Fig. 5.From: Composition of volcanic gases emitted during repeating Vulcanian eruption stage of Shinmoedake, Kirishima volcano, JapanVariation of volcanic gas component concentration obtained by the Multi-GAS monitoring station on February 19, 2012. Concentrations are plotted after subtraction of the background concentrations. Drifts of the background concentrations on the SO2 and H2S sensors are also corrected by assuming a linear variation of the zero point with time.Back to article page