ESTIMATING ACCURACY OF WIND DATA OVER THE SETO INLAND SEA BASED ON SDP OVERLAND WIND DATA AND MESOSCALE METEOROLOGICAL MODEL MM5

Abstract

Accuracy of two kinds of wind data during 15 typhoons calculated at 9 sea stations of the Seto Inland Sea is estimated by comparing with wind data measured at those stations. One set of data is extracted from a 45-year wind data set for the concerned area which was made by Yamaguchi et al.(2009) using SDP overland wind data acquired by the Japan Meteorological Agency. The other is the wind data set made by Lee et al.(2009) applying a mesoscale meteorological model MM5. The degree of agreement between the time series of calculated and measured winds during a typhoon is evaluated by 7 error indices. Almost all mean values and standard deviations of the error indices suggest that the SDP data-based wind data shows a higher degree of accuracy than the MM5-based wind data.