Volcanic Cloud Research Group, Kagoshima Univ. and Kumamoto Univ.
High concentration events of SO2 at the surface in and around Sakurajima Volcano are compared with the flow of ash clouds recorded by multi-point observation, concentrating on the following days in 2009-2012:
2009.1.31 : Arimura very high, SPM also
2009.9.18 : Toward SW, Arimura -> Akamizu etc.
2009.9.19 : Weak wind, Akamizu, SW, Taniyama
2009.11.3 : Arimura -> Many points W-SW, CityHall-Taniyama
2009.12.14 : Arimura extremely high <-> Kanoya
2009.12.18-19 : Arimura very high, Kanoya
2010.2.6 : Arimura <-> many others S-W
2010.2.19 : Arimura very high, Kanoya, HigashiKushira
2012.2.2 : Kanoya, HigashiKushira in the morning
2012.2.20 : Fine, mild wind to SE -> E -> N
2012.9.26 : Akamizu, Taniyama
3012.9.27 : Akamizu, Taniyama
2012.10.12 : Fine, weak wind, Vissibility 10-15 km
2012.10.29 : 9 -> 2 m/s, Arimura -> Akamizu, CityHall -Kiire
These are background materials of the talk :
Mechanism of high concentration events of sulfur dioxide at the
surface around Sakurajima Volcanoippt-pdfj
by Kisei KINOSHITACMasaya SAKAMOTO, Chikara KANAGAKI and Naoko IINO
IAVCEI 2013 Scientific Assembly, Kagoshima, July 20-24, 2013,
Session: 4B.Environmental and ecosystem impacts of persistent volcanic
degassing and recent eruptions
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Volcanic clouds at Sakurajima in the 21th century