Journal of the Korean earth science society (한국지구과학회지)

The Korean Earth Science Society (한국지구과학회)
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Characteristics Analysis of the Winter Precipitation by the Installation Environment for the Weighing Precipitation Gauge in Gochang

고창 지점의 강수량계 설치 환경에 따른 겨울철 강수량 관측 특성 분석

  • Kim, Byeong Taek (Operational Systems Development Department, National Institute Meteorological Sciences) ;
  • Hwang, Sung Eun (Operational Systems Development Department, National Institute Meteorological Sciences) ;
  • Lee, Young Tae (Operational Systems Development Department, National Institute Meteorological Sciences) ;
  • Shin, Seung Sook (Operational Systems Development Department, National Institute Meteorological Sciences) ;
  • Kim, and Ki Hoon (Operational Systems Development Department, National Institute Meteorological Sciences)
  • 김병택 (국립기상과학원 현업운영개발부) ;
  • 황성은 (국립기상과학원 현업운영개발부) ;
  • 이영태 (국립기상과학원 현업운영개발부) ;
  • 신승숙 (국립기상과학원 현업운영개발부) ;
  • 김기훈 (국립기상과학원 현업운영개발부)
  • Received : 2021.09.08
  • Accepted : 2021.10.20
  • Published : 2021.10.31
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Abstract

Using the precipitation data observed at the Gochang Standard Weather Observatory (GSWO) during the winter seasons from 2014 to 2016, we analyzed the precipitation characteristics of the winter observation environment. For this study, we used four different types of precipitation gauges, i.e., No Shield (NS), Single Alter (SA), Double Fence Intercomparison Reference (DFIR), and Pit Gauge (PG). We analyzed the data from each to find differences in the accumulated precipitation, characteristics of the precipitation type, and the catch efficiency according to the wind speed based on the DFIR. We then classified these into three precipitation types, i.e., rain, mixed precipitation, and snow, according to temperature data from Gochang's Automated Synoptic Observing System (ASOS). We considered the DFIR to be the standard precipitation gauge for our analysis and the cumulative winter precipitation recorded by each other gauge compared to the DFIR data in the following order (from the most to least similar): SA, NS, and PG. As such, we find that the SA gauge is the most accurate when compared to the standard precipitation gauge used (DFIR), and the PG system is inappropriate for winter observations.

고창 표준기상관측소(Gochang Standard Weather Observatory, GSWO)에서 3년간(2014-2016년) 관측한 겨울철 강수량 자료를 사용하여 겨울철 관측환경에 따른 강수량 관측 특성을 분석하였다. 이를 위해, 설치환경이 다른 강수량계 4종인 NS(No Shield), SA(Single Alter), DFIR(Double Fence Intercomparison Reference), PG(Pit Gauge)를 사용하여, DFIR을 기준으로 누적 강수량 차이, 강수 유형별 특성, 풍속 변화에 따른 수집효율을 분석하였다. 강수 유형은 고창 종관기상관측장비(Automated Synoptic Observing System, ASOS)의 기온 관측 자료를 사용하여 강우, 혼합 강수, 강설로 분류하여 분석하였다. 겨울철 누적 강수량은 SA, NS, PG 순으로 DFIR과 유사하게 나타났으며, 통계 분석 결과에서는 SA가 DFIR과 가장 유사한 결과를 보였다. 결과적으로, 겨울철 강수량 관측에서는 SA가 기준 강수량계와 가장 유사하게 관측되었으며, PG는 겨울철 관측에 적합하지 않은 것으로 분석된다.

Keywords

Acknowledgement

이 연구는 기상청 국립기상과학원 「표준기상관측 및 활용연구」 (KMA2018-00221)의 지원으로 수행되었습니다.

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