DOI QR코드

DOI QR Code

Detection of low Salinity Water in the Northern East China Sea During Summer using Ocean Color Remote Sensing

  • Suh, Young-Sang (Marine Remote Sensing Laboratory, National Fisheries Research and Development Institute) ;
  • Jang, Lee-Hyun (Marine Remote Sensing Laboratory, National Fisheries Research and Development Institute) ;
  • Lee, Na-Kyung (Marine Remote Sensing Laboratory, National Fisheries Research and Development Institute)
  • Published : 2004.06.01

Abstract

In the summer of 1998-2001, a huge flood occurred in the Yangtze River in the eastern China. Low salinity water less than 28 psu from the river was detected around the southwestern part of the Jeju Island, which is located in the southern part of the Korean Peninsula. We studied how to detect low salinity water from the Yangtze River, that cause a terrible damage to the Korean fisheries. We established a relationships between low salinity at surface, turbid water from the Yangtze River and digital ocean color remotely sensed data of SeaWiFS sensor in the northern East China Sea, in the summer of 1998, 1999, 2000 and 2001. The salinity charts of the northern East China Sea were created by regeneration of the satellite ocean color data using the empirical formula from the relationships between in situ low salinity, in situ measured turbid water with transparency and SeaWiFS ocean color data (normalized water leaving radiance of 490 nm/555 nm).

Keywords

References

  1. Bowers, D. G., Harker, G. E. L., Smith, P. S. D., and Tett, P., 2000. Optical properties of a region of freshwater influence (The Clyde Sea). Estuarine, Coastal And Shelf Science, 50(5):717-726 https://doi.org/10.1006/ecss.1999.0600
  2. Cai D.,X. Shi,W.Zhou, andW. Liu,2001. Sources and transportation of total suspended matter and sediment in the southern Yellow Sea, Proceedings of 2nd China-Korea symposium on sedimentary dynamics and palaeoenvironmental changes int he Yellow Sea, pp.9-20
  3. Carder, K. L., F. R. Chen, Z. P. Lee, and S. K. Hawes,1999. Semi-analytical moderate-resolution imaging spectrometer algorithm for chlorophyll a and absorption with bio-optical domains based itrate-depletion temperatures, Journal of Geophysical Research, 104: 5403-5421
  4. Chikuni, S., 1985. The fish resources of the northwest Pacific, FAO Fisheries Technical Paper, 266: 67
  5. Cox, J. D., 2000. Ten worst world weather disasters of the 20th century, Weather for dummies. IDG Books, pp. 313-318.
  6. Hoguance, A. M., 1997. Shrimp abundance and river runoff in Sofala Bank The rule of Zambezi.Paper presented in the workshop on sustainable use of the Cahora Bassa Dam, Songo,Mozambique, 29 September-2 October 1997
  7. H¢Jjerslev, N. K., N. Holt, and T. Aarup, 1996. Optical measurement in the North Sea Baltic Sea transition zone. I. On the origin of the deep water in the Kattegat, Continental Shelf Research, 16:1329-1342
  8. Lee, N. K., Y. S. Suh, and Y. S. Kim, 2003. Satellite remote sensing to monitor seasonal horizontal distribution of resuspended sediments in the East China Sea, J. Korean Associ. Geographic Information. Studies, 6(3):161-161. (in korean)
  9. Monahan, E. C. and Pybus, M. J., 1978. Colour, UV absorbance and salinity of the surface waters off the West coast of Ireland. Nature, 274: 782-784 https://doi.org/10.1038/274782a0
  10. Steen, J. E. and A. M. Hoguane, 1990. Oceanographic results on expedition carried out by R/V Dr.Fridjof Nansen in Mozambique waters during April-May 1990, Relatorio, No.13, 35 p