Physics
Scientific paper
Jul 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990acgsn..33..384l&link_type=abstract
Acta Geophys. Sin., Vol. 33, No. 4, p. 384 - 390
Physics
Earth Ionosphere: Solar Eclipses
Scientific paper
During the annular eclipse of Sep 23, 1989, several kinds of observation, such as TEC and Doppler measurements in a three-station network as well as a rapid-run ionosonde, were simultaneously carried out at Wuhan Ionospheric Observatory to observe the ionospheric effects of the eclipse. Both the horizontal propagation and the vertical evolusion of the traveling ionospheric disturbances (TIDs) after the solar eclipse are investigated in detail. It is found that the TIDs in different ionospheric heights propagated to, instead of from, the central band of the eclipse with downward phase velocities. This may imply that the sources of the TIDs are located in the lower atmosphere far from the eclipse band.
Li Jun
Li Libin
Ning Baiqi
Wan Weixing
Wu Zhenhua
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