Measurement of flow motion in convective cells and volcanic plumes by using a ship radar

Koji Sassa

Presentation information

[J] Poster

M (Multidisciplinary and Interdisciplinary) » M-TT Technology & Techniques

[M-TT38] Multi sensing of extreme phenomena

Wed. May 28, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

convener:Hirohiko Nakamura(Faculty of Fisheries, Kagoshima University), Haruhisa Nakamichi(Disaster Prevention Research Institute, Kyoto University), Takeshi Maesaka(National Research Institute for Earth Science and Disaster Resilience), Masayuki Maki(Disaster Prevention Research Institute, Kyoto University)

5:15 PM - 7:15 PM

[MTT38-P02] Measurement of flow motion in convective cells and volcanic plumes by using a ship radar

*Koji Sassa¹ (1.Natural Science Cluster, Kochi University)

Keywords:volcano plume, convective cell, ship radar

RHI scans using ship radar can capture detailed behavior in the vertical cross-section of convective clouds and volcanic plumes. The present study aims to investigate the flow structure of convective clouds and volcanic plumes. By tracking the pattern of radar reflectivity data obtained every three seconds by a ship radar installed at Sakurajima, we measured flow velocities in the vertical cross-section. The vortex motion of the Sakurajima wake was clearly observed in the volcanic plume.