Physics Commons^™

Utah State University Global Assimilation Of Ionospheric Measurements Gauss-Markov Kalman Filter Model Of The Ionosphere: Model Description And Validation, Ludger Scherliess, Robert W. Schunk, Jan Josef Sojka, Donald C. Thompson, Lie Zhu

All Physics Faculty Publications

The Utah State University Gauss-Markov Kalman Filter (GMKF) was developed as part of the Global Assimilation of Ionospheric Measurements (GAIM) program. The GMKF uses a physics-based model of the ionosphere and a Gauss-Markov Kalman filter as a basis for assimilating a diverse set of real-time (or near real-time) observations. The physics-based model is the Ionospheric Forecast Model (IFM), which accounts for five ion species and covers the E region, F region, and the topside from 90 to 1400 km altitude. Within the GMKF, the IFM derived ionospheric densities constitute a background density field on which perturbations are superimposed based on …