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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The frequency of extreme wind speed was examined using data of daily maximum gust wind speed at synoptic stations in Japan from 1967 to 2007. Correction to temporal inhomogeneity arising from changes in sites, anemometer height and types, and land use of the surrounding area was attempted using surface geostrophic wind speed as reference. It is found that part of the stations, especially those in the inland area of western Japan, have a few cases of unusually high wind that deviates from the Gumbel distribution. At these stations, wind speed is reduced for some range of wind direction due to orographic barrier effects, so that extremely high wind tends to be observed only in limited occasions.
