Analysis of pressure waves observed in Sakurajima eruption movies
Abstract
Four eruption movies of Sakurajima volcano taken in the 1980s are analyzed. Pressure waves associated with these eruptions are identified by changes in luminance using a new image processing method. Results of the processing determined the apparent speeds of these waves at approximately 342–574 m/s. Further, spatial characteristics of the pressure waves are quantitatively investigated to estimate the source conditions of volcanic explosions.
- Publication:
-
Earth, Planets and Space
- Pub Date:
- March 2007
- DOI:
- 10.1186/BF03352691
- Bibcode:
- 2007EP&S...59..177Y
- Keywords:
-
- Sakurajima volcano;
- image processing;
- visualized pressure waves