Neutral upper atmosphere structure

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Abstract

This review summarizes major contributions by the United States during the period 1967 to 1970 that deal with the structure of the neutral atmosphere above 90 km (the thermosphere and exosphere). An effort has been made to minimize possible overlap with the other reviews presented here, i.e., neutral atmosphere dynamics, hydrogen in the upper atmosphere, aurora and airglow, and various reviews in meteorology. Comprehensive reviews of recent results have been given by Champion [1968, 1969, 1970] on the lower thermosphere and by Jacchia [1968, 1969, 1970b] on the thermosphere and lower exosphere.

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