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Characteristics on variation of meterological variables during the partial solar eclipse event of 21 May 2012 in Busan

2012년 5월 21일 부분일식 발생 시 부산지역 기상요소의 변화 특성

  • Jeon, Byung-Il (Department of Environmental Engineering, Silla University) ;
  • Kim, Il-Gon (Department of Geography, Silla University)
  • Received : 2013.02.06
  • Accepted : 2013.04.11
  • Published : 2013.07.31

Abstract

The purpose of this study was to analyze the effects of partial solar eclipse on 21 May 2012 in Korea on meteorological variables in Busan. 0800 LST(Local Standard Time) solar radiation was similar or lower than 0700 LST solar radiation, and sunshine duration decreased by 0.2~0.5 hours in Busan and great cities under the influence of the partial solar eclipse. Temperature drop due to the partial solar eclipse was $0.2{\sim}2.0^{\circ}C$, time taken to arrive at maximum temperature after onset of eclipse was 8~62 minutes, and time taken to arrive at minimum temperature after maximum eclipse was -9~17 minutes in Busan. Change of wind speed was negligible as partial solar eclipse occurred in the morning. Soil temperature of 5 cm was minute as well, the increase of soil temperature due to sunset was delayed by more than 1 hour.

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