Modeling 3D Artificial Ionospheric Ducts

Details Modeling 3D Artificial Ionospheric Ducts Modeling 3D Artificial Ionospheric Ducts

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsa41b1870z&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SA41B-1870

Other

[2403] Ionosphere / Active Experiments, [2447] Ionosphere / Modeling And Forecasting, [2467] Ionosphere / Plasma Temperature And Density

Scientific paper

The injection of powerful HF waves into the ionosphere leads to strong electron heating followed by a depletion of electrons in the heated region. This can create a pressure perturbation which propagates along the entire magnetic field line, enhancing refractive indices and acting as a waveguide to whistler-range waves. These perturbations are known as artificial ducts. Duct formation due to HF heating has previously been studied using a version of Sami2 is Another Model of the Ionosphere (SAMI2) modified to include a flexible source of HF heating. We extend this study to look at the formation of artificial ducts by HF heating in a 3D model using a similarly modified version of SAMI3. We examine how heating over Arecibo can create interhemispheric ducts along magnetic field lines. Acknowledgements: This work was sponsored by the Office of Naval Research.

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