Cosmic Ray Results From Huancayo Observatory Peru June 1936 December 1936 Including Summaries From Observatories At Cheltenham Christchurch And Godhavn Through 1946

Author : Scott E. Forbush
Publisher : American Geophysical Union
ISBN 13 :
Total Pages : 504 pages
Book Rating : 4.3/5 (91 download)

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Download or read book Cosmic Rays, the Sun and Geomagnetism written by Scott E. Forbush and published by American Geophysical Union. This book was released on 1993-01-11 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Special Publications Series. This monograph is a tribute to the character and achievements of Scott Ellsworth Forbush (1904-1984) who, almost single-handedly with only technical assistance, laid the observational foundations for an important part of the subject of solar-interplanetary-terrestrial physics. The heart of his research was the meticulous and statistically sophisticated analysis of the temporal variations of cosmic-ray intensity as measured by ground-based detectors at various latitudes and altitudes. Forbush either discovered or put on a firm basis for the first time the following fundamental cosmic-ray effects: The quasi-persistent 27-day variation of intensity.The diurnal variation of intensity. The sporadic emission of very energetic (up to ≈GeV) protons by solar flares. Worldwide impulsive decreases (Forbush decreases) in intensity followed by gradual recovery. The 11-year cycle of intensity and its anticorrelation with the solar activity cycle as measured by sunspot numbers. The 22-year cycle in the amplitude of the diurnal variations.