Field-aligned dynamics of chemically induced perturbations to the ionosphere

Details Field-aligned dynamics of chemically induced perturbations to the ionosphere Field-aligned dynamics of chemically induced perturbations to the ionosphere

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jgr....9613887b&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 96, Aug. 1, 1991, p. 13,887-13,900. Research supported by NASA and U.S. N

Other

16

Chemical Release Modules, Electron Attachment, Field Aligned Currents, Ionic Reactions, Ionospheric Disturbances, Photodissociation, Atmospheric Chemistry, Auroral Zones, Carbon Dioxide, F Region, Ion Recombination, Magnetohydrodynamic Flow

Scientific paper

Ionospheric modification using photochemically reactive vapors is studied with a one-dimensional, multiion, fluid model of plasma flow along magnetic field lines. The magnitudes of ion and electron density changes are determined by considering both chemical processes (i.e., photoionization, ion-molecule reactions, dissociative recombination, electron attachment) and transport processes (i.e., multispecies diffusion, electric currents, ambipolar electric fields). The numerical treatment in the model is not specific to any type of release or any interaction chemistry. It has been used to simulate releases of Ba, CO2, and CF3Br in the ionosphere, but generalization to other species may be easily accomplished. The results of the calculations are found to be in good agreement with experimental observations. The feasibility of modifying the parallel current paths in the auroral F region is examined.

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