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An Ionospheric Model For The Arctic
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Book Synopsis An Ionospheric Model for the Arctic by : George J. Gassmann
Download or read book An Ionospheric Model for the Arctic written by George J. Gassmann and published by . This book was released on 1970 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: A first order approximation model of the Arctic ionosphere is described, based on published observations and concepts. The model allows for modifications and additions whenever new information becomes available, and will eventually represent a true picture available in real time or even as forecast. The location of the phenomena is specified in corrected geomagnetic latitude and local time. Various input parameters are included whenever some of their influences are known, such as UT, seasons, sunspot number, magnetic variations. The Arctic ionospheric features are specified as 'quasi-instant' deviations from routine predictions whereby the devitations represent probabilities of occurrence during periods that may range from 20 min to 3 hr. The following ionospheric features are more or less covered: auroral E (or night-E), auroral Es (or Esr), HF absorption, Arctic F. Necessary improvements to the model are indicated, including the inclusion of storm-time of individual substorms and the requirement that routine observations be maintained in the midnight sector of the auroral oval. (Author).
Book Synopsis An Empirical Model of the Polar Ionosphere by : Terence James Elkins
Download or read book An Empirical Model of the Polar Ionosphere written by Terence James Elkins and published by . This book was released on 1973 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Four separate articles are collected which deal with the construction of empirical models of the polar ionosphere. The particular emphasis in these articles is towards the radio propagation application of the models. Numerical models of the vertical electron density profiles on the topside and bottomside of the F-region are developed, and a model for sporadic-E is included. Special attention is devoted to features which are characteristic of the polar ionosphere-auroral effects, the trough, and magnetospheric cleft regions. The models are constructed specifically for convenience in computer programming, and in fact, all aspects of the models contained in this report are available in the form of Fortran computer programs. (Author).
Book Synopsis Detailed Specification of the Arctic Ionosphere and an Application to Three-dimensional Raytracing by : J. Buchau
Download or read book Detailed Specification of the Arctic Ionosphere and an Application to Three-dimensional Raytracing written by J. Buchau and published by . This book was released on 1973 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: A statistical analysis of Alouette topside ionograms shows that the probability of occurrence of the midlatitude F-layer trough is 100 percent in winter and at equinox, and is 50 percent in summer. The trough, which is generally centered on 55 degrees corrected geomagnetic latitude and which is about 5 degrees to 10 degrees wide, extends throughout the night hemisphere with f(o)F2 values less than 2 MHz. Comparison of the location of the trough to the area in which coverage by an over the horizon backscatter (OTHB) system is anticipated shows that the trough will adversely affect system performance in the northeast direction most of the night. An in-depth case study of the effects of the trough on HF propagation was made, based on an instantaneous three-dimensional description of the ionosphere. This description of the ionosphere was composed of cross sections showing ionospheric electron-density structure in the area northeast of the Polar Fox II site. Three-dimensional raytracing was applied to this description of the ionosphere, and the trough and the steep electron-density gradient at the poleward edge of the trough were found to adversely affect propagation of HF signals. (Modified author abstract).
Download or read book Ionospheric Modeling written by KORENKOV and published by Birkhäuser. This book was released on 2013-12-11 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Assessment of the AN/FPS 118 Ionospheric Model and Proposed Improvements by : B. S. Dandekar
Download or read book Assessment of the AN/FPS 118 Ionospheric Model and Proposed Improvements written by B. S. Dandekar and published by . This book was released on 1994 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Space Weather Monitoring by Ground-Based Means by : Oleg Troshichev
Download or read book Space Weather Monitoring by Ground-Based Means written by Oleg Troshichev and published by Springer Science & Business Media. This book was released on 2012-02-10 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book demonstrates that the method, based on the ground polar cap magnetic observations is a reliable diagnosis of the solar wind energy coming into the magnetosphere Method for the uninterruptive monitoring of the magnetosphere state (i.e. space weather). It shows that the solar wind energy pumping power, can be described by the PC growth rate, thus, the magnetospheric substorms features are predetermined by the PC dynamics. Furthermore, it goes on to show that the beginning and ending of magnetic storms is predictable. The magnetic storm start only if the solar energy input into the magnetosphere exceeds a certain level and stops when the energy input turns out to be below this level.
Download or read book Arctic Bulletin written by and published by . This book was released on 1978 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: One issue each year devoted to the annual report.
Book Synopsis Report on Research at AFCRL. by : Air Force Cambridge Research Laboratories (U.S.)
Download or read book Report on Research at AFCRL. written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1970 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ionospheric Modeling by : B. S. Dandekar
Download or read book Ionospheric Modeling written by B. S. Dandekar and published by . This book was released on 1982 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Arctic Research of the United States by :
Download or read book Arctic Research of the United States written by and published by . This book was released on 1992 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurements of Trans-ionospheric Propagation Parameters in the Polar Cap Ionosphere by : John A. Klobuchar
Download or read book Measurements of Trans-ionospheric Propagation Parameters in the Polar Cap Ionosphere written by John A. Klobuchar and published by . This book was released on 1987 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of absolute TEC (Total Electron Content), were made for the first time from the polar cap station located at Thule, Greenland in early 1984 using dual-frequency group delay measurements from high orbit satellites. Measurements of L-band amplitude scintillation and dual-frequency differential carrier phase scintillation were also made. The variability of the TEC was extremely large, with increases above the background values of more than 100 percent observed frequently. Quasi-periodic TEC enhancements with periods as short as 10 min and with amplitudes exceeding 10**17 el/m**2 column were seen over several time intervals of more than two hours. The absolute values of TEC observed in the dark polar cap ionosphere at times exceeded the diurnal maximum values from the mid-latitude ionosphere during this initial period of observations.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Electromagnetic Coupling in the Polar Clefts and Caps by : Per Even Sandholt
Download or read book Electromagnetic Coupling in the Polar Clefts and Caps written by Per Even Sandholt and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the NATO Advanced Research Workshop, Lillehammer, Norway, September 20-24, 1988
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1974-07 with total page 978 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geomagnetism, Aeronomy and Space Weather by : Mioara Mandea
Download or read book Geomagnetism, Aeronomy and Space Weather written by Mioara Mandea and published by Cambridge University Press. This book was released on 2019-11-14 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: An interdisciplinary review of research in geomagnetism, aeronomy and space weather, written by eminent researchers from these fields.
Book Synopsis Assemblée Plénière by : International Radio Consultative Committee
Download or read book Assemblée Plénière written by International Radio Consultative Committee and published by . This book was released on 1990 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recommendations and Reports of the CCIR, 1982 by : International Radio Consultative Committee
Download or read book Recommendations and Reports of the CCIR, 1982 written by International Radio Consultative Committee and published by . This book was released on 1982 with total page 1122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
