Modeling Equatorial Spread F: Multiple Bifurcations, Small-Scale Structure, and High Speed Flows

Details Modeling Equatorial Spread F: Multiple Bifurcations, Small-Scale Structure, and High Speed Flows Modeling Equatorial Spread F: Multiple Bifurcations, Small-Scale Structure, and High Speed Flows

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmsa53b1376j&link_type=abstract

American Geophysical Union, Fall Meeting 2006, abstract #SA53B-1376

Physics

2415 Equatorial Ionosphere, 2437 Ionospheric Dynamics, 2447 Modeling And Forecasting

Scientific paper

The Naval Research Laboratory has recently developed a new two-dimensional code to model equatorial spread F: NRLESF2. Two features of this code that differentiate it from earlier simulation codes are (1) it has very low numerical diffusion and (2) the spatial range in altitude can extend from 100 -- 1000 km. Preliminary simulation studies of ESF show new results: multiple bifurcations, secondary structure development, density `bite-outs' of over three orders of magnitude, and high speed flows within low density channels (V ~eq few km/s). We compare our results to observational data.
Research supported by ONR.

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