Physics
Scientific paper
Feb 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987p%26ss...35..241m&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 35, Feb. 1987, p. 241-244.
Physics
5
Atmospheric Temperature, Auroras, Midlatitude Atmosphere, Night Sky, Thermosphere, Cross Correlation, Magnetic Disturbances, Radii, Temperature Measurement
Scientific paper
The thermospheric response to the energy input into the polar regions can be studied by monitoring the thermospheric temperature at midlatitudes using optical techniques. During the course of thermospheric temperature measurements at Albany, New York it was noticed that an increase in the auroral oval radius is followed by an increase in the thermospheric temperature. In order to obtain a possible relationship between the midlatitude thermospheric temperature and the location of the auroral oval (that is in turn related to the energy input into the polar region), a crosscorrelation analysis of temperature measurements and the oval radius was done for time lags from 0 to 75 min, at 15 min intervals. The results show that the correlation coefficient ranged between 0.38 and 0.79 for different time lags, with the best coefficient at a time lag of about 45 min, and that for every 1 deg change in the radius of the oval, the temperature varies by about 137 K.
Kim Jinyoung Serena
Murty S. N. G.
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