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논문 기본 정보

자료유형
학술대회자료
저자정보
Xing YU (Ewha Womans University) Seon Ki PARK (Ewha Womans University) Yong-Hee LEE (Korea Meteorological Administration) Kwang-Deuk AHN (Korea Meteorological Administration) Sung-Ho CHOO (Korea Meteorological Administration)
저널정보
한국기상학회 한국기상학회 학술대회 논문집 The Fifth Korea-Japan-China Joint Conference on Meteorology
발행연도
2011.10
수록면
18 - 21 (4page)

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초록· 키워드

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As the numerical weather prediction (NWP) models became more accurate, model output statistics (MOS) follow that trend. The Korean Meteorological Adminstration (KMA) descided to import the Unified Model (UM) as a next-generation NWP system since 2007. The KLAPS (Korea Local Analysis and. Prediction System) with 5 km resolution is used as the observation to verify the 12 km UM forecast. Four surface variables are verified ? temperature, relative humidy, wind speed and wind direction. The MOS forecast are based on a meta-heuristic algorithm ? harmony search (HS) and 80 potential varibles derived from the UM forecasts.
The MOS process is as follows: 1) to intepolate the 12 km UM output to the corresponding KLAPS 5 km grids. 2) to derive 80 potential predictants. 3) to minimize the difference between the MOS forecasts and the KLAPS analysis fields. The coefficient tuning process is done by the HS method. The MOS is seperated for 4 seasons, and the traning period is 2007-2009. The UM was initilized twice a day (00 and 12 UTC), and 21 valid forecast times are from 6 to 66 hours. Therefore, there exist 2×21 equations for a given grid and predictor. Statistic scores show that MOS forecasts are superior to the UM forecasts for most grids.

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Abstract
1. Introduction
2. Data
3. Methodology
4. Results
5. References

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UCI(KEPA) : I410-ECN-0101-2013-453-000979419