Japan Geoscience Union Meeting 2018

Presentation information

[JJ] Evening Poster

M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS16] Dynamics of eruption cloud and cumulonimbus; modelling and remote sensing

Mon. May 21, 2018 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

convener:Eiichi Sato(Meteorological Research Institute), Fukashi Maeno(Earthquake Research Institute, University of Tokyo), Takeshi Maesaka(防災科学技術研究所)

[MIS16-P01] Volcanic ash plume height estimation by weather radar

*Eiichi Sato1, Keiichi Fukui1, Toshiki Shimbori1, Kensuke Ishii1, Tetsuo Tokumoto1 (1.Meteorological Research Institute)

Keywords:volcanic ash plume, weather radar

Although there were many eruption cases which were captured by weather radar (e.g. Sawada, 2003), few cases were sequentially captured in time (e.g. Harris et al., 1983; Arason et al., 2011; Shimbori et al., 2013). There are two main reasons. One is that scales of many eruption cases were not enough to be sequentially detected by weather radars. The other is that records of many eruption cases were not left because radar data weren't digitized in past. After the digitization of weather radars, eruption cases captured by weather radar have been gradually accumulated.

In this presentation, the overview of the method, problems to be solved, and future prospects will be discussed.


Harris, D. M., W. I. Rose, Jr., R. Roe, M. R. Thompson, 1981: Radar observations of ash eruptions, The 1980 Eruptions of Mount St. Helens, Washington, U. S. Geological Survey Professional Paper, 1250, 323-333.

Sawada, Y., 2003: Record of eruption cloud echoes measured with weather radars, Weather Service Bulletin, 70.4, 119-169 (in Japanese).

Arason, P., G. N. Petersen, H. Bjornsson, 2011: Observations of the altitude of the volcanic plume during the eruption of Eyjafjallajökull, April–May 2010. Earth Syst. Sci. Data, 3, 9–17, doi:10.5194/essd-3-9-2011.

Shimbori, T., T. Sakurai, M. Tahara, K. Fukui, 2013: Observation of Eruption Clouds with Weather Radars and Meteorological Satellites -A Case Study of the Eruptions at Shinmoedake Volcano in 2011-, Quarterly Journal of Seismology, 77, 139-214 (in Japanese).