Download or read book Suppression Effects Associated with VLF Transmitter Signals Injected Into the Magnetosphere written by Stanford University. Stanford Electronics Laboratories and published by . This book was released on 1977 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetospheric growth of coherent VLF signals transmitted from Siple Station, Antarctica is inhibited by whistler mode echoes of earlier transmitter signals. This new phenomenon, called echo-induced suppression, is observed at least a third of the time that transmissions from Siple Station are detected at the receiving station in Roberval, Quebec, Canada. Suppression levels as high as 20 dB are observed. Though the echo is usually much weaker than the direct signal the level of suppression is directly related to the amplitude of the echo. The echoes reduce triggering of emissions as well as the growth of the signal. Echo-induced suppression is not explained by linear wave-wave interference. The echoes are thought to restrict growth by reducing the coherence of the total input signal. According to quasi-linear theory, wave growth is regulated by changes in the particle pitch angle distribution that results from wave-particle interaction. These new results suggest that coherent waves tend to limit their own growth, even when modification of the particle pitch angle distribution is unimportant. Other phenomena such as whistler-induced suppression of signal growth are thought to be related to echo-induced suppression. Wave-induced growth suppression provides an indirect verification of the existence of discrete ducts for the propagation of VLF signals in the magnetosphere.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1973 with total page 1102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book VLF Wave wave Interaction Experiments in the Magnetosphere written by Stanford University. Stanford Electronics Laboratories and published by . This book was released on 1978 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Antarctic Journal of the United States written by and published by . This book was released on 1987 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report for Fiscal Year written by National Science Foundation (U.S.) and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1977-10 with total page 1488 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Semi annual Status Report No 132 January Through June 1977 written by Stanford University. Stanford Electronics Laboratories and published by . This book was released on 1977 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Antarctic Bibliography written by and published by . This book was released on 1990 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Current Antarctic Literature written by and published by . This book was released on 1988 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book American Doctoral Dissertations written by and published by . This book was released on 1977 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Upper Atmosphere Research in Antarctica written by Louis J. Lanzerotti and published by . This book was released on 1978 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume reviews the highlights of upper-atmosphere research in Antarctica with emphasis on the results of the United States Antarctic Research Program since about 1965.

Download or read book Government Reports Annual Index written by and published by . This book was released on 1978 with total page 1130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1974 with total page 1148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Meteorological and Geoastrophysical Abstracts written by and published by . This book was released on 1986 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1984 with total page 890 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physics of Solar Planetary Environments written by Donald J. Williams and published by . This book was released on 1976 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stanford University Electronics Research Review written by and published by . This book was released on 1974 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes brief descriptions of projects, listings of contracts and grant support, and listings of publications.