Physics
Scientific paper
Oct 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000jastp..62.1351d&link_type=abstract
Journal of Atmospheric and Solar-Terrestrial Physics, Volume 62, Issue 15, p. 1351-1359.
Physics
Scientific paper
Electron temperature (Te) and electron density (Ne) measurements from the Japanese Astronomy Satellite HINOTORI for the high-solar activity period (February-November, 1981) are examined exclusively to study anomalous electron temperature enhancements observed in the topside ionosphere around 600km in altitude. Basically, Te enhancements are categorised into two types. The first type is where anomalous Te enhancements are found to be as high as 3000K above the average level over the South American Magnetic Field Anomaly zone (SAMA) on several occasions; however, less marked enhancements were observed over other longitudes in both the hemispheres with a strong bias in 20 to /30° geomagnetic latitude belt. Te enhancements, especially of larger magnitudes, are mainly observed during May-July months (southern winter) in SAMA during evening hours. Generally, Ne shows a decreasing trend during the periods of Te enhancement but it is noted that the magnitude of Te enhancement in such cases is not proportional to the corresponding decreases in Ne. The second type of Te enhancements are observed, mostly during evening hours of equinoctial months, on both sides of the equator collocated with the crests of the well-known equatorial ionization anomaly (EIA). The magnitude of temperature enhancements of second type is found to be proportional to the corresponding electron density enhancements. The results are presented and discussed in terms of zonal winds, winter anomaly in electron density and electrodynamical drift.
Dabas R. S.
Lakshmi Rajya D.
Oyama Koh-Ichiro
Reddy Babu M.
No associations
LandOfFree
Study of anomalous electron temperature variations in the topside ionosphere using HINOTORI satellite data does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Study of anomalous electron temperature variations in the topside ionosphere using HINOTORI satellite data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Study of anomalous electron temperature variations in the topside ionosphere using HINOTORI satellite data will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-874875