Author:
Publisher:
ISBN:
Category : Electric waves
Languages : en
Pages : 1028

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Author: Hermine Vloemans
Publisher: Springer Science & Business Media
ISBN: 9401022313
Category : Science
Languages : en
Pages : 308

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Sudden Ionospheric Disturbances resulting from an interaction of the Solar Flare radiation with the constituents of the upper atmosphere constitute one of the three major aspects of ground level monitoring of solar flares -the other two being optical observations of flares, and the observations of solar bursts in radio wavelengths. SIDs, therefore, form a major part of flare monitoring programme in many observatories. Unlike the other two, however, the ionospheric effects of flares provide one major additional source of interest - the reaction of the ionospheric plasma to an impulsive ionization. The high atmosphere provides a low pressure laboratory without walls in which a host of reactions occur between electrons, ions and neutral particles. The resulting products and their distributions may bear no resemblance to those of the primary neutral constituents or their direct ionization products. The variations with the time of the day, with season and with solar activity that form the bulk of the ionospheric measurements are too slow to allow any insight into the nature of these ionospheric reactions whose lifetimes are often very short. The relaxation time of the ionospheric ionization is only a few minutes or fraction of a minute in the lower ionosphere and in the E-region and is about 30 min to an hour at 300 km. The flares provide a sudden short impulse comparable to these time scales.

Author: Kenneth Davies
Publisher: IET
ISBN: 9780863411861
Category : Science
Languages : en
Pages : 612

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Book Description
This introductory text replaces two earlier publications (Davies 1965, 1969). Among the topics: characteristics of waves and plasma, the solar-terrestrial system, the Appleton formula, radio soundings of the ionosphere, morphology of the ionosphere, oblique propagation, importance of amplitude and phase, earth-space propagation. Annotation copyrighted by Book News, Inc., Portland, OR

Author:
Publisher:
ISBN:
Category : Geophysics
Languages : en
Pages : 442

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Author:
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 332

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Author: M. A. Shea
Publisher:
ISBN:
Category : Geophysical observatories
Languages : en
Pages : 478

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The solar-terrestrial environment is monitored by a wide variety of scientific sensors located throughout the world and on space platforms. This second edition of the Directory of Solar-Terrestrial Physics Monitoring Stations presents detailed information for 1163 sensors used to monitor this environment. The scientific disciplines covered are solar and interplanetary phenomena, ionospheric phenomena, flare-associated events, geomagnetic variations, aurora, cosmic rays, airglow, and miscellaneous related phenomena such as atmospheric ozone. The following summary station tables are also given: master station list, alternate name list, listing by subdiscipline, and a list of stations closed since the first directory was published in 1977. In addition, a status report summarizes the relative decrease in solar-terrestrial physics monitoring activities since 1976. Keywords: Solar-terrestrial physics; Solar phenomena; Solar activity; Cosmic rays; Aurora; Geomagnetic activity; Ionospheric phenomena; Solar-terrestrial data; Solar-terrestrial monitoring; Interplanetary phenomena; Solar flares; and Airglow.

Author: Nihon Gakujutsu Kaigi. Denrisö Kenkyu Renraku Iinkai
Publisher:
ISBN:
Category : Ionosphere
Languages : en
Pages : 594

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Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 668

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Author: Tōkyō Daigaku. Uchū Kōkū Kenkyūjo. Taiyō Chikyū Semmon Iinkai
Publisher:
ISBN:
Category : Ionosphere
Languages : en
Pages : 412

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Author: Nihon Gakujutsu Kaigi. Denrisö Kenkyū Renraku Iinkai
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 880

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