고해상도 기온 및 강수 분포도 작성을 위한 공동크리깅 적용성 평가
Evaluation for Applicability of Cokriging for High Resolution Spatial Mapping of Temperature and Rainfall
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조회
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다운로드
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참고문헌
키워드
초록
Recently, it has been required to construct the meteorological data with more detailed resolution for analyzing regional meteorological characteristics. In this study, the applicability of cokriging method combined with the elevation data in high resoultion spatial mapping of temperature and rainfall based on sparse weather station observations was evaluated. 428 of observation data acquired in January, April, August and October, 2007 and digital elevation model(DEM) with 1km resolution were used for those mapping, and the results of cokriging were compared to that of inverse distance weighting (IDW) method. As the analysis of bias and root mean square error (RMSE) for the results of both methods using 107 of observation data, the results of cokriging were smaller than the results of IDW. This showed the cokriging is more effective method for the construction of high resolution meteorological data which well reflect topographic effects.
Abstract
Recently, it has been required to construct the meteorological data with more detailed resolution for analyzing regional meteorological characteristics. In this study, the applicability of cokriging method combined with the elevation data in high resoultion spatial mapping of temperature and rainfall based on sparse weather station observations was evaluated. 428 of observation data acquired in January, April, August and October, 2007 and digital elevation model(DEM) with 1km resolution were used for those mapping, and the results of cokriging were compared to that of inverse distance weighting (IDW) method. As the analysis of bias and root mean square error (RMSE) for the results of both methods using 107 of observation data, the results of cokriging were smaller than the results of IDW. This showed the cokriging is more effective method for the construction of high resolution meteorological data which well reflect topographic effects.
참고문헌 (12)
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