Physics
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011jgra..11605326m&link_type=abstract
Journal of Geophysical Research, Volume 116, Issue A5, CiteID A05326
Physics
Ionosphere: Midlatitude Ionosphere, Ionosphere: Ionospheric Dynamics, Ionosphere: Ionospheric Disturbances, Ionosphere: Ionospheric Irregularities
Scientific paper
All-sky imaging systems at Arecibo, Puerto Rico (18.3°N, 66.7°W, +28° mag. lat.), and Mercedes, Argentina (34.6°S, 59.4°W, -24.6° mag. lat.), are used to study ionospheric conjugate processes at lower midlatitudes. For the first time in the American sector the simultaneous occurrence in both hemispheres of medium-scale traveling ionospheric disturbances has been observed. The first year of observations yielded 43 nights (˜40%) with simultaneous occurrence of airglow bands. Supporting information from GPS receivers indicate the presence of vertical total electron content variations that correlate with the airglow structures observed with the imagers. Weak phase fluctuations have been measured, indicating that these structures do not produce severe large-scale ionospheric irregularities.
Baumgardner Jeff
Martinis Carlos
Mendillo Michael
Wroten Joei
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