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http://dx.doi.org/10.7319/kogsis.2012.20.3.019

Temporal and Spatial Wind Information Production and Correction Algorithm Development by Land Cover Type over the Republic of Korea  

Kim, Do Yong (부경대학교 BK21 지구환경시스템사업단)
Han, Kyung Soo (부경대학교 환경해양대학 공간정보시스템공학과)
Publication Information
Journal of Korean Society for Geospatial Information Science / v.20, no.3, 2012 , pp. 19-27 More about this Journal
Abstract
Wind is an important variable for various scientific communities such as meteorology, climatology, and renewable energy. In this study, numerical simulations using WRF mesoscale model were performed to produce temporal and spatial wind information over the Republic of Korea during 2006. Although the spatial features and monthly variations of the near-surface wind speed were well simulated in the model, the simulated results overestimated the observed values as a whole. To correct these simulated wind speeds, a regression-based statistical algorithm with different constants and coefficients by land cover type was developed using the satellite-derived LST and NDWI. The corrected wind speeds for the algorithm validation showed strong correlation and close agreement with the observed values for each land cover type, with nearly zero mean bias and less than 0.4 m/s RMSE. Therefore, the proposed algorithm using remotely sensed surface observations may be useful for correcting simulated near-surface wind speeds and producing more accurate wind information over the Republic of Korea.
Keywords
Wind; Numerical Simulation; Land Cover Type; LST; NDWI; Correction Algorithm;
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Times Cited By KSCI : 9  (Citation Analysis)
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