Dedicated experiments could involve the monitoring of airglow from high altitude satellites. Such monitoring could detect the depletions resulting from target-of-opportunity launches, and perhaps determine the branching ratios from the H20+ + e dissociative recombination reaction. 3.6.2 LAGOPEDO- Type Releases (Fedder) This type of release is important for the following reasons: 1. The data provides a checkpoint for theoretical and morphological code work. 2. The data can provide one bound on the chemistry calculations and thus a check on their prediction. 3. The data may demonstrate the growth or damping of irregularities and therefore of scintillation phenomena. 4. The data can provide some estimate of ice-vapor fractionation. However, because of the difference in specific enthalpies, this estimate is not directly applicable to the question of condensation in rocket exhausts. Undoubtedly new experiments are necessary and valuable, but complete analysis of the LAGOPEDO data is of primary importance, should have the highest priority, and should be completed at an early date. 3.6.3 Ionospheric Irregularities (Bernhardt) Three types of studies are proposed: 1. Active experiments in the thermosphere. 2. Laboratory studies. 3. Theoretical studies. The object of these studies is to reduce uncertainties in chemistry, transport, and/or temperature change. The chemistry of the ionosphere has been studied for many years. Ion- molecule reaction rates are readily available from laboratory measurements, as are many electron-ion recombination rates, but not the ones of greatest interest here:
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