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수심측량자료를 사용한 해양수치모델 전용 수심 데이터 제작: BADA Ver.1

Development of Bathymetric Data for Ocean Numerical Model Using Sea-Floor Topography Data: BADA Ver.1

  • 투고 : 2019.04.29
  • 심사 : 2019.06.24
  • 발행 : 2019.06.30

초록

최근 해양예보/재해 등의 주요 분야에서 해양수치모델의 수행 및 연구결과에 대한 활용도가 증가함에 따라 정확도 높은 수심자료의 중요성이 크게 부각되고 있다. 해양수치모델에 주로 활용되는 국내 수심자료는 Choi et al.(2002), Seo(2008)의 자료가 있지만, 제작년도가 오래되고 해도를 기반으로 작성했다는 제한사항이 있다. 해도는 항해를 목적으로 제작되어 수심 측량자료 중 최천소 자료를 사용하므로 실제 해저지형을 재현하는데 한계가 있다. 국립해양조사원은 매년 지속적인 수심측량을 통하여 해도를 생산하고 있지만, 수치모델을 목적으로 한 수심자료는 생산하지 않았다. 본 연구에서는 원시 수심측량자료를 이용하여 수치모델을 위한 해양수치모델 전용 수심 데이터셋(BADA Ver.1)을 구축하고, 공개된 해양 수심자료와 비교하였다.

Recently, the importance of highly accurate bathymetric data is greatly emphasized by the increased use of the ocean numerical models and research results in major areas such as ocean forecasting and natural disaster. There are domestic bathymetric data mainly used in ocean numerical models of Choi et al.(2002) and Seo (2008), but the production year is old and the data was created on the basis of nautical charts. Nautical charts are made for the purpose of navigation and based on the minimum depth from bathymetric data, so there is a limitation to reproduce the actual submarine topography. Korea Hydrographic and Oceanographic Agency (KHOA) produces nautical charts every year through continuous bathymetric survey, but no bathymetric data for numerical models have been produced. In this study, using the raw bathymetric survey data, we built an exclusive bathymetric dataset (BADA Ver.1) for ocean numerical models and compared it with published bathymetric data.

키워드

참고문헌

  1. Blumberg, A.F. and Mellor, G.L. (1987). A description of a three-dimensional coastal ocean circulation model. In Three-dimensional Coastal Ocean Model, N.S. Heaps, Ed., Coastal. Estuar. Sci., 4, 1-6. https://doi.org/10.1029/CO004p0001
  2. Blumberg, A.F. (1994). A primer for Ecom-si. Technical Report of HydroQual, Inc., 66 p.
  3. Chen, C., Liu, H. and Beardsley, R.C. (2003). An unstructured, finite-volume, three-dimensional, primitive equation ocean model: application to coastal ocean and estuaries. J. Atm. and Oceanic Tech., 20, 159-186. https://doi.org/10.1175/1520-0426(2003)020<0159:AUGFVT>2.0.CO;2
  4. Chen, C., Beardsley, R.C. and Cowles, G. (2004). An unstructured grid, finite-volume coastal ocean model: FVCOM User Manual. SMAST/UMASSD Technical Report-04-0601, 183 p.
  5. Choi, B.H., Kim, K.O. and Eum, H.M. (2002). Digital Bathymetric Topographic Data for Neighboring Seas of Korea. Journal of Korean Society of Coastal and Ocean Engineers, 14(1), 41-50 (in Korean).
  6. DTED (2004). Level 1 Data, http://edcusgs.gov/products/elevation/srtmdted.html/.
  7. ESRI, https://www.esri.com/.
  8. FME, https://www.safe.com/.
  9. GEBCO, https://www.gebco.net/.
  10. Haidvogel, D.B., Arango, H.G., Hedstrom, K., Beckmann, A., Rizzoli, P.M. and Schepetkin, A.F. (2000). Model evaluation experiments in the North Atlantic Basin, Simulation in nonlinear terrain-following coordinates. Dyn. Atmo.Oceans., 32, 239-281. https://doi.org/10.1016/S0377-0265(00)00049-X
  11. Hamrick, J.M. (1996). User's Manual for the Environmental Fluid Dynamics Computer Code. Special Reports in Applied Marine Science and Ocean Engineering (SRAMSOE) No. 331, Virginia Institute of Marine Science, College of William and Mary, Virginia 23062, USA.
  12. Kantha, L.H. (1995). Barotropic tides in the global oceans from a nonlinear tidal model assimilating altimetric tide 1. model description and results. Journal of Geophysical Research, 100(C12), 25283-25308. https://doi.org/10.1029/95JC02578
  13. Korea Hydrographic and Oceanographic Agency (2012). Establishment of a submarine topography management system for natural science for marine forecasting (in Korean).
  14. Lee, H.J., Seo, H.J. and Kang, H.W. (2007). A Sensitivity Test on the Minimum Depth of the Tide Model in the Northeast Asian Marginal Seas. Journal of Korean Society of Coastal and Ocean Engineers, 19(5), 457-466 (in Korean).
  15. Lefevre, F., Frovost, C.L. and Lyard, F.H. (2000). How can we improve a global ocean tidal model at a regional scale? A test on the Yellow Sea and the East China Sea. Journal of Geophysical Research, 105(C4), 8707-8725. https://doi.org/10.1029/1999JC900281
  16. NOAA, https://www.noaa.gov/.
  17. Fowler, R.J. and Little, J.J. (1979). Automatic extraction of Irregular Network digital terrain models. Comput. Graph., 13(2), 199-207. https://doi.org/10.1145/965103.807444
  18. Seo, S.N. (2008). Digital 30sec Gridded Bathymetric Data of Korean Marginal Seas - KorBathy30s. Journal of Korean Society of Coastal and Ocean Engineers, 20(1), 110-120 (in Korean).
  19. U.S. Geological Survey (2002). GTOPO30 Documentation.