Wind Shear Coefficient at 23 Wind Monitoring Towers in Thailand

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Publication Details

Author list: Octaviani, M.;Manomaiphiboon, K.;Prabamroong, T.

Publication year: 2015

Journal: Journal of Sustainable Energy and Environment (1906-4918)

Volume number: 6

Issue number: 2

Start page: 61

End page: 66

ISSN: 1906-4918

Abstract

This study deals with characterization of near-surface wind shear coefficient or exponent using multiple-height wind data observed in the year 2006 at 23 towers located across Thailand. The characteristics of main interest are diurnal and seasonal variations and dependence on atmospheric stability and surface roughness. The key results obtained from the study are: At most towers, wind shear coefficient is relatively large during the night and becomes relatively small in the afternoon, which is typically found or reported in the literature. However, for some towers, the pattern is reverse, which may be partly attributed to complex wind fields influenced by local topography. A set of wind shear coefficient values aggregated from all tower data by type of terrain (open and non-open

Keywords

Wind shear, power law, surface roughness, atmospheric stability, meteorology, wind energy