Atmosphere (대기)

Korean Meteorological Society (한국기상학회)
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Automation of Dobson Spectrophotometer(No.124) for Ozone Measurements

돕슨 분광광도계(No.124)의 오존 자동관측시스템화

  • Kim, Jhoon (Global Environment Laboratory/Department of Atmospheric Sciences, Yonsei University) ;
  • Park, Sang-Seo (Global Environment Laboratory/Department of Atmospheric Sciences, Yonsei University) ;
  • Moon, Kyung-Jung (National Institute of Environmental Research) ;
  • Koo, Ja-Ho (Global Environment Laboratory/Department of Atmospheric Sciences, Yonsei University) ;
  • Lee, Yun-Gon (Global Environment Laboratory/Department of Atmospheric Sciences, Yonsei University) ;
  • Miyagawa, Koji (Aerological Observatory, Japan Meteorlogical Agency) ;
  • Cho, Hi-Ku (Global Environment Laboratory/Department of Atmospheric Sciences, Yonsei University)
  • 김준 (연세대학교 지구환경연구소/대기과학과) ;
  • 박상서 (연세대학교 지구환경연구소/대기과학과) ;
  • 문경정 (국립환경과학원) ;
  • 구자호 (연세대학교 지구환경연구소/대기과학과) ;
  • 이윤곤 (연세대학교 지구환경연구소/대기과학과) ;
  • ;
  • 조희구 (연세대학교 지구환경연구소/대기과학과)
  • Received : 2007.08.04
  • Accepted : 2007.11.06
  • Published : 2007.12.31
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Abstract

Global Environment Laboratory at Yonsei University in Seoul ($37.57^{\circ}N$, $126.95^{\circ}E$) has carried out the ozone layer monitoring program in the framework of the Global Ozone Observing System of the World Meteorlogical Organization (WMO/GAW/GO3OS Station No. 252) since May of 1984. The daily measurements of total ozone and the vertical distribution of ozone amount have been made with the Dobson Spectrophotometer (No.124) on the roof of the Science Building on Yonsei campus. From 2004 through 2006, major parts of the manual operations are automated in measuring total ozone amount and vertical ozone profile through Umkehr method, and calibrating instrument by standard lamp tests with new hardware and software including step motor, rotary encoder, controller, and visual display. This system takes full advantage of Windows interface and information technology to realize adaptability to the latest Windows PC and flexible data processing system. This automatic system also utilizes card slot of desktop personal computer to control various types of boards in the driving unit for operating Dobson spectrophotometer and testing devices. Thus, by automating most of the manual work both in instrument operation and in data processing, subjective human errors and individual differences are eliminated. It is therefore found that the ozone data quality has been distinctly upgraded after automation of the Dobson instrument.

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