Space Physics

Abstract

The paper describes Finnish attempts to understand phenomena in the near Earth space by using ground-based observations and later observations from space. The geophysical observatories and networks of recording instruments are described as essential tools. During the latest two decades, satellite data have been combined with good results with the ground observations. These achievements are given mainly in the form of references. Finnish research units have contributed in building satellite instruments. Short description of the ongoing space activity in Finland is given.