HR: 0800h
AN: SA51B-0251    [Abstracts]
TI: Comparison of the UAF Ionosphere Model with Incoherent-Scatter Radar Data
AU: * McAllister, J
EM: mcallist@arsc.edu
AF: University of Alaska Fairbanks/ARSC, 909 Koyukuk Drive, Suite 105, Fairbanks, AK 99775-6020 United States
AU: Maurits, S
EM: maurits@arsc.edu
AF: University of Alaska Fairbanks/ARSC, 909 Koyukuk Drive, Suite 105, Fairbanks, AK 99775-6020 United States
AU: Kulchitsky, A
EM: anton@kulchitsky.org
AF: University of Alaska Fairbanks/GI, 903 Koyukuk Drive, Fairbanks, AK 99775-7320 United States
AU: Watkins, B
EM: bjw4072@mailblocks.com
AF: University of Alaska Fairbanks/GI, 903 Koyukuk Drive, Fairbanks, AK 99775-7320 United States
AB: The UAF Eulerian Parallel Polar Ionosphere Model (UAF EPPIM) is a first-principles three-dimensional time-dependent representation of the northern polar ionosphere (>50 degrees north latitude). The model routinely generates short-term (~2 hours) ionospheric forecasts in real-time. It may also be run in post-processing/batch mode for specific time periods, including long-term (multi-year) simulations. The model code has been extensively validated (~100k comparisons/model year) against ionosonde foF2 data during quiet and moderate solar activity in 2002-2004 with reasonable fidelity (typical relative RMS 10-20% for summer daytime, 30-50% winter nighttime). However, ionosonde data is frequently not available during geomagnetic disturbances. The objective of the work reported here is to compare model outputs with available incoherent-scatter radar data during the storm period of October-November 2003. Model accuracy is examined for this period and compared to model performance during geomagnetically quiet and moderate circumstances. Possible improvements are suggested which are likely to boost model fidelity during storm conditions.
UR: http://www.arsc.edu/SpaceWeather
DE: 2435 Ionospheric disturbances
DE: 2447 Modeling and forecasting
DE: 2475 Polar cap ionosphere
SC: SPA-Aeronomy [SA]
MN: 2004 AGU Fall Meeting