sea and Caspian sea Regional Network for Space Weather Studies, mars 2020. http://dx.doi.org/10.31401/sungeo.2020.02.05.
Texte intégralMcDonald, Sarah, et Joseph Huba. An Investigation of the Seasonal Variation of Equatorial Electrodynamics and Scintillation Using a Coupled Atmosphere-Ionosphere Model. Fort Belvoir, VA : Defense Technical Information Center, janvier 2009. http://dx.doi.org/10.21236/ada531093.
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