NARROW-BANDED ELF EMISSIONS AND AURORAL DISTURBANCES

Narrow-banded emissions (f=130-260 Hz), registered on board the Aureol -3 satellite for several years, were received at the auroral zone stat ion Apatity. Comparison with the data of the magnetometer located also in Apatity showed that the emissions were observed just before or at the beginning of a magnetic disturbance. The connection of the observe d emissions with auroral arcs confirms the generation of these emissio ns by the electron beams. The properties of the considered narrow-band ed ELF emissions can be used for the investigation of the electron acc eleration region.