Download or read book Initial Observations of Earth Current and Magnetic Field Micropulsations written by GEORGE JR. HOPKINS and published by . This book was released on 1959 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analysis of Magnetotelluric Micropulsations at Widely Separated Stations written by Roy L. Komack and published by . This book was released on 1964 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation of ultra low frequency electromagnetic signals known as magnetotelluric micropulsations was made. The electric field strength at the earth's surface was measured by means of electrodes placed in the ground. Analog paper chart records of these signals were made at Trinidad, B.W.I., Puerto Rico, and Austin, Texas. These records were later hand-digitized. The power spectra of the signals at each station were computed for a data sample three quarters of an hour long. Certain power spectral peaks in the frequency range from .01 cps to .25 cps were noted. Several previously undiscovered regularities in the spectra of this sample were found. Power spectral peaks occurred at .05, .125, .175, and .225 cps. Also computed were coherencies between signals at all stations. Coherencies above .8 were found between signals recorded at stations more than 2,000 miles apart. The regular features found in the power spectra were also noted in the coherencies. In addition, some spectral line splitting was not obvious in the power spectra appeared in the coherencies. From the evidence presented it is concluded that certain frequency bands of micropulsations are simultaneous over great distances, and probably originate in the outer atmosphere. (Author).

Download or read book U S Government Research Reports written by and published by . This book was released on 1961 with total page 1116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1979 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Notices of Changes in Classification Distribution and Availability written by and published by . This book was released on 1980 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geomagnetic Micropulsations written by J. A. Jacobs and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: The subject of geomagnetic micropulsations has developed extremely rapidly and it is difficult to know when is an appropriate time to pause and assess the sum total of our knowledge-both observational and theoretical. There has in recent years been a tremendous increase in both the quantity and quality of data and also many theoretical ad vances in our understanding of the phenomenon. Undoubtedly there will be further progress in both areas but it seems worthwhile now to review both our knowledge and our ignorance. This book was essen tially completed by the end of April 1969 and tries to give a summary of the subject up to that time. The Earth is enclosed in the magnetosphere, a hollow carved out of the solar wind by the Earth's magnetic field. Above the ionosphere there is a very tenuous thermal plasma of partially ionized hydrogen in diffusive equilibrium with magnetic and gravitational forces, and ener getic protons and electrons that constitute the trapped Van Allen ra diation belts. Throughout this anisotropic and inhomogeneous plasma, natural and man-made electromagnetic energy propagates in a wide variety of modes and frequency bands. This book is concerned with that class of natural signals called geomagnetic micropulsations-short period (usually of the order of seconds or minutes) fluctuations of the Earth's magnetic field.

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.

Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1961 with total page 1180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1965-07 with total page 1698 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1970 with total page 1338 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Publications of the Faculty and Staff written by University of Texas and published by . This book was released on 1959 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Interpretation of Early Magnetic Transients Caused by High altitude Nuclear Detonations written by S. L. Kahalas and published by . This book was released on 1966 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA Scientific and Technical Reports written by United States. National Aeronautics and Space Administration Scientific and Technical Information Division and published by . This book was released on 1966 with total page 1440 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geophysical Abstracts written by and published by . This book was released on 1970 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geophysical Abstracts written by Geological Survey (U.S.) and published by . This book was released on 1970 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Study of Micropulsations in the Earth s Magnetic Field written by Wallace Hall Campbell and published by . This book was released on 1959 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Selected Listing of NASA Scientific and Technical Reports for written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division and published by . This book was released on 1965 with total page 1680 pages. Available in PDF, EPUB and Kindle. Book excerpt: