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    Dear colleagues interested in Volcanic Crater lakes !

    Welcome to the 8th International workshop on Volcanic lakes

    The Commission on Volcanic Lales (CVL8) is one of the sub-commissions of the International Association of Volcanology and Chemistry of the Earth's Interior (IAVCEI).

    I would like to invite you to join the 8th Workshop on Volcanic Lakes, which will be held in Japan from 24-31 July 2013. The former workshop (7th) was held at Costa Rica in 2010 hosted by the researchers in University of Costa Rica and National University. I sincerely thank their hard work and kindness to all of the participants. The 7th workshop was planned and carried out with the strong initiative of Dr. D Rouwet and he has been selected to be the new leader of Commission of Volcanic Lakes (CVL), the subcommittee of International Association of Volcanology and Chemistry of Earth Interior (IAVCEI). At the 7th workshop, the Japanese group proposed the 8th workshop at Aso volcano of Japan in 2013. Fortunately, the proposal was accepted by the majority of participants. The area around Japan has been called as far east. Really Japan is the remote place for the people in north and south American continents, Europe and Africa. One convenient factor for the 8th workshop is the subsequent holding just after the IAVCEI general assembly in Kagoshima Japan. You can join also IAVCEI general assembly prior to the workshop. A session on volcanic crater lake is planned in the assembly.

    The Aso volcano and the crater lake is the main target of this workshop. Aso volcano is the complex of many central cones and huge surrounding caldera rim. The Nakadake peak is one of the central cones, hosting a deep pit crater in which high temperature and hyper acidic lake water has been sustained. At the previous workshops, we have usually sampled lake water by ourselves for inter-laboratory comparison in terms of chemical and isotopic analysis. Due to the deepness and steepness on the inner wall of Nakadake crater, the direct sampling is not easy and dangerous. We need to limit our activities around the lake, and they would be visual observation and a safe remote sensing. The sampling is also our great pleasure. Then we can sample lake waters at Kirishima volcanic area although the concentration of magmatic component in the water is low. As the active volcanic lake water, we can touch and sample the water at Lake Oyunuma in Noboribetsu spa, Hokkaido island, where is the place of optional tour after the main body of workshop. Lake Oyunuma is very interesting because the water temperature of bottom water is higher than 100C and molten sulfur is kept at the bottom. Anyway, we can discuss and share the hot result of your research, inspired by the variety of features on crater lakes in Japan. I hope you should join the 8th workshop at Aso and Noboribetsu, and enjoy the nature in Japan and taste the various foods in Japan.