F region above Kauai - Measurement, model, modification

Details F region above Kauai - Measurement, model, modification F region above Kauai - Measurement, model, modification

Aug 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980jgr....85.4205j&link_type=abstract

Journal of Geophysical Research, vol. 85, Aug. 1, 1980, p. 4205-4213. Research supported by the U.S. Department of Energy;

Physics

Atmospheric Models, F Region, Ionospheric Composition, Rocket Exhaust, Combustion Products, Hawaii, Ionospheric Ion Density, Midlatitude Atmosphere

Scientific paper

Results of the Lagopedo II experiment conducted from Kauai, Hawaii to investigate the ionospheric modification that occurs when rocket combustion products are introduced into the O(+)-rich F region are presented. The experiment involved the detonation of a chemical explosion in the F2 peak accompanied by rocket-borne measurements of ion composition and electron content in the vicinity of the explosion. The experimental data is found to be in good agreement with the predictions of a model of the nighttime ion densities in the midlatitude laminar ionosphere, with the exception of N2(+) densities before the explosion. H2O(+) and H3O(+) currents produced by considerable H2O outgassing from the rocket are used to determine a H3O(+)/H2O(+) dissociative recombination rate averaging 1.6 to 1.08, depending on model assumptions. At the time of the explosion, an ionic void 1 km in radius is observed, the boundary of which is characterized by a steep gradient in ionic densities. Evidence of variations in the concentrations of ambient ion species, new reactant species and ionic depletion by sweeping is also obtained.

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