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현장입도분석기를 이용한 섬진강하구 부유퇴적물의 특성 연구

In situ Particle Size and Volume Concentration of Suspended Sediment in Seomjin River Estuary, Determined by an Optical Instrument,'LISST-100'

  • 김석윤 (부경대학교 해양학과 및 해양과학공동연구소) ;
  • 이병관 (부경대학교 해양학과 및 해양과학공동연구소)
  • KIM Seok Yun (Department of Oceanography, Pukyong National University and Korea inter- University Institute) ;
  • LEE Byoung Kwan (Department of Oceanography, Pukyong National University and Korea inter- University Institute)
  • 발행 : 2004.08.01

초록

In situ particle size and volume concentration of suspended sediment was measured at the mouth of Seomjin River Estuary In February 2001, using an optical instrument, 'LISST-100'. Time variation of in situ particle size and concentration shows: (1) during ebb tide, Seomjin River supplies relatively fine-grained particles with less-fluctuated, compared to during flood tide, and well-behaved concentrations following the tidal cycle; and (2) during flood tide, relatively coarse-grained particles with highly variable in size distribution and concentration flow upstream from Kwangyang Bay. This explains a poor correlation $(r^{2}=0.10)$ between sediment concentration and beam attenuation coefficient during flood and a high degree of correlation $(r^{2}=0.80)$ during ebb tide. Relatively fine grained and well defined, monotonous size distribution may promote the correlation between concentration and beam attenuation coefficient due to optical homogeneity of particles during ebb tide. Abundance of large aggregates with time-varying size and shape distributions may be mainly responsible for variations in optical properties of the sediment during flood tide, and thus may confound the relationship between the two variables. The difference in particle sizes and shapes between flood and ebb tides can also be observed on SEM images.

키워드

참고문헌

  1. Agrawal, Y.C and H.C. Pottsmith. 2000. Instruments for particle size and settling velocity observations in sedi-ment transport. Mar. Geol., 168, 89-114 https://doi.org/10.1016/S0025-3227(00)00044-X
  2. Allen, G.P. 1991. Sedimentary processes and facies in the Gironde estuary: a recent model for macrotidal estuarine systems. Can. Soc. Petrol. Geol. Mem., 16, 29-40
  3. Baker, E.T. and J.W. Lavelle. 1984. The effect of particle size on the light attenuation coefficient of natural suspension. J. Geophys. Res., 89, 8197-8203 https://doi.org/10.1029/JC089iC05p08197
  4. Campbell, D.E. and R.W. Spinrad. 1987. The relationship between light attenuation and particle characteristics in a turbid estuary. Estuar. Coast. Shelf Sci., 25, 53- 65 https://doi.org/10.1016/0272-7714(87)90025-4
  5. Edwards. A.C., L.R. Hoz and A.M. Gomez. 1993. Sus- pended sediments in the southeastern Gulf of Mexico. Mar. Geol., 112, 257-256 https://doi.org/10.1016/0025-3227(93)90172-R
  6. Gardner, W.D., P.E. Biscaye, J.R.V. Zaneveld and M.J. Richardson. 1985. Calibration and comparison of the LDGO nephelometer and the OSU transmissometer on the Nova Scotian Rise. Mar. Geol., 66, 323-344 https://doi.org/10.1016/0025-3227(85)90037-4
  7. Kim, D.C. and H.J. Kang. 1991. Suspended sediment budget in Gwangyang Bay through the Yeosu Sound. Bull. Kor. Fish. Soc., 24, 31-38
  8. Kim, S.J., D.C. Kim, H.I. Yi and I.C. Shin. 1996. Changes in sedimentary process and distribution of benthic foraminifera in the eastern part of Kwangyang Bay, South Sea of Korea. J. Oceanol. Soc. Kor., 1, 32-45. (in Korean)
  9. Kim, S.Y. 1994. Use of beam transmissometer as indirect measure of suspended sediment concentration on the estuarine environment: Application and problems. Bull. Kor. Fish. Soc., 27, 771-781
  10. Kim, S.Y. 1990. Physical processes and fine-grained sediment dynamics in the Neuse River Estuary, North Carolina. Ph.D. Thesis. University of North Carolina, Chapel Hill, North Carolina, U.S., pp. 128
  11. Kim, S.Y. 1984. Concentration and transport of suspended particulate matter in the Seomjin Estuary and Kwang- yang Bay. M.S. Thesis, Seoul National University, Korea, pp. 39. (in Korean)
  12. Lee, C.B. and T.I. Kim. 1987. Formation and evolution of turbidity maximum in the Keum estuary, west coast of Korea. J. Oceanol. Soc. Kor., 22, 105-118
  13. Lee, Y.G., J.Y. Hwang, K.K. Jung and J.M. Choi. 1996. Sedimentary environment change in Kwangyang Bay and Yosu Sound - Based on sediment characteristics and clay mineral. J. Kor. Earth Sci. Soc., 17, 407-416. (in Korean)
  14. McCave, I.N. 1983. Particulate size spectra, behavior, and orgin of nepheloid layers over the Nova Scotian continental rise. J. Geophys. Res., 88, 7647-7666 https://doi.org/10.1029/JC088iC12p07647
  15. Meade, R.H. 1972. Transport and deposition of sediments in estuaries. Geol. Soc. Am. Mem., 133, 131-141 https://doi.org/10.1130/MEM133-p131
  16. Mikkelsen, O.A. and M. Pejrup. 2000. In situ particle (floc) size spectra and density of particle aggregates in a dredging plume. Mar. Geol., 170, 443-459 https://doi.org/10.1016/S0025-3227(00)00105-5
  17. Milliman, J.D., H.T. Shen, Z.S. Yang and R.H. Meades. 1985. Transport and deposition of river sediment in the Changjiang estuary and adjacent continental shelf. Cont. Shelf Res., 4, 37-45 https://doi.org/10.1016/0278-4343(85)90020-2
  18. Moody, J.A., B. Butman and M.H. Bothner. 1987. Near- bottom suspended matter concentration on the con- tinental shelf during storms: estimates based on in situ observations of light transmission and a particle size dependent transmissometer calibration. Cont. Shelf Res., 7, 609-628 https://doi.org/10.1016/0278-4343(87)90026-4
  19. Nichols, M.M., G.H. Johnson and P.C. Peebles. 1991. Modern sediments and facies model for a microtidal coastal plain estuary, the James Estuary, Virginia. J. Sed. Petrol., 61, 883-899
  20. Oh, I.S., T.K. Na and C.B. Lee. 1995. Tidal current and suspended sediment transport in the Keum Estuary, west coast of Korea. J. Oceanol. Soc. Kor., 30, 147-162. (in Korean)
  21. Pak, H. and J.R.V. Zaneveld. 1977. Botttom nepheloid layers and bottom mixed layers observed on the continental shelf off Oregon. J. Geophys. Res., 82, 3921-3931 https://doi.org/10.1029/JC082i027p03921
  22. Park, Y.A., C.B. Lee and J.H. Choi. 1984. Sedimentary environments of the Gwangyang Bay, southern coast of Korea. J. Oceanol. Soc. Kor., 19, 82-88. (in Korean)
  23. Ryu, S.O., J.Y. Kim., H.J. Lee, Y.G. Cho and S.M. Ahn. 2003. Seasonal changes of tidal-flat sediments; Kwangyang Bay, South Coast of Korea. J. Oceanol. Soc. Kor., 8, 349-356. (in Korean)
  24. Ryu. S.O. 2003. Spatial and temporal variation of grain size of the surface sediments in Kwangyang Bay, South Coast of Korea. J. Oceanol. Soc. Kor., 8, 340-348. (in Korean)
  25. SEQUOIA Scientific Inc. 2000. Manual of LISST-100 Particle Size Analyzer, pp. 66
  26. Spinrad, R.W. 1986. A calibration diagram of specific beam attenuation. J. Geophys. Res., 91, 7761-7764 https://doi.org/10.1029/JC091iC06p07761
  27. Wells, J.T. and S.Y. Kim. 1991. The relationship between beam transmission and concentration of suspended particulate material in the Neuse River Estuary, North Carolina. Estuaries, 14, 395-403 https://doi.org/10.2307/1352264

피인용 문헌

  1. Factors Controlling Temporal-Spatial Variations of Marine Environment in the Seomjin River Estuary Through 25-hour Continuous Monitoring vol.15, pp.4, 2012, https://doi.org/10.7846/JKOSMEE.2012.15.4.314
  2. LISST-100과 ADCP를 이용한 광양만 현장 부유입자물질 특성 연구 vol.18, pp.11, 2004, https://doi.org/10.5322/jes.2009.18.11.1299