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http://dx.doi.org/10.5322/JES.2006.15.5.417

Improvement in the Simulation of Wind Fields Over the Complex Coastal Area, Korea  

Kim, Yoo-Keun (Department of Atmospheric Sciences, Pusan National University)
Bae, Joo-Hyun (Department of Atmospheric Sciences, Pusan National University)
Jeong, Ju-Hee (Department of Atmospheric Sciences, Pusan National University)
Kweon, Ji-Hye (Department of Atmospheric Sciences, Pusan National University)
Seo, Jang-Won (Marine Meteorology & Earthquake Research Laboratory, Meteorological Research Institute)
Kim, Yong-Sang (Information Management Division, Korea Meteorological Administration)
Publication Information
Journal of Environmental Science International / v.15, no.5, 2006 , pp. 417-430 More about this Journal
Abstract
We focused on improvement in simulation of wind fields for the complex coastal area. Local Analysis and Prediction System(LAPS) was used as a data assimilation method to improve initial conditions. Case studies of different LAPS inputs were performed to compare improvement of wind fields. Five cases have been employed : I) non data assimilation, II) all available data, III) AWS, buoy, QuikSCAT, IV) AWS, buoy, wind profiler, V) AWS, buoy, AMEDAS. Data assimilation can supplement insufficiency of the mesoscale model which does not represent detailed terrain effect and small scale atmospheric flow fields. Result assimilated all available data showed a good agreement to the observations rather than other cases and estimated veil the local meteorological characteristics including sea breeze and up-slope winds. Result using wind profiler data was the next best thing. This implies that data assimilation with many high-resolution sounding data could contribute to the improvements of good initial condition in the complex coastal area. As a result, these indicated that effective data assimilation process and application of the selective LAPS inputs played an important role in simulating wind fields accurately in a complex area.
Keywords
Complex coastal area; Improvement; Wind fields; LAPS; Data assimilation;
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