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A good deal of our information on solar physics and on solar phenomena is derived from the solar spectrum. A quantitative interpretation of this spectrum was only possible after 1920, after the establishment of Bohr's atomic model, the discovery of Saha's law, and the development of spectrophotometry. The resolving and light gathering powers of our instruments have greatly increased since. We have seen an enormous progress in our theoretical under standing of basic atomic phenomena, and of the intricate problems concerned with the transfer of energy through a complicated structure like the sun's outer layers. In particular the observable part of the solar spectrum tremen dously enlarged sinc...
Primarily intended for the undergraduate and postgraduate students of Physics, Space Physics, Astronomy and Space Physics, Astrophysics, Engineering Physics and Earth System Sciences, this concise and systematically organized text covers all the essential aspects of physical and chemical processes in the planetary spheres. This book is an attempt to collect various topics of solar system and planetary physics at one place in a comprehensive manner. It describes the phenomena of planetary atmospheres, ionospheres and magnetospheres. NEW TO THE SECOND EDITION The second edition, while retaining the thorough coverage of the various areas of space physics—Sun and its emissions, basic character...
An interim summary of the ozone climate over North America has been prepared from AFCRL ozonesonde network observations made during 1963 and 1964 (AD-435 873, -604 880, -623 018). Mean bimonthly distributions of ozone density computed for individual network stations depict the average ozone structure as a function of altitude and season for the first two years of network operation. Data are also presented on the standard deviation of ozone density and the mean seasonal distributions along a meridional cross section extending from the Canal Zone to Greenland. A brief statistical analysis indicates that approximately 35 to 50 percent of the variance in the total ozone amount at middle and high latitudes is given by the fluctuations in ozone density in the 11- to 13-km or 13- to 15-km layers. (Author).
A multitude of processes that operate in the upper atmosphere are revealed by detailed physical and mathematical descriptions of the interactions of particles and radiation, temperatures, spectroscopy and dynamics.