Journal of Korea Water Resources Association (한국수자원학회논문집)

Korea Water Resources Association (한국수자원학회)
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An Analysis of Temporal Characteristic Change for Various Hydrologic Weather Parameters (II ) - On the Variability, Periodicity -

각종 수문기상인자의 경년별 특성변화 분석 (II) - 변동성, 주기성을 중심으로 -

  • Lee, Jae-Joon (School. of Civil and Environmental Engrg., Kumoh National Institute of Technoligy) ;
  • Jang, Joo-Young (School. of Civil Engrg., Kumoh National Institute of Technology) ;
  • Kwak, Chang-Jae (School. of Civil Engrg., Kumoh National Institute of Technology)
  • 이재준 (금오공과대학교 토목환경공학부) ;
  • 장주영 (금오공과대학교 대학원 토목공학과) ;
  • 곽창재 (금오공과대학교 대학원 토목공학과)
  • Received : 2009.12.21
  • Accepted : 2010.04.07
  • Published : 2010.05.31
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Abstract

In this study, for the purpose of analyzing variability and periodicity of Korean hydrologic weather parameters, 5 hydrologic weather parameters data such as annual precipitation, annual rainy days, annual average temperature, annual average relative humidity, annual duration of sunshine are collected from 63 domestic meteorological stations that has the hydrologic weather parameters records more than 30 years. And in this study the variability and periodicity using the statistical methods like Wald-Wolfowitz test, Mann-Whitney test, and Wavelet Transform about hydrologic weather parameters is analyzed. The results of statistical analysis of variability and periodicity can be summarized as follows: 1) Variability commonly appeared in annual average temperature and annual average relative humidity. 2) Annual precipitation, annual rainy days and annual duration of sunshine showed different results according to area. 3) Periodicity appeared in annual precipitation and annual rainy days but did not appeard in annual average temperature, annual average relative humidity and annual duration of sunshine.

본 연구에서는 국내 기상관측소 중 관측년수가 30년 이상인 관측소 63개 지점에 대한 5개의 수문기상수문인자 즉, 연강수량, 연강수일수, 연평균기온, 연평균상대습도, 연일조시간 자료를 각 지점별로 수집하고, 통계학적 기법인 Wald-Wolfowitz 검정, Mann-Whitney 검정을 이용하여 변동성 분석과 Wavelet Transform을 이용하여 주기성을 분석하였다. 변동성 분석결과 연평균상대습도, 연평균기온에서 공통적으로 변동성이 나타났으며, 연강수량, 연강수일수, 연일조시간은 지역에 따라 상이한 결과를 보였다. 주기성 분석에서는 연강수량, 연강수일수에서 각 지점별로 주기가 나타났으나, 연평균기온, 연평균상대습도, 연일조시간에서는 뚜렷한 주기가 나타나지 않았다.

Keywords

References

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