The experiment is conducted to test the effectiveness of GAIM with a 4-D variational approach (4DVAR) in estimation of the ExB drift and thermospheric wind in the magnetic meridional …

This paper provides an overview of the development of the Global Assimilative Ionospheric Model (GAIM) by a team of investigators from the University of Southern California (USC) and the Jet …

2010年2月10日 · JPL/USC GAIM is a physics-based 3-D data assimilation model that uses both four-dimensional variational analysis and Kalman-filter techniques to solve for the ion and …

The GAIM model numerically solves for time evolution of 3-D volume densities of the major ion species, including O+, O2+, N2+, NO+, H+, He+, and electron density. GAIM has been …

2005年12月15日 · In this paper we study a specific implementation of the JPL/USC GAIM Kalman filter (single ion, low-resolution, and input data from 200 ground GPS sites) and validate its …

GAIM is used to estimate the three-dimensional electron density distribution of the Earth's ionosphere as a function of time. To achieve high accuracy for users, the software accepts a …

• JPL now routinely generates calibrated TEC and Abel electron density retrievals using COSMIC data. •Performed GAIM assimilation using data from 200 ground-based GPS and six COSMIC …

The University of Southern Califronia (USC) and the Jet Propulsion Laboratory (JPL) have jointly developed a Global Assimilative Ionospheric Model (GAIM) to monitor space weather, study …

USC/JPL GAIM Brian Wilson, JPL George Hajj, JPL, USC Lukas Mandrake, JPL Xiaoqing Pi, JPL, USC Chunming Wang, USC Gary Rosen, USC Beacon Satellite Symposium, Trieste, …

2010年2月1日 · JPL/USC GAIM is a physics-based 3-D data assimilation model that uses both four-dimensional variational analysis and Kalman-filter techniques to solve for the ion and …