Physics
Scientific paper
May 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusmsa23a..07a&link_type=abstract
American Geophysical Union, Spring Meeting 2005, abstract #SA23A-07
Physics
2400 Ionosphere, 2435 Ionospheric Disturbances, 2443 Midlatitude Ionosphere, 2447 Modeling And Forecasting
Scientific paper
The empirical International Reference Ionosphere (IRI) model is a widely used standard for ionospheric parameters. It's most recent version includes a storm-time foF2 correction model (STORM) driven by the time-history (previous 33 hours) of magnetic activity as represented by the ap magnetic indices. The model was developed with ionosonde data from the time period prior to 2001 and reproduces the most consistent ionospheric effects of magnetic storms. An evaluation of the model with ionosonde data for the 2001 storm-time periods showed an overall improvement of IRI predictions by 50%. With the present study we are continuing this validation effort now looking at the storms during the 2002 to 2004 time period. This period includes 23 magnetic disturbance events with ap greater than 100 and 6 events with ap greater than 230. We have compared the IRI predictions against the observations from several stations distributed along different latitudes. A statistic summary of this comparison will summarize this study.
Araujo E.
Bilitza Dieter
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