Modeling of the plasmasphere dynamics

Dissertation, Universität Potsdam, 2020

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1. Verfasser: Zhelavskaya, Irina (VerfasserIn)
Körperschaft: Universität Potsdam (Grad-verleihende Institution)
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Sprache:eng
Veröffentlicht: Potsdam 2020
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Zusammenfassung:Dissertation, Universität Potsdam, 2020
The plasmasphere is a dynamic region of cold, dense plasma surrounding the Earth. Its shape and size are highly susceptible to variations in solar and geomagnetic conditions. Having an accurate model of plasma density in the plasmasphere is important for GNSS navigation and for predicting hazardous effects of radiation in space on spacecraft. The distribution of cold plasma and its dynamic dependence on solar wind and geomagnetic conditions remain, however, poorly quantified. Existing empirical models of plasma density tend to be oversimplified as they are based on statistical averages over static parameters. Understanding the global dynamics of the plasmasphere using observations from space remains a challenge, as existing density measurements are sparse and limited to locations where satellites can provide in-situ observations. In this dissertation, we demonstrate how such sparse electron density measurements can be used to reconstruct the global electron density distribution in the plasmasphere and capture its dynamic dependence on ...
Beschreibung:kumulative Dissertation
Beschreibung:xlii, 256 Seiten
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