Physics
Scientific paper
Sep 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989georl..16.1019b&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 16, Sept. 1989, p. 1019-1022.
Physics
51
Incoherent Scatter Radar, Ionospheric Composition, Optical Radar, Radar Measurement, Sporadic E Layer, Atmospheric Stratification, Ionospheric Electron Density, Sodium, Vertical Distribution
Scientific paper
During the early morning of January 16, 1989 the Arecibo 430-MHz incoherent scatter radar and the University of Illinois CEDAR Na lidar were operated simultaneously for several hours at Arecibo. At approximately 0425 LST a sporadic E(S) layer began forming near 101 km altitude and moved steadily downward, reaching an altitude of 99 km by 0500 LST. The electron abundance of the E(S) layer increased rapidly from approximately 3 x 10 to the 9th/sq cm at 0510 LST to approximately 6 x 10 to the 9th/sq cm by 0530 LST. During this same time period a sporadic Na layer formed at the same altitude as the E(S) layer.
Beatty Timothy J.
Collins Richard L.
Gardner Chester S.
Hostetler Chris A.
Sechrist Chalmers F. Jr.
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