Journal of the korean society of oceanography

The Korean Society of Oceanography (한국해양학회)
권호 표지

Measuring and Modeling the Spectral Attenuation of Light in the Yellow Sea

  • Gallegos, Sonia-C. (Naval Research Laboratory, Oceanography Division) ;
  • Sandidge, Juanita (Naval Research Laboratory, Oceanography Division) ;
  • Chen, Xiaogang (Planning Systems Inc.) ;
  • Hahn, Sangbok-D. (West Fisheries Research and Development Institut) ;
  • Ahn, Yu-Hwan (Korean Ocean Research and Development Institute) ;
  • Iturriaga, Rodolfo (University of Southern California, Wrigley Institute for Environmental Science) ;
  • Jeong, Hee-Dong (National Fisheries Research and Development Institute) ;
  • Suh, Young-Sang (National Fisheries Research and Development Institute) ;
  • Cho, Sung-Hwam (West Fisheries Research and Development Institute)
  • Published : 2004.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

Spectral attenuation of light and upwelling radiance were measured in the western coast of Korea on board the R/V Inchon 888 of the Korean National Fisheries Research and Development Institute(NFRDI) during four seasons. The goal of these efforts was to determine the spatial and temporal distribution of the inherent and apparent optical properties of the water, and the factors that control their distribution. Our data indicate that while stratification of the water column, phytoplankton, and wind stress determined the vertical distribution of the optical parameters offshore, it was the tidal current and sediment type that controlled both the vertical and horizontal distribution in the coastal areas. These findings led to the development of a model that estimates the spectral attenuation of light with respect to depth and time for the Yellow Sea. The model integrates water leaving radiance from satellites, sediment types, current vectors, sigma-t, bathymetry, and in situ optical measurements in a learning algorithm capable of extracting optical properties with only knowledge of the environmental conditions of the Yellow Sea. The performance of the model decreases with increase in depth. The mean absolute percentage error (MAPE) of the model is 2% for the upper five meters, 8-10% between 6 and 50 meters, and 15% below 51 meters.

Keywords

References

  1. J. Korean Soc. Remote Sens. v.14 Specific absorption coefficients for the chlorophyll and suspended sediment in the Yellow and Mediterranean Seas Ahn,Y.H. https://doi.org/10.7780/kjrs.1998.14.4.353
  2. J. Korean Assoc. Hydrol. Sci. v.21 A fine grid two-dimensional M2 tidal model of the East China Sea Choi,B.H.
  3. J. Oceanol. Soc. Korea v.21 The ecological study of phytoplankton in Kyeonggi Bay, Yellow Sea. II Light intensity, transparency, suspended substances Choi,J.K.;J.H.Shim
  4. J. Ocean. Huanghai and Bohai Seas v.4 Study of the water color and transparency in the Bohai Fei,Z.
  5. J. Atmos. Ocean. Tech. v.19 The Modular Ocean Data Assimilation System(MODAS) Fox,D.N.;W.J.Teague;C.N.Barron;M.R.Carnes;C.M.Lee https://doi.org/10.1175/1520-0426(2002)019<0240:TMODAS>2.0.CO;2
  6. J. Phys. Ocean. v.19 Storm generated surface waves in the East China Sea and the Yellow Sea Grabber,H.R.C. Beardsley;D.Grant https://doi.org/10.1175/1520-0485(1989)019<1039:SGSWAS>2.0.CO;2
  7. Oceanology of the China Seas v.1 Some striking features of the circulation in Huanghai Sea and East China Sea Hu,D.X.
  8. J. Ocean. Soc. Korea v.3 no.2 The relationship between the water color and the transparency in the seas around Korea Hanh,S.D.
  9. Geophys. Res. Let. v.25 Coastal wave generation in the Bohai Bay and propagation along the Chinese coast Jacobs,G.A.;R.H.Preller;S.K.Redlinger;W.J.Teague https://doi.org/10.1029/97GL03636
  10. Oceanography of East and Asian marginal Seas Tidal computation of the East China Sea Kang,S.K.;S.R.Lee;D.D.Yum;A.Takano(ed.)
  11. Prog. Oceanog. v.17 Suspended matter regime in the Yellow Sea Milliman;J.D.F,Li;Y.Y.Shao;T.M.Zheng;R.Limeburner https://doi.org/10.1016/0079-6611(86)90045-5
  12. Rapid Environmental Assessment Determining the Coastal Environment by data assimilation using an Adjoint technique Pistek,P.;H.Perkins;J.Boyd;Pouliquen(ed.);Kirwan(ed.);Pearson(ed.)
  13. J. Geophys. Res. v.103 Current and tide observations in the southern Yellow Sea Teague,W.J.;H.T.Perkins;Z.R.Hallock;G.A.Jacobs https://doi.org/10.1029/98JC02672
  14. Marine Geol. v.83 Distribution of suspended sediment in the Korea Strait and southeastern Yellow Sea: Onset of winter monsoons Sells,J.T. https://doi.org/10.1016/0025-3227(88)90062-X
  15. Oceanol. Limnol. Sinica v.23 The light attenuation of the Euphotic zone in Qianliya waters in the middle of the Yellow Sea Yang,S.
  16. Mar. Sci. Bull. v.2 On the distribution characteristics of water transparency in the Each China Sea Zhang,X.
  17. Trans. Oceanol. Limnol. v.3 Distributions and variations and variations of the transparency in the Bohai Zhu,L.;B.Zhao