Development of advanced observation systems for GLOBEC

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It is necessary to establish technological fundamentals of biological sampling and observation in the ocean for promoting GLOBEC project in Japan and in the world. Woods Hole Oceanographic Institution (WHOI) has the most advanced biological observation system of ocean ecosystem. Thus, the joint study to develop new observation systems was started as a cooperative research between Ocean Research Institute (ORI) and WHOI.ORI made oceanographic observation in the Izu Region, Kuroshio Extension, Kuroshio-Oyashio Transition Region by using present instruments and proto-type instruments in June 1996. Dr.S.Gallager of WHOI was invited to Japan in Nov. 1996. Then, the work shop on "Sampling and observation of zooplankton" was held. Drs. T.Komatsu and S.Kimura visited WHOI in USA to discuss on sampling, observation and automated analysis of zooplankton by acoustic or image analysis.ORI conducted two observation cruises for this study in the Kuroshio Extension and Kuroshio-Oyashio Transition Region in June and in Warm Core Ring off Sanriku in Oct. 1997. WHOI made observations in Georges Bank in the Atlantic equivalent to waters off Sanriku in Japan. Drs.T.Sugimoto, H.Nakata and I.Aoki visited USA to discuss results of observations by ORI in Japan and those by WHOI in USA.ORI conducted oceanographic observation using various instruments in July 1998 and in the Kuroshio Extension, Oyashio-Kuroshio Transition Region and Warm Core Ring off Sanriku from Sep. to Oct. 1998. WHOI made the same observation in Georges Bank as in 1997. Drs.T.Sugimoto and T.Komatsu visited USA to discuss the observation results and future cooperation in Aug.1998 and in Mar.1999, respectively. This study will continue through the future WHOI and ORI cooperative biological observations for GLOBEC scheduled in Japan Sea in 1999-2000.