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Ionospheric heating at Arecibo - First tests.Ionospheric F-region heating by a high-frequency transmitter (100 kW at 5.62 MHz fed into a 1000-ft dish producing a beam with an angular half-width of 10 deg) was observed with a 430-MHz incoherent scatter radar, an ionosonde, and several photometers. The electron temperature of the ionosphere was increased by as much as 30% at and just below the height where the local plasma frequency was equal to the frequency of the heating transmitter. Calculations show time constants of 40 sec for electron heating and less than 10 sec for the cooling at 308 km when the heating transmitter was operated in a pulsed mode.
Document ID
19720027244
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Gordon, W. E.
Showen, R.
(Rice University Houston, Tex., United States)
Carlson, H. C.
(Yale University New Haven,Conn., United States)
Date Acquired
August 6, 2013
Publication Date
November 1, 1971
Publication Information
Publication: Journal of Geophysical Research
Volume: 76
Subject Category
Geophysics
Accession Number
72A10910
Funding Number(s)
CONTRACT_GRANT: NGR-07-004-109
CONTRACT_GRANT: F30602-71-C-0155
Distribution Limits
Public
Copyright
Other

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