[SVC42-P08] Ash fall observation using 2D-Video Disdrometer
Keywords:2D-Video Disdrometer, Sakurajima volcano, ash fall, dual-polarization/polarimetric radar, volcanic eruption plume/cloud
On October 14, 2019, ash fall was successfully captured using a 2DVD in Kurokami, Sakurajima. As a result, it was found that a group of small and flat particles existed in the volcanic ash. It is known that a polarimetric parameter called differential reflectivity increases after secession of large particles from volcanic ash plume, and the observation result using 2DVD can be the evidence of this parameter change.
In this presentation, the outline of the observation method using 2DVD and some observation results will be shown.