Other
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsm11a1595j&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #SM11A-1595
Other
2722 Forecasting (7924, 7964), 2753 Numerical Modeling, 2768 Plasmasphere, 3245 Probabilistic Forecasting (3238), 7924 Forecasting (2722)
Scientific paper
The plasmasphere is an important component of the intricate web of interacting processes which cause and are space weather. It is the medium of propagation for waves which are responsible for acceleration and decay of the radiation belts, it causes surface charging, and even affects orbital decay. Although the time-scales in the plasmasphere are significantly larger than for many other magnetospheric regions, the plasmasphere still exhibits significant dynamics, and capturing these dynamics is important in predicting the effects of the plasmasphere. In this paper we will discuss using data assimilation techniques to model the plasmasphere. In particular we will explore using a simple plasmasphere model (Ober et al., 1997) in combination with ensemble Kalman filtering techniques (e.g. Evensen, 2003). The ultimate goal is to produce a physics-based model in which only unknown external inputs are adjusted to maximize agreement between model and data. We will discuss data sources as well as progress to date.
Friedel Reiner H.
Jorgensen Anders Moller
Koller Josef
Ober D.
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