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Two days in the life of the ionosphere over Arecibo
Author(s) -
Swartz Wesley E.,
Ioannidis George A.,
Shen Jenny S.,
Brice Neil M.,
Rowe John F.
Publication year - 1974
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs009i008p00769
Subject(s) - quiet , ionosphere , incoherent scatter , electron density , geodesy , period (music) , physics , atmospheric sciences , ionospheric sounding , meteorology , environmental science , geology , electron , geophysics , astronomy , acoustics , quantum mechanics
High resolution incoherent scatter electron density data using Barker‐coded pulses are presented for two separate 24‐hr periods of very different magnetic conditions. The first period in April 1972 was magnetically quiet while the second period spanned parts of two of the five most magnetically disturbed days in July 1972. Solar activity was low with 2800‐MHz indices of 129 and 128 for the April days and indices of 109 and 117 for the July days. Contour plots and selected profiles are presented which show larger sporadic‐ E layers and stronger gravity wave effects during the disturbed night than during the quiet night.