Continuous Measurement of Atmospheric Nitrogen Oxides (NO_x) at Syowa Station in East Antarctica

Abstract

For the purpose of monitoring the global atmospheric air pollution on the earth, the atmospheric nitrogen oxides at Syowa Station in East Antarctica were continuously measured by the 16th Japanese Antarctic Research Expedition (JARE) during the wintering period in 1975. In the period of early July to mid September the regular variation of the atmospheric NO_x concentration was clearly observed whenever a blizzard hits Lutzow-Holm Bay. This variation would indicate the possible existence of NO_x compounds that have been transported from the lower latitudes by a cyclone.