Modeling the Low-Latitude Ionosphere and Scintillation Occurrence during the COPEX Campaign

Details Modeling the Low-Latitude Ionosphere and Scintillation Occurrence during the COPEX Campaign Modeling the Low-Latitude Ionosphere and Scintillation Occurrence during the COPEX Campaign

May 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agusmsa43c..05r&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SA43C-05

Other

7863 Turbulence (4490), 7924 Forecasting (2722), 2415 Equatorial Ionosphere, 2447 Modeling And Forecasting

Scientific paper

The COPEX Campaign in Brazil (October to December, 2002) featured an effort to monitor the ionospheric conditions at several points along a geomagnetic field line with digisondes and other instruments, to test our understanding of the structure and dynamics of the low-latitude ionosphere. We have analyzed the ionosonde data to estimate the vertical plasma velocity at Cachimbo, near the geomagnetic equator, and use these velocities to drive the PBMOD model of the low-latitude ionosphere. This model was developed to support the AFRL C/NOFS program, to provide forecasts of the ambient ionospheric plasma density and the strength of radio scintillation. We will discuss the success of the model at predicting scintillation, driven with either empirical velocity models or the measured velocities. We will also show simulated ionograms derived from the model electron density profiles, for Cachimbo as well as two stations on either side of the equator, to show how well the model describes the dynamics of this region of the ionosphere.

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