Incoherent Scatter Studies of Mesosphere

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The PI plans to measure D-region parameters using incoherent scatter technique, then using the measured parameters to improve understanding of mesospheric physics, dynamics and aeronomy. Some of the issues involved are: (1) interpretation of incoherent scatter data, (2) derivation of ionospherically interesting parameters, (3) scattering from collision-dominated plasma containing heavy ions, and (4) understanding of mesospheric chemistry in terms of minor constituents and their reactions. The PI will use existing data from Arecibo, as well as experimenting for additional data acquisition. This project will pave the way for a ground-based method of studying temporal variations in mesospheric aeronomy.