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Статті в журналах з теми "Ionospheric physics"
Chernogor, L. F. "Physics of geospace storms." Kosmìčna nauka ì tehnologìâ 27, no. 1 (2021): 3–77. http://dx.doi.org/10.15407/knit2021.01.003.
Повний текст джерелаJanhunen, P. "On the possibility of using an electromagnetic ionosphere in global MHD simulations." Annales Geophysicae 16, no. 4 (April 30, 1998): 397–402. http://dx.doi.org/10.1007/s00585-998-0397-y.
Повний текст джерелаLi, Minchi, Yu Liu, and Jiuhou Lei. "Design and fabrication of a magnetic filter source to produce ionospheric-like plasma." AIP Advances 13, no. 4 (April 1, 2023): 045208. http://dx.doi.org/10.1063/5.0126931.
Повний текст джерелаSOJKA, J. J. "Ionospheric Physics." Reviews of Geophysics 29, S2 (January 1991): 1166–86. http://dx.doi.org/10.1002/rog.1991.29.s2.1166.
Повний текст джерелаMitchell, C. N., I. K. Walker, S. E. Pryse, I. Kersley, I. W. McCrea, and T. B. Jones. "<i>Letter to the Editor:</i> First complementary observations by ionospheric tomography, the EISCAT Svalbard radar and the CUTLASS HF radar." Annales Geophysicae 16, no. 11 (November 30, 1998): 1519–22. http://dx.doi.org/10.1007/s00585-998-1519-2.
Повний текст джерелаЯсюкевич, Юрий, Yury Yasyukevich, Илья Живетьев, and Ilya Zhivetiev. "Using network technology for studying the ionosphere." Solnechno-Zemnaya Fizika 1, no. 3 (September 27, 2015): 21–27. http://dx.doi.org/10.12737/10545.
Повний текст джерелаJee, Geonhwa. "Fundamentals of Numerical Modeling of the Mid-latitude Ionosphere." Journal of Astronomy and Space Sciences 40, no. 1 (March 2023): 11–18. http://dx.doi.org/10.5140/jass.2023.40.1.11.
Повний текст джерелаNielsen, E., and F. Honary. "Observations of ionospheric flows and particle precipitation following a Sudden Commencement." Annales Geophysicae 18, no. 8 (August 31, 2000): 908–17. http://dx.doi.org/10.1007/s00585-000-0908-y.
Повний текст джерелаTrigunait, A., M. Parrot, S. Pulinets, and F. Li. "Variations of the ionospheric electron density during the Bhuj seismic event." Annales Geophysicae 22, no. 12 (December 22, 2004): 4123–31. http://dx.doi.org/10.5194/angeo-22-4123-2004.
Повний текст джерелаJoshi, Lalit Mohan, Samireddipelle Sripathi, Muppidi Ravi Kumar, and Esfhan Alam Kherani. "Simulating the dependence of seismo-ionospheric coupling on the magnetic field inclination." Annales Geophysicae 36, no. 1 (January 10, 2018): 25–35. http://dx.doi.org/10.5194/angeo-36-25-2018.
Повний текст джерелаДисертації з теми "Ionospheric physics"
Dorfman, Seth E. "Intense spreading of radar echoes from ionospheric plasmas." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32897.
Повний текст джерелаIncludes bibliographical references (leaf 41).
On December 25, 2004, a large-scale ionospheric plasma bubble was observed over Arecibo Observatory in Puerto Rico, inducing significant range spreading on ionograms. This phenomena may be explained by means of the E x B instability and gravitational Rayleigh-Taylor instability. A derivation of the dispersion relations for X and O mode waves transmitted from an ionosonde and an analysis of the collisional Rayleigh-Taylor instability leading to an expression for the growth rate are presented as background information. Ray tracing code developed by Nathan Dalrymple, a previous graduate student of Professor Min-Chang Lee, is extended, first to draw refractive index surfaces to illustrate a key principle in ray tracing and later to simulate range spreading due to depleted ionospheric ducts [1]. Data from Arecibo incoherent scatter radar and Arecibo's CADI digisonde is examined showing strong evidence for the development of a plasma bubble following a rise in the plasma layer and the appearance of a horizontal density gradient. In one portion of the ionosphere, this gradient is found to be at an angle of approximately 70 degrees to the Earth's magnetic field, a favorable condition for the excitation of the Rayleigh-Taylor instability over Arecibo.
by Seth E. Dorfman.
S.B.
Chapagain, Narayan P. "Dynamics of Equatorial Spread F Using Ground-Based Optical and Radar Measurements." DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/897.
Повний текст джерелаJensen, Joseph B. "The Effect of Ionospheric Conductivity on Magnetospheric Dynamics." Thesis, University of New Hampshire, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10839528.
Повний текст джерелаThe connection between ionospheric conductivity and the dynamics of the magnetosphere was investigated, using several methods to change the ionospheric conductivity and then study the resultant changes to the magnetosphere. Computer simulations of the Earth's geospace environment were utilized using OpenGGCM coupled with an ionosphere model CTIM and a ring current model RCM.
Three methods were used to modify ionospheric conductivity. The incoming particle precipitation was modified by several orders of magnitude α = .01, .1, 1, 10, the ionospheric conductivity was increased or decreased by factors β = .25, .5, 1, 2, and 4, and for the last method differing values of F10.7, 70, 110, 150, 200, and 250 were used. Each of the methods is different because F10.7 mostly affects the dayside, while precipitation mostly affects the nightside, then using the β changes the conductivity over the whole ionosphere. This gives a good range for studying the effects of ionospheric conductivity on the magnetosphere.
The magnetospheric dynamics studied are: the dayside magnetopause location, the reconnection rate of the Earth's magnetosphere, X-line formation in the magnetotail, and substorm dynamics, both the frequency and magnitude of substorm occurrence.
To understand the effect of particle precipitation on conductivity two events were simulated, a calm period on 4 May 2005 and a strong storm period on 17 March 2013. Scaling the precipitation energy flux by several orders of magnitude, conductivities in the auroral oval were influenced which, in turn, influence the cross polar cap potentials. With the change in conductance, magnetospheric convection is enhanced or reduced, and the location of the subsolar distance of the magnetopause can change by up to one R E. The investigation of the reconnection rate for the varying precipitation simulations using the Hesse-Forbes-Bern method shows that particle precipitation affects the magnetic reconnection rate in these two events. The most notable differences, up to 40\%, occur on short time scales, that is, hours. A relation for longer time scales (tens of hours) between precipitation and reconnection for these two events is more difficult to ascertain. Differences in cross polar cap potential (CPCP) and reconnection rate (R) can be explained by viscous interactions and polar cap saturation. When precipitation was decreased, polar conductance was decreased, viscous interactions are stronger, and CPCP is higher than R. For high precipitation, high conductance cases the polar cap is in the saturation regime and CPCP is lower than R. Hemispheric asymmetries were found in the cross polar cap potential and in the calculated reconnection rate derived from the Northern and Southern Hemispheres. The majority of this research has already been published in the Journal of Geophysical Research: Space physics, "Particle Precipitation Effects on Convection and the Magnetic Reconnection Rate in Earth's Magnetosphere" https://doi.org/10.1002/2017JA024030.
For the whole ionospheric conductivity study, different values of β = .25, .5, 1, 2, 4 were used to modify the ionospheric conductivity after it had been calculated by the ionosphere model. A moderate storm period, 16 May 2011 was simulated. Many of the same conclusions found in the precipitation study were found in this study as well, such as, CPCP decreasing as conductivity increases, the point at which the polar cap saturates decreases with increasing conductivity, and reconnection rates change on short time scales, but the overall average rate remains very similar. The incoming precipitation was used to identify auroral brightening that is linked with substorms. The criteria for auroral brightenings used in this study is where the maximum precipitation increased by at least 1 mW/m2 within 20 minutes. The criteria for substorms is that the maximum precipitation increases by 80\% within 20 minutes. Identifying all the auroral brightenings and substorms showed that as conductivity increased the maximum amount of precipitation decreased, and also the number and frequency of both the substorms and auroral brightenings decreased. The occurrence of extended X-lines in the magnetotail was analyzed, where if an earthward flow of greater than 50 km/s extended for greater than 10 Re in YGSE was classified as an extended X-line. This is not to be confused with a bursty bulk flow or dipolarization front, which happen from reconnection but usually do not have a large extent in YGSE. Identifying extended X-lines in this manner showed a similar trend that as conductivity increased the number of extended X-lines decreased, and while there was not much of an indication if the size or location is affected much, the amount of time the simulation had extended X-lines present decreased.
For the F10.7 study, using values of 70, 110, 150, 200, and 250, the ionospheric conductivity was influenced mostly on the dayside. (Abstract shortened by ProQuest.)
Scherliess, Ludger. "Empirical Studies of Ionospheric Electric Fields." DigitalCommons@USU, 1997. https://digitalcommons.usu.edu/etd/6823.
Повний текст джерелаDe, Larquier Sebastien. "The mid-latitude ionosphere under quiet geomagnetic conditions: propagation analysis of SuperDARN radar observations from large ionospheric perturbations." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/24770.
Повний текст джерелаPh. D.
Pradipta, Rezy. "Incoherent scatter radar detection of enhanced plasma line in ionospheric E-region over Arecibo." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/36122.
Повний текст джерелаIncludes bibliographical references (p. 45).
A series of incoherent scatter radar (ISR) observation were conducted at the Arecibo Observatory from December 27, 2005 until January 3, 2006. From plasma line measurements that were taken during this radar campaign, we found that plasma line enhancement was quite frequently seen in the ionospheric E-region. We hypothesized that the E-region plasma line enhancement over Arecibo was caused by precipitated electrons from the radiation belts. The precipitated electrons will enhance the population of suprathermal electrons in the E-region. Subsequently, suprathermal electrons will cause excitation of Langmuir waves that could be detected by incoherent scatter radar as plasma lines. In this thesis, we are going to examine and discuss the observed features of E-region plasma line enhancement over Arecibo to test this hypothesis. In addition, a theoretical discussion on Langmuir waves is also presented in a chapter of this thesis. Finally, we also introduce the Spread F Index (SFI) as a convenient bookkeeping method to summarize spread F condition over a certain period of time.
by Rezy Pradipta.
S.B.
Kane, Mark Vinton. "Transient subsurface features in Mars Express radar data: an explanation based on ionospheric holes." Thesis, University of Iowa, 2012. https://ir.uiowa.edu/etd/3477.
Повний текст джерелаNichols, James Warren. "The design of a new far ultraviolet interferometer for ionospheric spectroscopy." Thesis, Monterey, California : Naval Postgraduate School, 1990. http://handle.dtic.mil/100.2/ADA241767.
Повний текст джерелаThesis Advisor(s): Cleary, David D. ; Davis, D. Scott. "December 1990." Description based on title screen as viewed on April 2, 2010. DTIC Identifier(s): Ionosphere, Ultraviolet Spectroscopy, Interferometer. Author(s) subject terms: Ionosphere, Ultraviolet Spectroscopy, Interferometer. Includes bibliographical references (p. 64-67). Also available in print.
Subramanium, Mahesh. "A Study of the Gradient Drift Instability in the High-Latitude Ionosphere Using the Utah State University Time Dependent Ionospheric Model." DigitalCommons@USU, 1996. https://digitalcommons.usu.edu/etd/4869.
Повний текст джерелаLöfås, Henrik. "Ionospheric modification by powerful HF-waves : Underdense F-region heating by X-Mode." Thesis, Uppsala universitet, Institutionen för fysik och astronomi, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-121898.
Повний текст джерелаКниги з теми "Ionospheric physics"
Kunitsyn, Viacheslav E. Ionospheric Tomography. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003.
Знайти повний текст джерелаD, Tereshchenko E., ed. Ionospheric tomography. Berlin: Springer, 2003.
Знайти повний текст джерелаV, Kuznet͡s︡ov V., and Vilenskiĭ Iosif Markovich, eds. Iskusstvennye kvaziperiodicheskie neodnorodnosti v nizhneĭ ionosfere. Novosibirsk: Izd-vo "Nauka," Sibirskoe otd-nie, 1987.
Знайти повний текст джерелаA, Zherebt͡s︡ov G., and Sibirskiĭ institut zemnogo magnetizma, ionosfery i rasprostranenii͡a︡ radiovoln., eds. Fizika ionosfery i rasprostranenii͡a︡ radiovoln. Moskva: "Nauka", 1987.
Знайти повний текст джерелаA, Zherebt͡s︡ov G., and Koshelev V. V, eds. Fizika ionosfery i rasprostranenii͡a︡ radiovoln: Sbornik nauchnykh trudov. Moskva: "Nauka", 1990.
Знайти повний текст джерелаUnited States. National Aeronautics and Space Administration., ed. A sundial-atlas precursor to the TIMED mission: A quick-response global investigation into coupled lower thermospheric, ionospheric, and mesospheric physics : final report, NASA contract NASW-4755. [Washington, DC: National Aeronautics and Space Administration, 1996.
Знайти повний текст джерелаUnited States. National Aeronautics and Space Administration., ed. A sundial-atlas precursor to the TIMED mission: A quick-response global investigation into coupled lower thermospheric, ionospheric, and mesospheric physics : final report, NASA contract NASW-4755. [Washington, DC: National Aeronautics and Space Administration, 1996.
Знайти повний текст джерелаUnited States. National Aeronautics and Space Administration., ed. A sundial-atlas precursor to the TIMED mission: A quick-response global investigation into coupled lower thermospheric, ionospheric, and mesospheric physics : final report, NASA contract NASW-4755. [Washington, DC: National Aeronautics and Space Administration, 1996.
Знайти повний текст джерелаUnited States. National Aeronautics and Space Administration., ed. A sundial-atlas precursor to the TIMED mission: A quick-response global investigation into coupled lower thermospheric, ionospheric, and mesospheric physics : final report, NASA contract NASW-4755. [Washington, DC: National Aeronautics and Space Administration, 1996.
Знайти повний текст джерелаCOSPAR colloquium on Low-Latitude Ionospheric Physics (1993 Taipei, Taiwan). Low-latitude ionospheric physics: Proceedings of COSPAR Colloquium on low-latitude ionospheric physics held in Taipei, Taiwan, 9-12 November, 1993. Kidlington, Oxford, U.K: Elsevier Science, 1994.
Знайти повний текст джерелаЧастини книг з теми "Ionospheric physics"
Chen, Pei-Ren. "Ionospheric Physics." In Space Science in China, 163–82. London: Routledge, 2022. http://dx.doi.org/10.1201/9780203739082-14.
Повний текст джерелаFejer, Bela G. "Low Latitude Ionospheric Electrodynamics." In Key Processes in Solar-Terrestrial Physics, 145–66. New York, NY: Springer US, 2010. http://dx.doi.org/10.1007/978-1-4614-1493-3_7.
Повний текст джерелаEves, Stuart. "Microsatellite Ionospheric Network in Orbit." In Springer Proceedings in Physics, 71–82. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-02207-9_13.
Повний текст джерелаKunitsyn, Viacheslav E., and Evgeny D. Tereshchenko. "Diffraction Radio Tomography of Ionospheric Irregularities." In Physics of Earth and Space Environments, 129–55. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-05221-1_5.
Повний текст джерелаLuhmann, J. G. "“Wave” analysis of venus ionospheric flux ropes." In Physics of Magnetic Flux Ropes, 425–32. Washington, D. C.: American Geophysical Union, 1990. http://dx.doi.org/10.1029/gm058p0425.
Повний текст джерелаFriis-Christensen, E. "Terrestrial ionospheric signatures of field-aligned currents." In Physics of Magnetic Flux Ropes, 605–10. Washington, D. C.: American Geophysical Union, 1990. http://dx.doi.org/10.1029/gm058p0605.
Повний текст джерелаLin, Z. M., J. R. Benbrook, E. A. Bering, G. J. Byrne, E. Friis-Christensen, D. Liang, B. Liao, and J. Theall. "Observations of ionospheric flux ropes above South Pole." In Physics of Magnetic Flux Ropes, 581–90. Washington, D. C.: American Geophysical Union, 1990. http://dx.doi.org/10.1029/gm058p0581.
Повний текст джерелаSmith, M. F., J. D. Winningham, J. A. Slavin, and M. Lockwood. "DE-2 observations of filamentary currents at ionospheric altitudes." In Physics of Magnetic Flux Ropes, 591–98. Washington, D. C.: American Geophysical Union, 1990. http://dx.doi.org/10.1029/gm058p0591.
Повний текст джерелаNuraeni, Fitri, La Ode M. Musafar Kilowasid, Clara Y. Yatini, Visca Wellyanita, Satriya Utama, Yoga Andrian, Teti Zubaidah, et al. "Low-Latitude Fluctuation of Ionospheric Magnetic Field Measured by LAPAN-A3 Satellite." In Springer Proceedings in Physics, 55–62. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9768-6_5.
Повний текст джерелаGillmor, C. Stewart. "Ionospheric and Radio Physics in Australian Science since the Early Days." In International Science and National Scientific Identity, 181–204. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3786-7_9.
Повний текст джерелаТези доповідей конференцій з теми "Ionospheric physics"
Belakhovsky, Vladimir, Yaqi Jin, and Wojciech Miloch. "Impact of the substorms and polar cap patches on GPS radio waves at polar latitudes." In Physics of Auroral Phenomena. FRC KSC RAS, 2020. http://dx.doi.org/10.37614/2588-0039.2020.43.020.
Повний текст джерелаZong, Q. G., B. W. Reinisch, P. Song, I. Galkin, X. J. Liu, Paul Song, John Foster, Michael Mendillo, and Dieter Bilitza. "Ionospheric Response to the Interplanetary Shock." In RADIO SOUNDING AND PLASMA PHYSICS. AIP, 2008. http://dx.doi.org/10.1063/1.2885033.
Повний текст джерелаCherniakov, Sergei M., Semen V. Nikolashkin, and Valentina A. Tereshchenko. "Vilyuysk meteor explosion: ionospheric and geomagnetic effects in the high-latitude lower ionosphere." In XXIII International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, edited by Oleg A. Romanovskii. SPIE, 2017. http://dx.doi.org/10.1117/12.2282360.
Повний текст джерелаMilikh, Gennady, Aram Vartanyan, Dimitris Vassiliadis, Shing F. Fung, Xi Shao, Ioannis A. Daglis, and Joseph D. Huba. "HAARP-Induced Ionospheric Ducts." In MODERN CHALLENGES IN NONLINEAR PLASMA PHYSICS: A Festschrift Honoring the Career of Dennis Papadopoulos. AIP, 2011. http://dx.doi.org/10.1063/1.3544323.
Повний текст джерелаPitout, F. "Ionospheric Response to Flux Transfer Events at the Earth’s Magnetopause." In PLASMA PHYSICS: 11th International Congress on Plasma Physics: ICPP2002. AIP, 2003. http://dx.doi.org/10.1063/1.1594059.
Повний текст джерелаKolesnik, A. G., and S. A. Kolesnik. "History of Tomsk Ionospheric Station development." In XXI International Symposium Atmospheric and Ocean Optics. Atmospheric Physics, edited by Oleg A. Romanovskii. SPIE, 2015. http://dx.doi.org/10.1117/12.2206213.
Повний текст джерелаSivokon', Vladimir. "Ionospheric waveguide and magnetically oriented irregularities." In XXIII International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, edited by Oleg A. Romanovskii and Gennadii G. Matvienko. SPIE, 2017. http://dx.doi.org/10.1117/12.2286428.
Повний текст джерелаBazhenov, Vladislav D., Sergey N. Kolesnik, and Viktor I. Sazhin. "Estimated effect of ionospheric longitudinal horizontal electron density gradients on ionospheric delay of gnss signals." In 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, edited by Oleg A. Romanovskii and Gennadii G. Matvienko. SPIE, 2021. http://dx.doi.org/10.1117/12.2602970.
Повний текст джерелаYasyukevich, Anna, and Yury Yasyukevich. "Ionospheric variations during typhoons of autumn 2016." In XXIII International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, edited by Oleg A. Romanovskii. SPIE, 2017. http://dx.doi.org/10.1117/12.2288759.
Повний текст джерелаMerino, Meyer, Juan Pablo Velasquez, and Enrique Rojas. "Computerized Tomography of Low Latitude Ionospheric Plasma." In 2017 16th Latin American Workshop on Plasma Physics (LAWPP). IEEE, 2017. http://dx.doi.org/10.1109/lawpp.2017.8692189.
Повний текст джерелаЗвіти організацій з теми "Ionospheric physics"
Broadfoot, A. L. Student Training in Mesopheric, Ionospheric, and Thermospheric Physics. Fort Belvoir, VA: Defense Technical Information Center, September 2001. http://dx.doi.org/10.21236/ada400658.
Повний текст джерелаYizengaw, Endawoke, and Mark B. Moldwin. Understanding the Physics Behind Ionospheric and Plasmaspheric Density Irregularities by Utilizing Multi-Instrument Observations Data. Fort Belvoir, VA: Defense Technical Information Center, April 2013. http://dx.doi.org/10.21236/ada589381.
Повний текст джерелаVerronen, P. T:, ed. 11 th International Workshop on Long-Term Changes and Trends in the Atmosphere, Book of Abstracts. Finnish Meteorological Institute, May 2022. http://dx.doi.org/10.35614/isbn.9789523361577.
Повний текст джерелаBARKHATOV, NIKOLAY, and SERGEY REVUNOV. A software-computational neural network tool for predicting the electromagnetic state of the polar magnetosphere, taking into account the process that simulates its slow loading by the kinetic energy of the solar wind. SIB-Expertise, December 2021. http://dx.doi.org/10.12731/er0519.07122021.
Повний текст джерела