Author: Hermann EbertPublisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
Concerning Pulsations of Short Period in the Strenght of the Earth's Magnetic Field
Author: Hermann EbertShort-period Pulsations of the Earth's Electromagnetic Field
Author: AlekseÄ Georgievich KalashnikovPublisher:
ISBN:
Category : Geomagnetism
Languages : en
Pages : 148
Book Description
Geomagnetic Micropulsations
Author: J. A. JacobsPublisher: Springer Science & Business Media
ISBN: 3642868282
Category : Science
Languages : en
Pages : 187
Book Description
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.
Terrestrial Magnetism and Atmospheric Electricity
Author: Publisher:
ISBN:
Category : Atmospheric electricity
Languages : en
Pages : 456
Book Description
Short-period Fluctuations of the Earth's Magnetic Field from Data at Several Observatories and for Periods of Sunspot Minimum and Maximum
Author: Scott E. ForbushPublisher:
ISBN:
Category : Magnetic anomalies
Languages : en
Pages : 20
Book Description
Theory of Long-Period Magnetic Pulsations (Classic Reprint)
Author: Satoshi HamaguchiPublisher: Forgotten Books
ISBN: 9780260299352
Category : Science
Languages : en
Pages : 44
Book Description
Excerpt from Theory of Long-Period Magnetic Pulsations The magnetic pulsations have been known for over a hundred years. Historically such rapid changes in the earth's magnetic field were first reported by B. Stewart in 1861. He reported a large magnetic storm recorded at the Kew Observatory in England. It is shown in this report that the magnitude of the magnetic field fluctuations is of several hundred 7 (17 10'5gauss) and their typical time scale is on the order of few minutes. In particular, during the International Geophysical Year (igy) in 1957 - 1958 and in the succeeding years, the international collaboration on the earth's geophysical study became established and the global observation of the geomagnetic field variations such as magnetic pulsations began to be made. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
On the Theory of Internal Pulsations of the Earth and Certain Variations of the Earth's Magnetic Field
Author: Georges G. DubourdieuPublisher:
ISBN:
Category : Earth
Languages : en
Pages : 62
Book Description
Annual Report of the Director
Author: Carnegie Institution of Washington. Department of Terrestrial MagnetismPublisher:
ISBN:
Category : Geomagnetism
Languages : en
Pages : 268
Book Description
Results of Meteorological and Magnetical Observations ...
Author: Natural Electromagnetic Phenomena below 30 kc/s
Author: David Franklin BleilPublisher: Springer
ISBN: 1489964258
Category : Science
Languages : en
Pages : 472
Book Description