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Korean Meteorological Society (한국기상학회)
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Analysis of Weather Records in Admiral Yi Sun-sin's Nanjung Ilgi

이순신장군의 난중일기에 기록된 기상자료의 분석

  • Suh, Myoung-Seok (Department of Atmospheric Science, Kongju National University) ;
  • Cha, So-Yeong (Department of Atmospheric Science, Kongju National University)
  • 서명석 (공주대학교 대기과학과) ;
  • 차소영 (공주대학교 대기과학과)
  • Received : 2021.08.11
  • Accepted : 2021.11.26
  • Published : 2021.12.31
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Abstract

In this paper, the weather records in 'Nanjung Ilgi' were investigated and the weather characteristics of the southern coast of Korea (SC_Korea) was discussed. The Nanjung Ilgi is a personal diary written by admiral Yi Sun-sin from January 1592 to November 1598 during the 7-year war caused by the Japanese invasion. He is a respected great leader in the history of world naval warfare, winning all 23 battles against the Japanese. Of the 1593 days of diaries currently preserved, only 42 days have no weather records. Weather was recorded in detail, including sky conditions, precipitation, wind characteristics and others. Weather records were extracted from the diary, converted to the solar calendar, and compared with the meteorological data of Yeosu. The average annual precipitation day is about 90 days, which is similar to the current 95~100 days. As in the current climate, precipitation frequently occurs for about 30 days in summer, but less than 15 days in other seasons, and the rainy season starts from June 14 to 21 and ends from July 6 to 17. It seems that the abnormal cold and heat phenomena, which deviate significantly from the seasonal average climate, occurred on 6 and 21 days, respectively, over 7 years. This means that the weather records of Nanjung Ilgi can be used as valuable data on the climate of SC_Korea in the late 16th century. The fact that he recorded the weather even in such extreme battle conditions shows that he clearly recognized the importance of weather in warfare.

Keywords

Acknowledgement

1595년 음 3월 26일(약력 5월 5일)에는 "밤 10시경에 동쪽이 어둡다가 즉시 밝아지니 무슨 상서로운 징조인지 모르겠다"라는 기록에 대해 원인을 추정할 수 있도록 유성우 사건을 알려주신 공주대 김희수 교수에게 감사드립니다. 본 논문의 개선을 위해 소중한 시간을 할애하여 좋은 의견을 제시해 주신 두 분의 심사위원께 무한한 감사를 표합니다. 이 연구는 기후변화 대응 및 정보 생산·활용 연구(KMI2020-01410)의 지원으로 수행되었습니다.

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