ラジオゾンデ放球による鈴鹿おろし多点同時観測の回想記

概要

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In the north and central parts of Mie Prefecture Japan, northwesterly extremely strong wind called as “Suzuka-oroshi” blows in winter. Suzuka-oroshi is said to be generated by the Suzuka Mountain range. For this reason, a big wind power plant “Aoyama-kogen Wind Farm” is located at the top of the Suzuka Mountain range. We took “simultaneous multiple-radiosonde observation” in order to measurehorizontal and vertical atmospheric structures from a windward side to a leeward side in the central part of Mie Prefecture in March 2010. The observation was conducted in a narrow area with about 35km horizontal distance between the windward and leeward observatories. The simultaneous multipleradiosonde observation is a new observational method in which we simultaneously launched balloons with GPS radiosondes at four observatories along the prevailing wind from the windward to leeward. This observation gives us horizontal and vertical atmospheric structures of Suzuka-oroshi. This short report gives a narrative of our observation.