Co-host: The Institute of Electrical Engineering of Japan, Japanese Society of Steel Construction, Japan Society of Civil Engineers, Meteorlological Society of Japan, Architectural Institute of Japan, Japan Association for Wind Engineering
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Bangladesh and Myanmar were seriously dfamaged by the severe Cyclone "Sidr" in November of 2007 and "Nargis" in May of 2008. These cyclones are severest ones in the last two decades years. The total died and missed pesons were more than four thousands in Bangladesh, and more than ahundred thousands in myanmar. In the cyclone "Sidr", the minimum pressure of 944 hPa and the peak gust of 69m/s were observed at the time of landing on the coast Bangladesh. In this paper, we reprt the statistic summary of cyclones in the northern Indian Ocean with the Arabian Sea and the Bay of Bengal. The year to year variation fo the cyclone generation and the seasonal feature of the occurrence are clarified.