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|Title:||Rocket Study of the High Latitude Summer Mesosphere|
Thrane, E. V.
|Abstract:||Experiments conducted in the high latitude summer mesosphere using a Nike-Cajun rocket launched from Andoya (69°17'N) have been described. The rocket payload was instrumented to study the ion composition near the cold summer mesopause and its relation to ambient temperature, ionization production and ionization loss rate. The results show that hydrated protons H+ (H2O) nwith n = 1-6 dominated the ion composition up to 84 km. A rapid transition to NO+ and O2+ dominance took place in the region 84-86 km. Simultaneous measurements of electron density (Ne) and ion-pair production (q) revealed that the transition in ion composition was concurrent with a decrease in ɑeff = q/Ne2 by about a factor 10.|
|ISSN:||0975-105X (Online); 0367-8393 (Print)|
|Appears in Collections:||IJRSP Vol.03(2) [June 1974]|
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