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Douglas S. Robertson Douglas.Robertson@noaa

Recent work on the MAGIC Ionosphere Modeling Software. Douglas S. Robertson Douglas.Robertson@noaa.gov. DD ionosphere: reference and tested solutions 18 February 2005, 162 km baseline (CHSN-MIO1). Minor geomagnetic storm.

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Douglas S. Robertson Douglas.Robertson@noaa

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  1. Recent work on the MAGIC Ionosphere Modeling Software Douglas S. Robertson Douglas.Robertson@noaa.gov

  2. DD ionosphere: reference and tested solutions 18 February 2005, 162 km baseline (CHSN-MIO1) Minor geomagnetic storm DD ionosphere: MPGPS model (residuals with respect to reference ionosphere)

  3. Network geometry N MIO1 • 247-292 km CORS station separation • 135-162 km base-rover distances • The network provides atmospheric corrections to the rover solution 247 162 292 135 158 CHSN CLRE 248 SOWR Distances in Km Test area map (Michigan CORS)

  4. Experiments and test results DD ionospheric correction statistics: percentage of residuals within predefined limits w.r.t. reference ionosphere 2-4 UTC 14-16 UTC

  5. Cors Stations 10/02/05, 817 Stations

  6. Decimated to One Degree Minimum Spacing, 283 stations

  7. Present MAGIC Station List, 187 Stations

  8. Decimated to Two Degree Minimum Spacing, 130 stations

  9. Decimated to Five Degree Minimum Spacing, 44 stations

  10. New 1x1 Station Set Old Station Set

  11. Need to be able to download: • A list of stations available for each day, with • Names, with correct lower case • Coordinates • Quality, i.e., residual size, average availability

  12. Real-time ionosphere modeling

  13. Conclusions: • There are four principal areas where GPS ionosphere modeling is susceptible of significant improvements in the foreseeable future: • Input data • Model parameterization • Computer power • Validation and intercomparison

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