Measurements of the electrode effect over flat, snow-covered ground

Abstract Space charge density profiles up to 3 m above ground were recorded with the Obolensky-filter method. A measuring technique with two instruments was used, where one reference instrument was placed on a fixed level and the other was moved up and down. The space charge difference between the reference and the actual level, and the correlation coefficient were calculated. From the analysis of the recordings, made under very similar atmospheric and ground conditions (snow-covered ground), we found strong evidence for the existence of the electrode effect. Very good agreement between the experimental results and theoretical calculations were observed.