층화추출법에 의한 해양기상환경의 표본추출 타당성 연구

The infrared signature of a ship is largely influenced by the ocean environment of the operating area, which has been known tocause large changes in the signature. As a result, the weather condition has to be clearly set for an analysis of the infrared signatures. It isnecessary to analyze meteorological data for all the oceans where the ship is supposed to be operated. This is impossibly costly and time consumingbecause of the huge size of the data. Therefore, the creation of a standard environmental variable for an infrared signature research is necessary. Inthis study, we compared and analyzed sampling methods to represent ocean data close to the Korean peninsula. In order to perform this research,we collected ocean meteorological records from KMA (Korea Meteorological Administration), and sampled these in numerous ways considering fivevariables that are known to affect the infrared signature. Specifically, a simple random sampling method for all the data and 1-D, 2-D, and 3-Dstratified sampling methods were compared and analyzed by considering the mean square errors for each method.