한국지구과학회지 (Journal of the Korean earth science society)

  • 제33권6호
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  • Pages.554-566
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  • 2012
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  • 1225-6692(pISSN)
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  • 2287-4518(eISSN)
한국지구과학회 (The Korean Earth Science Society)
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전지구 수온 및 염분 자료 품질 관리에 관한 논의

A Review of the Quality Control of Global Ocean Temperature and Salinity Data

  • 장유순 (미국 해양 대기청 지구유체역학 연구소, 프린스턴 대학교 포레스털 캠퍼스)
  • Chang, You-Soon (Geophysical Fluid Dynamics Laboratory of National Oceanic Atmospheric Administration, Princeton University Forrestal Campus)
  • 투고 : 2012.09.25
  • 심사 : 2012.10.13
  • 발행 : 2012.10.31
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초록

성공적인 국제 Argo 사업을 통해 얻어진 고해상도의 수온 및 염분 프로파일들을 이용하여 준실시간으로 3차원 전지구 해양 상태의 재현이 가능해졌으며, 전지구 해양 자료 분석 연구에 대한 관심 또한 크게 증가하였다. 본 연구에서는 XBT와 Argo 자료의 계통 오차, 열염분 해수면 높이 및 인공위성 관측 자료와의 해수면 수지 불일치, 해양 열용량 변동 및 객관 분석장 개발 현황 등 최근의 자료 분석 연구의 주요 쟁점들에 관해 정리하였다. 특히 동아시아 해역에서의 지역 규모 해양 기후 변화 분석에 앞서 매우 신중한 해양 자료의 품질 관리 및 전구 규모의 해양 변동에 관한 이해가 필요하다는 것을 강조하였다.

High-density temperature and salinity profiles from the successful international Argo project made it possible to reproduce the three-dimensional global ocean state in near-real time, which also increased much attention on the data analysis studies of global ocean. This paper reviewed several important issues on the recent data analysis studies such as systematic biases of XBT (eXpendable BathyThermograph) and Argo data, sea level budget discrepancy between steric height and satellite observed data, heat content change, and the current status of the development of objective analysis fields. This study also emphasized that it is required to carry out very cautious ocean data quality control and understand global-scale ocean variability prior to analyzing the regional-scale ocean climate change, particularly, in the East Asian marginal Seas.

키워드

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