Physics
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agufmsa33a1145z&link_type=abstract
American Geophysical Union, Fall Meeting 2004, abstract #SA33A-1145
Physics
2415 Equatorial Ionosphere, 2435 Ionospheric Disturbances, 2437 Ionospheric Dynamics, 2443 Midlatitude Ionosphere, 2447 Modeling And Forecasting
Scientific paper
As a part of the validation program in the USU GAIM project, a newly improved Ionospheric Forecasting Model (IFM) was systematically validated by using a large database of the TOPEX TEC measurements. The TOPEX data used for the validation is for the period from August 1992 to March 2003 and the total number of 18-second averaged data is close to 11 million. This model validation work covers a wide range of seasonal (winter, summer, equinox) and solar (low, median, and high F10.7) conditions as well as all UT variations. The validation results indicate that the features of the spatial distrubution of the IFM TEC are systematically consistent to those of the TOPEX TEC. The differences between the IFM TEC and the TOPEX are within 20% for almost all locations and conditions. In many conditions, the differences are even below 10%. This validation work further proves the validity of the IFM for the ionospheric assimilation in the USU GAIM project.
Jee Geonhwa
Scherliess Ludger
Schunk Robert W.
Sojka Jan J.
Thompson Daniel C.
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