Journal of the Korean Association of Geographic Information Studies (한국지리정보학회지)

The Korean Association of Geographic Information Studies (한국지리정보학회)
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Homogeneous Regions Classification and Regional Differentiation of Snowfall

적설의 동질지역 구분과 지역 차등화

  • KIM, Hyun-Uk (High Impact Weather Research Center(HIWRC), National Institute of Meteorological Sciences (NIMS), Korean Meteorological Administration (KMA)) ;
  • SHIM, Jae-Kwan (High Impact Weather Research Center(HIWRC), National Institute of Meteorological Sciences (NIMS), Korean Meteorological Administration (KMA)) ;
  • CHO, Byung-Choel (High Impact Weather Research Center(HIWRC), National Institute of Meteorological Sciences (NIMS), Korean Meteorological Administration (KMA))
  • 김현욱 (국립기상과학원 관측기반연구과 재해기상연구센터) ;
  • 심재관 (국립기상과학원 관측기반연구과 재해기상연구센터) ;
  • 최병철 (국립기상과학원 관측기반연구과 재해기상연구센터)
  • Received : 2017.05.26
  • Accepted : 2017.08.28
  • Published : 2017.09.30
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Abstract

Snowfall is an important natural hazard in Korea. In recent years, the socioeconomic importance of impact-based forecasts of meteorological phenomena have been highlighted. To further develop forecasts, we first need to analyze the climatic characteristics of each region. In this study, homogeneous regions for snowfall analysis were classified using a self-organizing map for impact-based forecast and warning services. Homogeneous regions of snowfall were analyzed into seven clusters and the characteristics of each group were investigated using snowfall, observation days, and maximum snowfall. Daegwallyeong, Gangneung-si, and Jeongeup-si were classified as areas with high snowfall and Gyeongsangdo was classified as an area with low snowfall. Comparison with previous studies showed that representative areas were well distinguished, but snowfall characteristics were found to be different. The results of this study are of relevance to future policy decisions that use impact-based forecasting in each region.

대설은 우리나라의 법적 자연재해 중 하나이다. 최근 기상현상에 의한 사회경제적 영향력을 함께 예보하는 영향예보가 부각되고 있으며, 이를 위해서는 먼저 각 지역의 기후적 특징을 분석할 필요가 있다. 본 연구에서는 영향예보의 기반마련을 위해 자기조직화지도를 활용하여 적설동질지역을 구분하여 지역별 적설 특징을 분석했다. 연구결과 적설동질지역은 7개 군집으로 나타났으며, 강설량 및 관측일수, 최대강설량을 이용하여 각 그룹의 특징을 구분했다. 대관령, 강릉시, 정읍시는 강설량이 많은 지역으로, 경상도는 강설량이 적은 지역으로 구분되었다. 선행연구와 비교결과 대표적인 지역이 잘 구분되었으나 강설의 특징은 차이가 있는 것으로 나타났다. 본 연구의 결과는 각 지역의 영향예보를 위한 정책결정에 기초자료로 활용될 수 있다.

Keywords

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