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Author : H. Thiemann
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (699 download)
Download or read book Improvement of polar zone ionospheric model written by H. Thiemann and published by . This book was released on 1990 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improvement of Polar Zone Ionospheric Model written by and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improvement of Polar Zone Ionospheric Model written by and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : George J. Gassmann
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.3/5 (91 download)
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).
Author : B. S. Dandekar
Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.:/5 (319 download)
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:
Author : Gunnar Skovli
Publisher :
ISBN 13 :
Total Pages : 368 pages
Book Rating : 4.:/5 (35 download)
Download or read book The Polar Ionosphere and Magnetospheric Processes written by Gunnar Skovli and published by . This book was released on 1970 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 154 pages
Book Rating : 4.:/5 (318 download)
Download or read book Numerical Modeling of Polar Ionospheric Electrodynamics for July 23-24, 1983 Utilizing Ionospheric Conductances Deduced from DMSP X-ray Images written by and published by . This book was released on 1988 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 702 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : D. Bilitza
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.3/5 (91 download)
Download or read book Path Toward Improved Ionosphere Specification and Forecast Models written by D. Bilitza and published by . This book was released on 2004 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David C. Miller
Publisher :
ISBN 13 :
Total Pages : 79 pages
Book Rating : 4.:/5 (227 download)
Download or read book Ionospheric Analysis and Ionospheric Modeling written by David C. Miller and published by . This book was released on 1974 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: Investigations performed towards the development of improved models of the ionosphere are described. The study was directed at improving existing prediction models of ionospheric parameters. This lead to the development of techniques to update on a global basis monthly median predictions of (f sub o) F2 and M(3000)F2. A new electron density model is presented which allows the user to make a full three dimensional ionosphere for use in a variety of HF radio applications. Extensive tests are presented which explore the model's accuracy. Parts of a separate model for the polar region has been consolidated and incorporated in programs for the evaluation of HF performance criteria.
Author : David C. Miller
Publisher :
ISBN 13 :
Total Pages : 93 pages
Book Rating : 4.:/5 (227 download)
Download or read book Ionospheric Modeling and Propagation Analysis written by David C. Miller and published by . This book was released on 1978 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes several studies performed toward improving our knowledge of the properties of High-Frequency communication circuits. These studies included the development of three dimensional electron density models and the analysis of various propagation modes in the ionosphere. Several vertical electron density models were constructed that proved to be useful in both global and polar region HF applications. Improvements were made to existing models for individual ionospheric layer parameters. Some of the properties of long range ducted modes have been isolated using ray tracing techniques. The relative probability of establishing and maintaining ducted modes as a function of HF circuit parameters for various ionospheric conditions has been explored. The stability of these modes for small perturbations to the ambient ionosphere has also been studied. Injection into ionospheric ducts by artificially heating localized regions of the ionosphere has been investigated. Spatial distributions and intensity patterns have been obtained for irregularities in the electron density which align themselves with the local geomagnetic field.
Author : Lou-Chuang Lee
Publisher : Springer Science & Business Media
ISBN 13 : 9789624301359
Total Pages : 410 pages
Book Rating : 4.3/5 (13 download)
Download or read book Applications of Constellation Observing System for Meteorology, Ionosphere & Climate written by Lou-Chuang Lee and published by Springer Science & Business Media. This book was released on 2001-01-01 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: A collection of contributions from many experts from space research institutions in a joint US-Taiwan project, COSMIC - Application of Constellation Observing System for Meteorology, Ionosphere and Climate. The COSMIC project data will complement other observing systems and improve global weather analyses. These improved data analyses and forecast will provide significant benefits to aviation and other industries that accurate meteorological forecast are needed . The COSMIC project is a science experience to demonstrate the utility of atmospheric limb surroundings from a constellation of eight low-earth orbiting satellites in operational weather prediction, space weather monitoring and space geodesy.
Author : KORENKOV
Publisher : Birkhäuser
ISBN 13 : 3034865325
Total Pages : 373 pages
Book Rating : 4.0/5 (348 download)
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:
Author : Chao Huang
Publisher : John Wiley & Sons
ISBN 13 : 1119815533
Total Pages : 47 pages
Book Rating : 4.1/5 (198 download)
Download or read book Space Physics and Aeronomy, Ionosphere Dynamics and Applications written by Chao Huang and published by John Wiley & Sons. This book was released on 2021-04-16 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review of global ionospheric research from the polar caps to equatorial regions It's more than a century since scientists first identified the ionosphere, the layer of the Earth’s upper atmosphere that is ionized by solar and cosmic radiation. Our understanding of this dynamic part of the near-Earth space environment has greatly advanced in recent years thanks to new observational technologies, improved numerical models, and powerful computing capabilities. Ionosphere Dynamics and Applications provides a comprehensive overview of historic developments, recent advances, and future directions in ionospheric research. Volume highlights include: Behavior of the ionosphere in different regions from the poles to the equator Distinct characteristics of the high-, mid-, and low-latitude ionosphere Observational results from ground- and space-based instruments Ionospheric impacts on radio signals and satellite operations How earthquakes and tsunamis on Earth cause disturbances in the ionosphere The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity. Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals. Find out more about the Space Physics and Aeronomy collection in this Q&A with the Editors in Chief
Author : United States. National Telecommunications and Information Administration
Publisher :
ISBN 13 :
Total Pages : 46 pages
Book Rating : 4.:/5 (327 download)
Download or read book Publications Abstracts written by United States. National Telecommunications and Information Administration and published by . This book was released on 1982 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. Buchau
Publisher :
ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.3/5 (91 download)
Download or read book Arctic Ionosphere and Aurora written by J. Buchau and published by . This book was released on 1970 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: In response to Air Force needs for specifying and forecasting conditions of the Arctic ionosphere, AFCRL's Airborne Ionospheric Laboratory, a highly instrumented NKC 135 jet aircraft, was used in an extensive Arctic research program that started in 1967. To date, 69 flights were made and ionospheric and optical data covering major parts of the auroral oval, mainly the midday sector and the night sector, were collected. During the winter months of 1967, 1968, 1969, and 1970 special emphasis was put on the investigation of the day sector. These flights covered a rather unique and poorly investigated area of the auroral oval, and a detailed report on the observations is given here. A thorough analysis of the data collected in the day sector reveals the existence of a band of continuous particle precipitation south of the location of the discrete aurora. This precipitation hardens towards the south and results in E- and D-region ionization. These observations compare very well with measurements of precipitating particles done by satellite. The investigation of the evening and night sectors showed similar but less organized trends than on the day side. During several flights the continuity of the auroral oval was verified. The investigation indicates that, with additional measurements, it may be possible to develop a model of the Arctic ionosphere. With control measurements from a few ideally located ground stations, the dynamics of the Arctic ionosphere might then be utilized for forecasting propagation conditions in the Arctic. (Author).
Author : B. J. Watkins
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.:/5 (227 download)
Download or read book The Polar Ionosphere and Interplanetary Field written by B. J. Watkins and published by . This book was released on 1987 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The model ionosphere was developed that is coupled to a magnetospheric model for investigating time dependent behavior of the Polar F-region ionosphere in response to varying interplanetary magnetic field (IMF) configurations. The numerical ionospheric model covers a latitude range from 50 to 90 degrees and an altitude range of 150 to 600 KM. The purpose of the magnetospheric model is to define the location and geometry of the polar cap, which is defined as the region of open field lines. The polar cap configuration has been coupled to a model electric field pattern that in turn may vary in size and strength in response to the IMF. The ionosphere model assumes only oxygen ions; the ion density is solved vertically along many magnetic field lines as they move horizontally under the influence of the large-scale convective electric fields. The lower boundary is defined by the local chemistry and the upper boundary condition has been set by applying an outward flux of ions appropriate for open field line conditions. The model has been used to illustrate ionospheric behavior during geomagnetic storms conditions. Future model applications may include ionospheric prediction using IMF inputs improved understanding of polar ionization structures.
