한국기후변화학회지 (Journal of Climate Change Research)
- 제8권2호
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- Pages.109-123
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- 2017
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- 2093-5919(pISSN)
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- 2586-2782(eISSN)
DOI QR Code
강원 지역의 장기 겨울철 강수 및 강설 변화의 경향 분석
Long-term Changes in Wintertime Precipitation and Snowfall over Gangwon Province
- Baek, Hee-Jeong (Numerical Modeling Center, Korea Meteorological Administration) ;
- Ahn, Kwangdeuk (Numerical Modeling Center, Korea Meteorological Administration) ;
- Joo, Sangwon (Numerical Modeling Center, Korea Meteorological Administration) ;
- Kim, Yoonjae (Numerical Modeling Center, Korea Meteorological Administration)
- 투고 : 2016.07.07
- 심사 : 2017.06.01
- 발행 : 2017.06.30
초록
The effects of recent climate change on hydrological systems could affect the Winter Olympic Games (WOG) because the event is dependent on suitable snow and ice conditions to support elite-level competitions. We investigate the long-term variability and change in winter total precipitation (P), snowfall water equivalent (SFE), and ratios of SFE to P during the period 1973/74~2015/16 in Gangwon province. The climatological percentages of SFE relative to winter total precipitation were 71%, 28%, and 44% in Daegwallyeong, Chuncheon, and Gangneung, respectively. The winter total P, SFE, and SFE/P has decreased (but not significantly), although significant increases of winter maximum and minimum temperature were detected at a 95% confidence level. Notably, a significant negative trend of SFE/P at Daegwallyeong in February, the month of the WOG, was attributable to a larger decrease in SFE related to the increases in maximum and minimum temperature. Winter wet-day minimum temperatures were warmer than climatological minimum temperatures averaged over the study period. The 20-year return values of daily maximum P and SFE decreased in Yongdong area. Since the SFE/P decrease with increasing temperature, the probability of rainfall rather than snowfall can increase if global warming continues.
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