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http://dx.doi.org/10.7319/kogsis.2012.20.4.029

The Study on the Mapping of Wind Resource using Moving Filter Technique at Udo, Jeju Island  

Moon, Seo Jeong (Multidsciplinary Graduate School for Wind Energy, Jeju National University)
Ko, Jung Woo (Multidsciplinary Graduate School for Wind Energy, Jeju National University)
Lee, Byung Gul (Civil Engineering, Jeju National University)
Publication Information
Journal of Korean Society for Geospatial Information Science / v.20, no.4, 2012 , pp. 29-36 More about this Journal
Abstract
In order to create a wind resource map, we need wind data, contour map and roughness map. Moving Filter technique was applied to Udo of Jeju Island to improve the accuracy and efficiency of creating roughness map based on the Land Cover Map of the Ministry of Environment. The Land Cover Map was simplified using moving filtering, and the roughness map was created with this Land Cover Map. The wind resource map was created using this roughness map. Finally, we verified the validity and application of moving filter technique for wind resource map. As a result, the wind map which was created using the roughness map with moving filtering showed bias values which were all negative. It means the wind map is underestimated to values of wind energy and RMSE values were also from 0.0237m/s to 0.0253m/s at 50m height. In other words, estimation of wind resource using image filtering provides reliable results at 80m height typically when the wind turbine is installed. Finally, we found that image filtering technique is very useful tool to make wind resource map.
Keywords
Wind Resource Map; Roughness Map; Moving Filter; Land Cover Map;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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