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GFZ Space Weather Themes

Radiation Beld Modelling (Section 2.7)

The ring current is an electric current encircling the Earth at the distances between ~3 and ~5 Earth’s radii from the center of the Earth in the equatorial plane. It is a crucial component in our understanding of the magnetosphere dynamics and geomagnetic storms, and it can also affect human infrastructures such as high-latitude power grids or currently operating communication or navigation satellites. In our group, we use the four-dimensional Versatile Electron Radiation Belt (VERB-4D) code to model the dynamics of the ring current.

Data Assimilation (Section 2.7)

Analysis of radiation belt observations present a major challenge, as satellite observations are often incomplete, inaccurate and have only limited spatial coverage. Nevertheless, through data assimilation observations can be blended with information from physics-based models, in order to fill gaps and lead to a better understanding of the underlying dynamical processes. We have developed a scheme that enables efficient data assimilation from multiple satellite missions into the state-of-the-art partial differential equation-based model of the inner magnetosphere Versatile Electron Radiation Belt (VERB-3D).

Ring Current Modelling (Section 2.7)

The ring current is an electric current encircling the Earth at the distances between ~3 and ~5 Earth’s radii from the center of the Earth in the equatorial plane. It is a crucial component in our understanding of the magnetosphere dynamics and geomagnetic storms, and it can also affect human infrastructures such as high-latitude power grids or currently operating communication or navigation satellites. In our group, we use the four-dimensional Versatile Electron Radiation Belt (VERB-4D) code to model the dynamics of the ring current.