ERUPTED GAS CONCENTRATION ESTIMATE FOR THE VOLCANO SAKURAJIMA USING UAV

摘要

Sulfur dioxide emission accompanying the eruption of Sakurajima became a serious problem. However, the temporal change of the sulfur dioxide concentration spatial distribution is still not sufficient. On January 15, 2017, the authors implemented fieldwork to estimate sulfur dioxide concentration using UAV (Phantom 4) at Sakurajima volcano. The concentration of sulfur dioxide in each was estimated using images taken with UAV, MODIS data and digital camera images. The band used in this study is RGB, NIR total of 4 bands. As a result, UAV proved to be very useful for estimating sulfur dioxide. This skill would be improved with the automatic navigation.