DOI QR코드

DOI QR Code

공간기후모형을 이용한 나주지역 배 개화기 일 최저기온 예보

Forecasting of Daily Minimum Temperature during Pear Blooming Season in Naju Area using a Topoclimate-based Spatial Interpolation Model

  • 발행 : 2007.09.30

초록

2004년부터 2005년까지 복잡 지형에 위치한 나주 지역 배 과수원에 대하여 광역적 기후 지형 모형을 적용, 일 최저 기온의 공간분포를 정밀 추정함으로써 서리 경고 시스템의 정확성을 향상시키고자 하였다. 2004년 봄, 세 곳의 배 과수원에 대해 모형을 적용한 결과, 관측값과 일치함을 보여 주었고 예측력은 기상청 예측 결과보다 더 향상되었다. 실측과 모형에 의한 일 최저 기온의 차이는 골짜기에서 $-2.1{\sim}+2.7^{\circ}C$(평균 $-0.4^{\circ}C$), 강변에서 $-1.6{\sim}+2.7^{\circ}C$(평균 $-0.4^{\circ}C$), 구릉지에서 $-1.1{\sim}+3.5^{\circ}C$(평균 $0.6^{\circ}C$)였다. 냉기침강 효과가 크고 서리 내습 가능성이 높은 골짜기와 강변의 오차가 크게 줄어들었다.

To improve the accuracy of frost warning system for pear orchard in a complex terrain in Naju area, the daily minimum temperature forecasted by Korea Meteorological Administration (KMA) was interpolated using a regional climate model based on topoclimatic estimation and optimum scale interpolation from 2004 to 2005. Based on the validation experiments done for three pear orchards in the spring of 2004, the results showed a good agreement between the observed and predicted values, resulting in improved predictability compared to the forecast from Korea Meteorological Administration. The differences between the observed and the predicted temperatures were $-2.1{\sim}2.7^{\circ}C$ (on average $-0.4^{\circ}C$) in the valley, $-1.6{\sim}2.7^{\circ}C$ (on average $-0.4^{\circ}C$) in the riverside and $-1.1{\sim}3.5^{\circ}C$ (on average $0.6^{\circ}C$) in the hills. Notably, the errors have been reduced significantly for the valley and riverside areas that are more affected by the cold air drainage and more susceptible to frost damage than hills.

키워드

참고문헌

  1. Chung, U., H. C. Seo, and J. I. Yun., 2004: Site-specific frost warning based on topoclimatic estimation of daily minimum temperature. Korean Journal of Agricultural and Forest Meteorology 6(3), 164-169. (in Korean with English abstract)
  2. Chung, U., H. C. Seo, J. I. Yun, and K. H. Lee., 2003: An optimum scale topoclimatic interpolation of daily minimum temperature in complex terrain. Korean Journal of Agricultural and Forest Meteorology 5(4), 261-265. (in Korean with English abstract)
  3. Chung, U., H. H. Seo, K. H. Hwang, B. S. Hwang, and J. I. Yun., 2002: Minimum temperature mapping in complex terrain considering cold air drainage. Korean Journal of Agricultural and Forest Meteorology 4(3), 133-140. (in Korean with English abstract)
  4. Jang, H. I., H. H. Seo, and S. J. Park. 2002: Strategy for fruit cultivation research under changing climate. Korean Journal of Horticultural Science & Technology 20(3), 270-275. (in Korean)
  5. Yoon, S. T. 2005: Effect of global warming and coping with vulnerability of agricultural production. Korean Journal of International Agriculture 17(3), 199-207. (in Korean)
  6. Yun, J. I., Y. Choi, and J. H. Ahn., 2001: Seasonal trend of elevation effect on daily air temperature in korea. Korean Journal of Agricultural and Forest Meteorology 3(2), 96-104. (in Korean with English abstract)
  7. Yun, J. I., J. Y. Choi, Y. K. Yoon, and U. Chung. 2000: A Spatial interpolation model for daily minimum temperature over mountainous regions. Korean Journal of Agricultural and Forest Meteorology 2(4), 175-182. (in Korean with English abstract)

피인용 문헌

  1. A Quantification Method for the Cold Pool Effect on Nocturnal Temperature in a Closed Catchment vol.13, pp.4, 2011, https://doi.org/10.5532/KJAFM.2011.13.4.176
  2. Spatiotemporal variability of the latest frosts in Korean Peninsula and causes of atmospheric circulation vol.128, pp.5, 2016, https://doi.org/10.1007/s00703-016-0439-z