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Inspec keywords: geomagnetism; sunspots; radiowave propagation; time series; solar activity; multilayer perceptrons; ionospheric electromagnetic wave propagation; geophysical signal processing
Subjects: Radiowave propagation; Computer vision and image processing techniques; Neural computing techniques; Sunspots, faculae, plages; Ionospheric electromagnetic wave propagation; Geophysics computing; Data and information; acquisition, processing, storage and dissemination in geophysics