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An Analysis and Numerical Simulation on Southwestern Prevailing Wind Phenomenon around Pohang in Winter  

Lee, Hwa-Woon (Department of Atmospheric Sciences, Pusan National University)
Kim, Hyun-Goo (Environment & Energy research center, Research Institute of Industrial Science & Technology)
Jung, Woo-Sik (Department of Atmospheric Sciences, Pusan National University)
Publication Information
Journal of the Korean earth science society / v.24, no.6, 2003 , pp. 533-548 More about this Journal
Abstract
The prevailing wind phenomenon around Pohang in winter was investigated by using surface and vertical observatory datas and a numerical simulation was carried out to analyse this phenomenon using RAMS. Direction of the prevailing wind was westerly at upper atmosphere. However, near the surface, southwestern wind prevailed in winter. Using the RAMS to simulate a winter wind system numerically, it was found out that this phenomenon was strongly affected by the geographical features such as directions of coastline and low level valley, and distributions of land and sea. To investigate the accuracy of the model results, wind speed, temperature and wind direction of typical continuous southwestern wind occurring days were compared with observation data. Analyzing the characteristics of local circulation system was very hard because of horizontally sparse observation data. But from the result above, a numerical simulation using the RAMS, which satisfies the spatial high resolution, will provide more accurate results.
Keywords
prevailing wind; geographical features; RAMS; wind field;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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