Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
권호 표지
DOI QR코드

DOI QR Code

Morphological and sedimentological changes of subaqueous dunes in the tide-dominated environment, Gyeonggi Bay

조석우세환경인 경기만에 발달된 수중사구의 형태·퇴적학적 변화

  • Kum, Byung-Cheol (Maritime Security Research Center, Korea Institute of Ocean Science & Technology)
  • Received : 2013.10.30
  • Accepted : 2014.05.20
  • Published : 2014.07.31
Download PDF
⟨ Previous Next ⟩

Abstract

In september 2004 and 2006, topographical and sedimentological survey were carried out using multibeam echosounder, which were to investigate shape characteristics, temporal changes and control factors of the subaqueous dunes in the southern Gyeonggi Bay. The present tidal current and sedimentary characteristics of study area make conditions that the sizes (length and height) of large subaqueous dunes are developed and maintained sufficiently. The change of sedimentary characteristics over time, the decrease in grain size causes reduction in the height of very large subaqueous dunes. Therefore it shows that the grain size of surface sediments is a primary control factor in defining subaqueous dune sizes in the study area.

경기만 남부 지역에 발달되어 있는 수중사구의 형태 특성 및 변화를 알아보고 수중사구의 발달 제어요인을 파악하기 위해서 2004년 9월과 2006년 9월에 고해상도 다중빔음향측심기를 이용한 지형조사와 퇴적학적 조사를 실시하였다. 연구지역은 현재의 조류세기와 퇴적물 특성이 대형 수중사구가 충분히 발달, 유지될 수 있는 조건을 나타내고 있다. 시간에 따른 퇴적물 특성 변화, 즉, 입도의 감소는 초대형 수중사구의 파고를 감소시키고 있어, 입도가 연구지역 내 수중사구 크기 발달에 영향을 미치는 주요 요인임을 나타낸다.

Keywords

References

  1. J. R. L. Allen, "Simple models for the shape and symmetry of tidal sand waves: (1) Statically stable equilibrium forms". Marine Geology, vol. 48, pp. 31-49, 1982. https://doi.org/10.1016/0025-3227(82)90128-1
  2. B. W. Flemming, "The role of grain size, water depth and flow velocity as scaling factors controlling the size of subaqueous dunes", Proceedings of an International Workshop, no. 55-60, p. 55-60, 2000.
  3. J. Bartholdy, A. Bartholomae, and B. W. Flemming, "Grain-size control of large compound flow-transverse bedforms in a tidal inlet of the Danish Wadden Sea". Marine Geology, vol. 188, pp. 391-413, 2002. https://doi.org/10.1016/S0025-3227(02)00419-X
  4. V. B. Ernstsen, R. Noormets, C. Winter, and D. Hebbeln, "Development of subaqueous barchanoid-shaped dunes due to lateral grain size variability in a tidal inlet channel of the Danish Wadden Sea", Journal of Geophysical Research, vol. 110, pp. F04S08, 2005.
  5. V. B. Ernstsen, R. Noormets, D. Hebbeln, A. Bartholoma, and B. W. Flemming, "Precision of high-resolution multibeam echo sounding coupled with high-accuracy positioning in a shallow water coastal environment", Geo-Marine Letters, vol. 26, pp. 141-149, 2006. https://doi.org/10.1007/s00367-006-0025-3
  6. K. J. J. Van Landeghem, J. H. Baas, N. C. Mitchell, D. Wilcockson, and A. J. Wheeler, "Reversed sediment wave migration in the Irish Sea, NW Europe: A reappraisal of the validity of geometry-based predictive modelling and assumptions", Marine Geology, vol. 295-298, pp. 95-112, 2012. https://doi.org/10.1016/j.margeo.2011.12.004
  7. B. C. Kum, D. H. Shin, S. K. Jung, Y. K. Lee, and J. K. Oh, "Morphological charateristics and control factors of bedforms in southern Gyeonggi Bay, Yellow Sea", The Journal of the Korea Earth Science Society, vol. 31, no. 6, pp. 608-624, 2010 (in Korean). https://doi.org/10.5467/JKESS.2010.31.6.608
  8. B. C. Kum, D. H. Shin, S. K. Jung, S. Jang, N. D. Jang, and J. K. Oh, "Morphological features of bedforms and their changes due to marine sand mining in southern Gyeonggi Bay", Ocean and Polar Research, vol. 32, no. 4, pp. 337-350, 2010 (in Korean). https://doi.org/10.4217/OPR.2010.32.4.337
  9. G. P. Duffy and J. E. Hughes-Clarke, "Application of spatial cross correlation to detection of migration of submarine sand dune", Journal of Geophysical Research, vol. 110, pp. F04S12, 2005.
  10. H. J. Lee and S. H. Yoon, "Development of stratigraphy and sediment distribution in the northeastern Yellow Sea during Holocene sea-level rise", Journal of Sedimentary Research, vol. 67, no. 2, pp. 341-349, 1997.
  11. H. K. Bang, C. W. Won, and J. K. Oh, "Origin and charateristics of sand ridges in the western continental shelf of Korea Peninsula", The Journal of the Korea Society of Oceanography, vol. 29, no. 3, pp. 217-227, 1994 (in Korea).
  12. Y. S. Chu, Sediment Dynamics and Maintenance Processes of Linear Tidal Sand Body; Jangan Sandbank in the Central West Coast of Korea, Ph.D. Dissertations, Department of Oceanogrphy, Seoul National University, Korea, 2000.
  13. T. S. Chang, S. P. Kim, D. G. Yoo, S. J. Lee, and E. I. Lee, "A large mid-channel sand bar in the macrotidal seaway of Asan Bay, Korea; 30 years of morphologic response to anthropogenic impacts", Geo-Mar Lett, vol. 30, pp. 15-22, 2010. https://doi.org/10.1007/s00367-009-0146-6
  14. M. J. Park, "Tidal charateristics change in the Asan Bay due to the Hwaong (Namyang Bay) Tidal Barrier", The Journal of the Korea Society of Oceanography, vol. 13, no. 4, pp. 320-324, 2008 (in Korean).
  15. T. H. Kim, H. J. Oh, and Y. H. Youn, “Comparison on local wind waves in Gyeonggi Bay”, Journal of the Korean Meteorological Society, vol. 40, no. 4, pp. 485-495, 2004 (in Korean).
  16. IHO, IHO Standards for Hydrographic Surveys, 4th edn. International Hydrographic Organization, Monaco, Special Publish no. 44, pp. 1-23, 1998.
  17. D. E. Wells and D. Monahan, "IHO S44 standards for hydrographic surveys and the variety of requirements for bathymetric data", Journal of the Hydrographic, vol. 104, pp. 9-16, 2002.
  18. W. Heaps, "Standards for the calibration of multibeam echosounders, are new standards required?" Journal of the Hydrographic, vol. 111, pp. 26-27, 2004.
  19. G. M. Ashley, "Classification of large-scale subaqueous bedforms: a new look at an old problem", Journal of Sedimentary Petrology, vol. 60, no. 1, pp. 160-172, 1990. https://doi.org/10.2110/jsr.60.160
  20. R. L. Folk, Petrology of the Sedimentary Rocks, New York, American: Hemphill, 1968.
  21. B. W. Flemming, "Zur Kassifikation Subaquatischer, Stromungstransversaler Transportkorper". Bochumer Geologische Geotechnische Arbeiten, vol. 29, pp. 44-47, 1988, (in Germany).
  22. Y. S. Kubo, W. Soh, H. Machiyama, and H. Tokuyama, "Bedforms produced by the Kuroshio Current passing over the northern Izu Ridge", Geo-Marine Letters, vol. 24, pp. 1-7, 2004. https://doi.org/10.1007/s00367-003-0134-1
  23. K. J. J. Van Landeghem, A. J. Wheeler, N. Mitchell, and G. Sutton, "Variations in sediment wave dimensions across the tidally dominated Irish Sea, NW Europe", Marine Geology, vol. 263, pp. 108-119, 2009. https://doi.org/10.1016/j.margeo.2009.04.003
  24. R. G. Jackson, "Large scale ripples of the lower Wabash River", Sedimentology, vol. 23, pp. 593-623, 1976. https://doi.org/10.1111/j.1365-3091.1976.tb00097.x
  25. P. McLaren, "An interpretation of trends in grain-size measurements", Journal of Sedimentary Petrology, vol. 51, pp. 611-624, 1981.
  26. S. Gao and M. Collins, "Net sediment transport patterns inferred from grain-size trends, based upon definition of transport vectors", Sedimentary Geology, vol. 80, pp. 47-60, 1992.
  27. I. N. McCave, "Sand waves in the North Sea off the coast of Holland", Marine Geology, vol. 10, no. 3, pp. 199-225, 1971. https://doi.org/10.1016/0025-3227(71)90063-6

Cited by

  1. 다중빔음향측심 자료를 이용한 침몰선박 정밀영상 분석 연구 vol.22, pp.7, 2014, https://doi.org/10.7837/kosomes.2016.22.7.863