Wind Speed Modeling for Malaysia

Abstract

The spatial wind modeling is essential and helpful during early stage of any wind energy project’s site selection. The aim of this study was to establish a wind map that described the spatial wind distribution in Malaysia. The objectives of the study were to interpolate spatial wind distribution in Malaysia and followed by to extrapolate the spatial wind distribution to its altitudes. Twelve selected Malaysian Meteorological Department (MMD) stations’ wind data were collected; from these, 9 were used for the spatial modeling and another 3 were used for the validation. Spatial wind data were interpolated by Ordinary Kriging. Then, the spatial wind modeling extrapolated the spatial wind data to its altitude which was 10 m height from the elevation by power law approach. Kriging interpolation showed that in Johor or southern parts of Peninsular Malaysia where prevailing wind was higher than other areas along the year. After extrapolation, the wind map showed the wind speed with its longitude, latitude, and altitude coordination. Addition, Kriging interpolation had been improved to present the spatial wind distribution in Malaysia by spatial modeling, extrapolation. Lastly, the accuracy of the Kriging interpolation and wind map were ±1.1143 and ±1.4949 m/s respectively.

Keywords

• Spatial modelling; Kriging Interpolation; Wind Resources; GIS; Malaysia

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