An Analysis of Sudden Ionospheric Disturbances Associated with the Proton Flare of 0026 UT, July 7, 1966 PDF Download
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Author: Richard Frank Donnelly
Publisher:
ISBN:
Category : Proton flares
Languages : en
Pages : 72
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Book Description
Author: Richard Frank Donnelly
Publisher:
ISBN:
Category : Proton flares
Languages : en
Pages : 72
Get Book Here
Book Description
Author: Richard Frank Donnelly
Publisher:
ISBN:
Category : Proton flares
Languages : en
Pages : 72
Get Book Here
Book Description
Author: Richard Frank Donnelly
Publisher:
ISBN:
Category : Proton flares
Languages : en
Pages : 40
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Book Description
Author:
Publisher:
ISBN:
Category : Ionosphere
Languages : en
Pages : 588
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Author: John Emory Jones
Publisher:
ISBN:
Category : Doppler radar
Languages : en
Pages : 478
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Book Description
This report describes a radio investigation of traveling ionospheric disturbances carried out near Boulder, Colorado, over a 1-year period from June 1967 to June 1968. The three-dimensional motions of F2 layer disturbances were measured by the high frequency Doppler technique with spaced transmitters and at several probing frequencies. Horizontal motions were determined by cross-correlating three signals on frequencies near 5 MHz, whose reflection points were approximately at the corners of a horizontal equilateral triangle with 40-km sides. Vertical motions were determined from cross-correlation of signals on frequencies of 3.3, 4.0, and 5.1 MHz, whose reflection points were aligned vertically.
Author: United States. Environmental Science Services Administration
Publisher:
ISBN:
Category :
Languages : en
Pages : 72
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Author: Richard Frank Donnelly
Publisher:
ISBN:
Category : Atmospheric radiation
Languages : en
Pages : 52
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Book Description
High time and intensity resolution satellite measurements of X-ray and extreme ultraviolet (EUV) radiation during solar flares are studied to determine the wavelength dependence of the flare radiation responsible for sudden frequency deviations (SFD). SFD's measure the flare-induced effects in the E and F1 regions of the ionosphere and are in effect like a broadband (1-1030 Å) detector for impulsive flare enhancements. He II 303.8 Å, O V 629.7 Å, H Ly [upsilon] 972.5 Å, C III 977.0 Å, and H Ly [alpha] 1215.7 Å were found to have essentially the same time dependence as the total ionizing radiation producing SFD's, except that they decay faster than the net 1-1030 Å radiation. Flare enhancements of Fe XV 284.1 Å, Fe XVI 335.3 Å, Si XII 499.3 Å. Mg X 625.3 Å, and Ne VIII 770.4 Å, which are normally coronal lines, appear to have a much slower time dependence than the radiation responsible for SFD's. X-rays in the 0.5-3 Å range are slightly slower than the radiation responsible for SFD's during the decay stage; 1-8 Å X-ray flares are slower, especially during the decay stages; and 8-20 Å flare radiation enhancements are slower throughout the entire SFD.
Author: Richard Frank Donnelly
Publisher:
ISBN:
Category : Solar flares
Languages : en
Pages : 108
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Author: United States. National Oceanic and Atmospheric Administration
Publisher:
ISBN:
Category :
Languages : en
Pages : 108
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Author:
Publisher:
ISBN:
Category : Geophysics
Languages : en
Pages : 316
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