Spatial Information Research

Korea Spatial Information Society (대한공간정보학회)
권호 표지
DOI QR코드

DOI QR Code

Spatial and Temporal Analysis of Thunderstorm Wind Gust

뇌우 동반 돌풍의 시공간분포 분석

  • Received : 2013.05.06
  • Accepted : 2013.07.12
  • Published : 2013.08.31
Download PDF
⟨ Previous Next ⟩

Abstract

This study presents the analysis of temporal and spatial distribution of occurrences of wind gust over Korea from 2002 to 2009. The events during typhoons are excluded and the topographical effects on the wind speed are also corrected using KBC (2005). As the results, the frequency of the occurrences is as high as 286 and the higher occurrences appear mainly along the coastal area. This study also shows that the uncertainty of the appearance of wind gust during thunderstorm is much higher than in synoptic wind by comparing wind speed records for both events. This study also found that the spatial distribution of cumulative cloud quotient is closely correlated to that of occurrences of thunderstorm wind gust, which suggests the possible utilization of the cloud quotient as weighting factors in assessing wind gust risk.

본 연구는 2002년부터 2009년까지 국내에서 발생한 돌풍에 대한 시계열 및 공간분포를 분석하였다. 태풍 기간 동안에 발생한 돌풍에 대해서는 제외하였으며, 지형에 의한 풍속 할증 효과는 KBC 2005 기준을 적용하여 보정하였다. 분석 결과, 돌풍 발생 빈도는 해안지역을 따라 높은 빈도가 나타났으며, 대상 기간 중 최대 286회의 발생 빈도를 보였다. 본 연구에서는 뇌우에 의한 돌풍과 종관 기상에 의해 발생한 돌풍의 시계열 분포의 비교를 통해 뇌우에 의한 돌풍의 불확실성이 높음을 확인하였다. 또한 누적운량과 뇌우 돌풍의 공간적 상관분석을 통해 두 인자간 높은 상관관계가 있음을 근거로 하여 돌풍에 대한 공간적 위험도를 평가하는데 활용할 수 있음을 제시하였다.

Keywords

References

  1. Architectural Institute of Korea, 2005, Korea Building Code.
  2. Ashley, W.S; Mace, L.B; Stallins, J. 2012, Urban-induced Thunderstorm Modification in the Southeast United States, Climatic Change, 113:481-498. https://doi.org/10.1007/s10584-011-0324-1
  3. Choi, E.C.C. 2000, Wind Characteristics of Tropical Thunderstorm, Journal of Wind Engineering and Industrial Aerodynamics, 84(2):215-226. https://doi.org/10.1016/S0167-6105(99)00054-9
  4. Choi, E.C.C; Hidayat, F.A. 2002, Gust Factors for Thunderstorm and Non-Thunderstorm Winds, International Journal of Wind Engineering and Industrial Aerodynamics, 90: 215-226.
  5. Cho, E.H. 2009, A Study on the Gust with Thunderstorm in Honam Area, Journal of the Chosun National Science, 2(2):101-130.
  6. Eom, H.S; Suh, M.S. 2009, Statistical Characteristics of Recent Lightning Occurred over South Korea, Journal of Korean Earth Science Society, 30(2):210-222. https://doi.org/10.5467/JKESS.2009.30.2.210
  7. Eom, H.S; Suh, M.S. 2010, Analysis of Stability Index for Lightning by Using Upper Air Observation Data over South Korea, Atmoshere Meteorological Society, 20(4):467-482.
  8. Heo, B.H; Kim, K.E.; Min, K.D., 1994, Synoptic Thermodynamic Characteristics of Air Thunderstorms Occurring in the Middle Region of South Korea during the Summer, Journal of the Korean Society of Tobacco Science, 30(1): 49-63.
  9. Kuleshov Y; de Hoedt G; Wright W; Brewster A. 2002, Thunderstorm distribution and frequency in Australia, Australian Meteorological Magazine, 51:145-154.
  10. Lee, S; Chang, E.M. 2009, Application of GIS to Typhoon Risk Assessment, The Jounal of GIS Association of Korea, 17(2):243-249.
  11. Seong, M.H; Park, K.S; Choi, S.H. 2010, Estimation of Topographic Factor of Wind Speed Using Geographic Information, Journal of Korea Spatial Information Society, 18(3):13-22.
  12. Smith B.T; Winters, A.C; Mead, C.M; Dean, A.R; Castellanos, T.E. 2010, Measured severe wind gust climatology of thunderstorms for the contiguous United States, 25th Conf, Severe Local Storms.
  13. Xu, K.M; Randall, D.A. 1999, Updraft and Downdraft Statistics of Simulated Tropical and Midlatitude Cumulus Convection, Ninth ARM Science Team Meeting Proceedings, 22-26.
  14. Yohana, N.M; Lee, S; Lee, Y.K; Kim, H.S. 2009, Topographic Factors for Wind Speed In Undulating Terrain: A Case Study for Korean Peninsula, Journal of Wind Engineering Institute Korea, 13(2):67-73.