Browse > Article

The Observed Change in Interannual Variations of January Minimum Temperature between 1951-1980 and 1971-2000 in South Korea  

Jung J. E. (경희대학교 생태시스템공학과)
Chung U. (경희대학교 생태시스템공학과)
Yun J. I. (경희대학교 생태시스템공학과)
Choi D. K. (전라북도농업기술원)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.6, no.4, 2004 , pp. 235-241 More about this Journal
Abstract
There is a growing concern about the possible increase in inter-annual variation of minimum temperature during the winter season in Korea. This view is strengthened by frequently reported freezing injury to dormant fruit trees, while warmer winters have prevailed recently. The January minimum temperature record at fourteen weather stations was analyzed for 1951-2000. The results showed no evidence of increasing standard deviation at 3 locations between 1951-1980 and 1971-2000, while the remaining 11 stations showed a trend of decreasing standard deviation for the two periods. An empirical model explaining the spatial variation of the standard deviation was derived by regression analysis of 56 stations' data for 1971-2000. Daily minimum temperature and the site elevation may account for 68% of the observed variations. We applied this model to restore the average standard deviation of the January minimum temperature for 1971-2000, and the result was used to produce gridded minimum temperature data for the recurrence interval of 10 and 30 years at 250m resolution. A digital form of the plant hardiness zone map may be developed from this product for site-specific selection of adapted plant species.
Keywords
Global warming; Warm winter; Inter-annual variation; Fruit dormancy;
Citations & Related Records
연도 인용수 순위
  • Reference
1 원예연구소, 2003: 복숭아 동해위험지대 구분. 원예시험연구 사업연보(2002) 31pp
2 Choi, J., U. Chung, and J. I. Yun, 2003: Urban effect correction to improve accuracy of spatially interpolated temperature estimates in Korea. Journal of Applied Meteorology 42(12), 1711-1719
3 Shim, K. M., J. T. Lee, S. H. Yun, and K. H. Hwang, 2000: Analysis of meteorological variation during winter barley cropping season in Korea. Korean Journal of Agricultural and Forest Meteorology 2(3), 95-102. (In Korean with English abstract)
4 Faust, M., 1989: Resistance of fruit trees to cold. In Physiology of Temperate Zone Fruit Trees. John Wiley and Sons, p307-331
5 기상청, 1999: 기상관서 관측상수 정밀측정 연구. 211pp
6 Howell, G. S., and C. J. Weiser, 1970: Fluctuations in the cold resistance of apple twigs during spring dehardening. Journal of American Society of Horticultural Science 95,190-192