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EOF analysis is performed to find characteristics of Korea monsoon using 61 surface observation stations. This study reveals that the continental-scale Northeast Asia monsoon and the peninsula scale Korea Monsoon are dominant over the Korean peninsula. For the northeast asia monsoon, appeared as the...

EOF analysis is performed to find characteristics of Korea monsoon using 61 surface observation stations. This study reveals that the continental-scale Northeast Asia monsoon and the peninsula scale Korea Monsoon are dominant over the Korean peninsula. For the northeast asia monsoon, appeared as the most gravest modes in association with the analysis, cold signal over whole Korea peninsula is related with northerly and southerly winds making Korea cold in winter and warm in summer, respectively. Such pattern is related with the continental-scale monsoon circulation such as Siberian High and North Pacific High circulations due to large-scale ocean-atmosphere specific heat difference. In this study, authors found that the peninsula-scale monsoon pattern are also exist which can be explained with the relationship between temperature and eastwest flow over Korean Peninsula as the second gravest mode of patterns. For example, in association with the mode, when the center of Korea become cool/warm, there is divergent/convergent zonal flows from the center/coast to the coast/center of Korea peninsula. The major mode of Korea precipitation is defined as the annual cycle, which describes concentrated precipitation during summer period.

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