Physical Sciences and Mathematics Commons^™

Plasmasphere And Upper Ionosphere Contributions And Corrections During The Assimilation Of Gps Slant Tec, D. C. Thompson, L. Scherliess, Jan Josef Sojka, Robert W. Schunk

All Physics Faculty Publications

Total electron content (TEC) measurements from ground stations to Global Positioning System (GPS) satellites provide a rich source of information about the Earth's ionosphere. These data comprise a significant part of the typical data set used by various data ingestion and assimilation models of the ionosphere. For example, the Utah State University (USU) Global Assimilation of Ionospheric Measurements (GAIM) data assimilation model uses slant TEC, along with various other types of data, to obtain a global reconstruction of the ionosphere. There are presently two different USU GAIM models: the Gauss‐Markov Kalman Filter (GAIM‐GM), which is operational at the NASA Community …