The Variation of the Atmospheric Potential Gradient cau ed by the Smoke of the Locomotive Engines

Abstract

The variation of the atmospheric potential gradient caused by the smoke of the locomotive engines was recorded at the Kuts_??_kake Railway Station and at the Kar_??_izawa Meteorological Station (about 400m from the railway). It is almost always positive and reaches to about 2, 000V/m at the railway station and about 300V/m at the meteorological station The density of the space charge in the smoke is about 5esu/m³ at the distance of 50m from the locomotive and about 0.05esu/m³ at the meterological station.