Physics
Scientific paper
Nov 1968
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1968jatp...30.1843t&link_type=abstract
Journal of Atmospheric and Terrestrial Physics, vol. 30, no. 11, pp. 1843-1856
Physics
1
Scientific paper
Explorer 22 measurements of the electron density and temperature at a height of 1,000 km at night, are used to calculate the total electron content of the tubes of force at different latitudes. The results agree with whistler measurements if the ion composition changes from at least 50% H+ at latitudes below 30°, to about 5% H+ at latitudes above 60°. The tube content is then approximately constant at 1017 electrons/m2 between latitudes of 30 and 50°, with a rapid decrease at lower latitudes and a rapid increase at higher latitudes. Diurnal changes are calculated assuming that there is no change in the total proton content of a tube of force. Diurnal changes in the ionosphere then produce a variation in the O+ to H+ transition level, at medium latitudes, from 500 km at night to 1000 km during the day. This agrees with recent observations. The calculated diurnal change in the density above the Equator is consistent with whistler results. The diurnal change at 1000 km disappears at latitudes between 20 and 50°, agreeing with Explorer 22 and Alouette 1 observations. There is a downwards flow of ionization at night, of an amount almost sufficient to maintain the night ionosphere at latitudes between 20 and 45°.
No associations
LandOfFree
Calculations of diurnal changes in the exosphere 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 Calculations of diurnal changes in the exosphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Calculations of diurnal changes in the exosphere will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1261449