Littérature scientifique sur le sujet « Equatorial plasma bubbles »
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Articles de revues sur le sujet "Equatorial plasma bubbles"
Li, G., B. Ning, L. Liu, W. Wan et J. Y. Liu. « Effect of magnetic activity on plasma bubbles over equatorial and low-latitude regions in East Asia ». Annales Geophysicae 27, no 1 (19 janvier 2009) : 303–12. http://dx.doi.org/10.5194/angeo-27-303-2009.
Texte intégralNarayanan, V. L., S. Gurubaran, K. Shiokawa et K. Emperumal. « Shrinking equatorial plasma bubbles ». Journal of Geophysical Research : Space Physics 121, no 7 (juillet 2016) : 6924–35. http://dx.doi.org/10.1002/2016ja022633.
Texte intégralBhattacharyya, Archana. « Equatorial Plasma Bubbles : A Review ». Atmosphere 13, no 10 (8 octobre 2022) : 1637. http://dx.doi.org/10.3390/atmos13101637.
Texte intégralSingh, Sardul, D. K. Bamgboye, J. P. McClure et F. S. Johnson. « Morphology of equatorial plasma bubbles ». Journal of Geophysical Research : Space Physics 102, A9 (1 septembre 1997) : 20019–29. http://dx.doi.org/10.1029/97ja01724.
Texte intégralPottelette, R., M. Malingre, J. J. Berthelier, E. Seran et M. Parrot. « Filamentary Alfvénic structures excited at the edges of equatorial plasma bubbles ». Annales Geophysicae 25, no 10 (6 novembre 2007) : 2159–65. http://dx.doi.org/10.5194/angeo-25-2159-2007.
Texte intégralChapagain, Narayan P. « Dynamics Ionospheric Plasma Bubbles Measured by Optical Imaging System ». Journal of Institute of Science and Technology 20, no 1 (25 novembre 2015) : 20–27. http://dx.doi.org/10.3126/jist.v20i1.13906.
Texte intégralMakela, J. J., B. M. Ledvina, M. C. Kelley et P. M. Kintner. « Analysis of the seasonal variations of equatorial plasma bubble occurrence observed from Haleakala, Hawaii ». Annales Geophysicae 22, no 9 (23 septembre 2004) : 3109–21. http://dx.doi.org/10.5194/angeo-22-3109-2004.
Texte intégralHuba, J. D., et G. Joyce. « Global modeling of equatorial plasma bubbles ». Geophysical Research Letters 37, no 17 (septembre 2010) : n/a. http://dx.doi.org/10.1029/2010gl044281.
Texte intégralLaakso, Harri, Thomas L. Aggson, Robert F. Pfaff et William B. Hanson. « Downdrafting plasma flow in equatorial bubbles ». Journal of Geophysical Research 99, A6 (1994) : 11507. http://dx.doi.org/10.1029/93ja03169.
Texte intégralNade, D. P., A. K. Sharma, S. S. Nikte, P. T. Patil, R. N. Ghodpage, M. V. Rokade, S. Gurubaran, A. Taori et Y. Sahai. « Zonal velocity of the equatorial plasma bubbles over Kolhapur, India ». Annales Geophysicae 31, no 11 (22 novembre 2013) : 2077–84. http://dx.doi.org/10.5194/angeo-31-2077-2013.
Texte intégralThèses sur le sujet "Equatorial plasma bubbles"
Giday, Nigussie Mezgebe. « Tomographic imaging of East African equatorial ionosphere and study of equatorial plasma bubbles ». Thesis, Rhodes University, 2018. http://hdl.handle.net/10962/63980.
Texte intégralNapiecek, Andrew Webster. « Spatial Resolution of Equatorial Plasma Depletions Using Variable-Range Time-Delay Integration ». Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/90221.
Texte intégralMaster of Science
Equatorial spread-F, also termed plasma bubbles, is a phenomenon that occurs in the equatorial region of Earth’s ionosphere, the charged region of Earth’s atmosphere. Plumes of less dense plasma, the charged material of the Ionosphere, rise through regions of higher density plasma. This causes disturbances to radio signals that travel through this region, which can lead to GPS range errors or loss of signal. ICON is a NASA Explorer mission aimed at, in part, understanding the sources of variability in the ionosphere. One instrument onboard ICON to accomplish this goal is the FarUltraviolet Imager which images airglow in the far-ultraviolet range. During nighttime, the FUV imager can observe plasma bubbles to study the instability and the mechanisms that produce it. This thesis looks at the ability of the variable-range time-delay integration (TDI) algorithm, used to produce images from ICON’s Farultraviolet imager, to spatially resolve the structure and gradients of observed plasma bubbles. However, due to the viewing geometry of ICON’s FUV imager, each pixel across the observed scene experiences a different angular rate of motion blur. The variable-range TDI algorithm removes this non-uniform motion blur by transforming each raw image onto a surface where the spacecraft moves at a constant angular rate with respect to every pixel in the image. Then raw images are integrated together such that the observed scene is not geographically distorted. It was concluded that the TDI process is able to spatially resolve a wide variety of plasma bubbles under various ionospheric conditions and imager configurations.
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
Livres sur le sujet "Equatorial plasma bubbles"
T, Tsunoda Roland, et United States. National Aeronautics and Space Administration., dir. Guest investigator program study : Physics of equatorial plasma bubbles. Menlo Park, CA : SRI International, 1994.
Trouver le texte intégralGravity wave seeding of equatorial plasma bubbles. [Washington, DC : National Aeronautics and Space Administration, 1997.
Trouver le texte intégralChapitres de livres sur le sujet "Equatorial plasma bubbles"
Srisamoodkham, Worachai, Kazuo Shiokawa, Yuichi Otsuka, Kutubuddin Ansari et Punyawi Jamjareegulgarn. « Detecting Equatorial Plasma Bubbles on All-Sky Imager Images Using Convolutional Neural Network ». Dans Communication and Intelligent Systems, 481–87. Singapore : Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2130-8_38.
Texte intégralMakela, Jonathan J., et Ethan S. Miller. « Influences on the Development of Equatorial Plasma Bubbles : Insights from a Long-Term Optical Dataset ». Dans Aeronomy of the Earth's Atmosphere and Ionosphere, 239–49. Dordrecht : Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-0326-1_17.
Texte intégralKumar, Adarsh. « GPS Device Based Equatorial Plasma Bubbles (EPB) Analysis on Radio Wave Propagation Over Low Latitude ». Dans Springer Proceedings in Physics, 147–61. Singapore : Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-8625-5_16.
Texte intégralAbdu, Mangalathayil Ali, et E. Alam Kherani. « Coupling Processes in the Equatorial Spread F/Plasma Bubble Irregularity Development ». Dans Aeronomy of the Earth's Atmosphere and Ionosphere, 219–38. Dordrecht : Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-0326-1_16.
Texte intégralP. Nade, Dada, Swapnil S. Potdar et Rani P. Pawar. « Study of Equatorial Plasma Bubbles Using ASI and GPS Systems ». Dans Geographic Information Systems in Geospatial Intelligence. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.85604.
Texte intégralActes de conférences sur le sujet "Equatorial plasma bubbles"
Fagundes, P. R. « Equatorial F-Region Plasma Bubbles Studies ». Dans 5th International Congress of the Brazilian Geophysical Society. European Association of Geoscientists & Engineers, 1997. http://dx.doi.org/10.3997/2214-4609-pdb.299.348.
Texte intégralBumrungkit, Acharaporn, et Pornchai Supnithi. « Statistical Analysis of Separation Distance between Equatorial Plasma Bubbles ». Dans 2017 IEEE 13th International Symposium on Autonomous Decentralized System (ISADS). IEEE, 2017. http://dx.doi.org/10.1109/isads.2017.18.
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 intégralS. Batista, Inez, M. A. Abdu, R. T. de Medeiros et J. H. A. Sobral. « Equatorial Spread-F And Plasma Bubbles : A Step Towards Prediction ». Dans 6th International Congress of the Brazilian Geophysical Society. European Association of Geoscientists & Engineers, 1999. http://dx.doi.org/10.3997/2214-4609-pdb.215.sbgf018.
Texte intégralMuralikrishna, P. « In situ observation of electron temperature enhancement inside equatorial plasma bubbles ». Dans 8th International Congress of the Brazilian Geophysical Society. European Association of Geoscientists & Engineers, 2003. http://dx.doi.org/10.3997/2214-4609-pdb.168.arq_2006.
Texte intégralChang, Loren C., Cornelius Csar Jude H. Salinas, Yi-Chung Chiu, Pei-Yun Chiu et Charles C. H. Lin. « Tidal Forcing Effects on the Zonal Variation of Solstice Equatorial Plasma Bubbles ». Dans ION 2019 Pacific PNT Meeting. Institute of Navigation, 2019. http://dx.doi.org/10.33012/2019.16843.
Texte intégralSarudin, I., N. S. A. Hamid, M. Abdullah et S. M. Buhari. « Equatorial plasma bubbles zonal velocity in the monthly variations over Southeast Asia ». Dans THE 2018 UKM FST POSTGRADUATE COLLOQUIUM : Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2018 Postgraduate Colloquium. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5111231.
Texte intégralAbdu, M. A., P. Muralikrishna, I. S. Batista et J. H. A. Sobral. « ROCKET OBSERVATION OF EQUATORIAL PLASMA BUBBLES OVER NATAL, BRAZIL : EVIDENCE OF ELECTRON TEMPERA TURE ENHANCEMENT INSIDE BUBBLE ». Dans 1st International Congress of the Brazilian Geophysical Society. European Association of Geoscientists & Engineers, 1989. http://dx.doi.org/10.3997/2214-4609-pdb.317.sbgf162.
Texte intégralYa'acob, Norsuzila, Siti Nuriana binti Suhaimy, Azita Laily Yusof, Mohd Syukri Hashim et Nur Idora Abd Razak. « Observation of GPS TEC depletions due to equatorial plasma bubbles during solar flare ». Dans 2013 International Conference on Space Science and Communication (IconSpace). IEEE, 2013. http://dx.doi.org/10.1109/iconspace.2013.6599448.
Texte intégralPradipta, Rezy, et Patricia H. Doherty. « Studies of Equatorial Plasma Bubbles and the Associated Ionospheric TEC Gradients over South America ». 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/10.33012/2016.14770.
Texte intégralRapports d'organisations sur le sujet "Equatorial plasma bubbles"
Burke, W. J., C. Y. Huang, C. E. Valladares, J. S. Machuzak et L. C. Gentile. Multipoint Observations of Equatorial Plasma Bubbles. Fort Belvoir, VA : Defense Technical Information Center, mai 2003. http://dx.doi.org/10.21236/ada423049.
Texte intégralKoons, H. C., J. L. Roeder et P. Rodriguez. Plasma Waves Observed Inside Plasma Bubbles in the Equatorial F Region. Fort Belvoir, VA : Defense Technical Information Center, janvier 1998. http://dx.doi.org/10.21236/ada342736.
Texte intégralTsunoda, Roland T. Study of Large-Scale Wave Structure and Development of Equatorial Plasma Bubbles Using the C/NOFS Satellite. Fort Belvoir, VA : Defense Technical Information Center, octobre 2012. http://dx.doi.org/10.21236/ada583486.
Texte intégralComberiate, 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.
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