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Other operational space weather products generated using output from the Geospace model include the Geospace Global Geomagnetic Activity Plot and the Geospace Magnetosphere Movies. The Geospace Ground Magnetic Perturbation Maps represent the first generation of operational space weather products derived from the Geospace model, a model which includes both global and regional short-term predictions of geomagnetic activity. In the gap region the field aligned currents are assumed to flow roughly along the dipole field. The gap region is located between the inner boundary of the MHD model at 2.5 Re and the ionosphere model at ~1 Re.

The Rice Convection Model (RCM), an inner magnetosphere ring-current model developed at Rice Universityįor local magnetic perturbations, the magnetic field on the ground is not directly modeled instead, the magnetic disturbances are derived from currents in the MHD domain, the field-aligned currents (FACs) in the gap region between the MHD domain and the ionosphere, and the ionospheric Hall and Pedersen currents.

The Ridley Ionosphere electrodynamics Model (RIM) developed at Michigan.

The University of Michigan’s BATS-R-US magnetohydrodynamic (MHD) model of the magnetosphere.

The Geospace model is a first-principles physics-based model which includes three components: This product uses output generated by the University of Michigan’s Geospace model that consists of several components in their Space Weather Modeling Framework (SWMF). Ground magnetic perturbation maps such as those displayed here are useful for providing regional disturbance model forecasts that can be used by power grid operators to determine if disturbances are likely to have impacts at their general location.įor additional space weather products generated using output from the Geospace model, see the following pages: The animations show the model forecast, where the lead time depends on the solar wind speed, as well as the previous two hours for context.

Using these data, colored contour plots of the predicted delta B are generated for three different views: delta B over North America (top panel), a global view of delta B (middle panel), and a dual polar view of the north and southern hemispheres oriented in fixed local time (bottom panel). The Geospace Ground Magnetic Perturbation Maps display the gridded magnetic delta B (nT) output from the University of Michigan’s Geospace model, which provides regional magnetic variations on a five-by-five degree global grid.