Sökning: "geomagnetic storms"
Visar resultat 1 - 5 av 9 avhandlingar innehållade orden geomagnetic storms.
1. Space Weather Physics: Dynamic Neural Network Studies of Solar Wind-Magnetosphere Coupling
Sammanfattning : This thesis presents studies of solar wind-magnetosphere coupling using dynamic neural networks in combination with statistically correlative analysis. The primary contribution of the thesis is dynamic neural network models that can be implemented for near real-time predictions of geomagnetic storms from the solar wind alone. LÄS MER
2. O+ outflow during geomagnetic storms observed by Cluster satellites
Sammanfattning : The region of space dominated by the Sun's magnetic field is called the heliosphere. It envelops the entire solar system including Earth. Therefore, a strong coupling exists between the Sun and our planet. LÄS MER
3. Solar Wind and Geomagnetic Activity - Predictions Using Neural Networks
Sammanfattning : This thesis shows how artificial neural networks (ANNs) can be applied to predict geomagnetic activity from solar-wind data. It introduces and summarizes five papers where development of ANN models are reported, and where predictions of geomagnetic activity are discussed. LÄS MER
4. Magnetic map sense in animals: effects of geographic and magnetic displacements
Sammanfattning : Migration research is a large and diverse field and in my thesis I have focused on the impact of geomagnetic cues on animal orientation, navigation and migratory fuelling. Several animal species from widely different taxa possess the ability to sense and make use of geomagnetic information during migratory or homing events. LÄS MER
5. Space Weather Physics, Prediction and classification of solar wind structures and geomagnetic activity using artificial neural networks
Sammanfattning : This thesis concerns the application of artificial neural network techniques to space weather physics. The networks applied include multi-layer error-backpropagation, radial basis function, and self-organized maps. LÄS MER