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Author: C. de Jager
Publisher: Springer
ISBN: 9401763763
Category : Science
Languages : en
Pages : 423
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Book Description
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 since the introduction, in the years after 1945, of radio astronomy, enabling us to study the solar spectrum between wavelengths of some mm to about 15 m, of space research, giving access to the whole electro magnetic spectrum below 3000 A, down to about 0. 01 A. Further, the low and high energetic components of the solar particles spectrum have been dis covered with space probes (the solar wind), rockets, balloons (the so-called sub cosmic-ray particles) and cosmic ray monitors (solar cosmic ray bursts). The extreme wealth of this spectrum, much vaster in extent than the earlier investigators could only dream of, is an important source of information. It looked appropriate to us, after the rapid development of this branch of science, ' to invite the world's leading solar physicists to Utrecht for a summa rizing symposium on the whole solar spectrum.
Author: C. de Jager
Publisher: Springer
ISBN: 9401763763
Category : Science
Languages : en
Pages : 423
Get Book Here
Book Description
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 since the introduction, in the years after 1945, of radio astronomy, enabling us to study the solar spectrum between wavelengths of some mm to about 15 m, of space research, giving access to the whole electro magnetic spectrum below 3000 A, down to about 0. 01 A. Further, the low and high energetic components of the solar particles spectrum have been dis covered with space probes (the solar wind), rockets, balloons (the so-called sub cosmic-ray particles) and cosmic ray monitors (solar cosmic ray bursts). The extreme wealth of this spectrum, much vaster in extent than the earlier investigators could only dream of, is an important source of information. It looked appropriate to us, after the rapid development of this branch of science, ' to invite the world's leading solar physicists to Utrecht for a summa rizing symposium on the whole solar spectrum.
Author: Charlotte Emma Moore
Publisher:
ISBN:
Category : Spectrum analysis
Languages : en
Pages : 388
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Book Description
Author: Muhammad Iqbal
Publisher: Elsevier
ISBN: 0323151817
Category : Science
Languages : en
Pages : 409
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Book Description
An Introduction to Solar Radiation is an introductory text on solar radiation, with emphasis on the methods of calculation for determining the amount of solar radiation incident on a surface on the earth. Topics covered include the astronomical relationship between the sun and the earth; thermal radiation; the solar constant and its spectral distribution; and extraterrestrial solar irradiation. This book is comprised of 12 chapters and begins with an overview of the trigonometric relationships between the sun-earth line and the position of an inclined surface, followed by a discussion on the characteristics of blackbody radiation. The next chapter focuses on the solar constant and its spectral distribution, paying particular attention to extraterrestrial solar spectral irradiance and the sun's blackbody temperature. Subsequent chapters explore extraterrestrial and radiation incident on inclined planes; the optics of a cloudless-sky atmosphere; solar spectral radiation and total (broadband) radiation under cloudless skies; and solar radiation arriving at horizontal surfaces on the earth through cloudy skies. The ground albedo and its spectral and angular variation are also described, along with insolation on inclined surfaces. The last chapter is devoted to instruments for measuring solar radiation, including pyrheliometers and pyranometers. This monograph will serve as a useful guide for energy analysts, designers of thermal devices, architects and engineers, agronomists, and hydrologists as well as senior graduate students.
Author: Elena Aleksandrovna Makarova
Publisher:
ISBN:
Category : Solar constant
Languages : en
Pages : 260
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Book Description
Author: Charlotte Emma Moore
Publisher:
ISBN:
Category : Spectrum analysis
Languages : en
Pages : 184
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Book Description
This report presents the final listing of solar lines recorded in the NRL echelle spectra photographed at high resolution from Aerobee rockets flown in 1961 and 1964. The wavelength range covered is 3069Å to 2095Å. It is intended to accompany NRL report numbers 7788, 'An Atlas of the Solar Spectrum Between 2226 and 2992 Angstroms,' which presents the solar irradiance at 0.03 Å resolution as derived from the echelle spectra. Solar wavelengths are given to 0.01 Å, and estimated solar intensities are listed on a visual scale of 1 to 9. Identifications have been made from a detailed study of the multiplets in individual spectra and are based on a search of the spectroscopic literature. Laboratory wavelengths, multiplet numbers, and references are cited for each line. Approximately 6150 lines are reported, of which 80% are identified.
Author: Harold D. Babcock
Publisher:
ISBN:
Category :
Languages : en
Pages : 94
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Book Description
Author: Gustav Kirchhoff
Publisher:
ISBN:
Category : Chemical elements
Languages : en
Pages : 54
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Book Description
Author: Gustav Kirchhoff
Publisher:
ISBN:
Category : Chemical elements
Languages : en
Pages : 34
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Book Description
Author: Gustav Robert Kirchhoff
Publisher:
ISBN:
Category :
Languages : en
Pages : 32
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Book Description
Author: Matthew Pothen Thekaekara
Publisher:
ISBN:
Category : Aeronautics in astronomy
Languages : en
Pages : 100
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Book Description
The solar constant and solar spectrum were measured from a research aircraft flying at 38,000 feet, above the highly variable and absorbing constituents of the atmosphere. A wide range of solar zenith angles was covered during six flights for over 14 hours. Eleven instruments, five for total irradiance and six for spectral irradiance, were employed. The instruments complemented each other in the measuring techniques employed and wavelength range covered, and were calibrated and operated by different experimenters. The combined results of these experiments are presented, and also a proposed standard for the solar constant and zero air mass solar spectral irradiance. The solar constant is found to equal 135.3 mW cm−2 or 1.90 cal min−1 cm−2
