5:15 PM - 6:30 PM
[SVC47-P26] Continuous soil diffuse CO2 flux measurement at Aso volcano, Japan
Keywords:Aso volcano, volcanic gas, CO2 diffuse degassing
We set up a CO2 flux station (West systems, Italy) for continuous monitoring of soil CO2 diffuse degassing at Aso volcano, Japan, in early Jan. 2016. The station was set about 1 km south-west from the rim of a currently active crater of Mt. Nakadake near Hondo observatory of Kyoto University. The station is powered by solar panel system and measures the soil CO2 flux every hour by the accumulation chamber method together with various meteorological parameters such as air temperature, air pressure, humidity, precipitation, wind speed and etc. At least until mid Feb. 2016, the CO2 flux has been low ranging below 0.28 moles/m2/day. In the presentation we will introduce our measurement at Aso volcano, discuss influence of various meteorological elements to the diffuse CO2 flux, and compare the flux with the volcanic activities of Aso volcano.