해색영상을 이용한 동중국해 북부해역 하계 클로로필 a의 시공간 분포

Kim, Sang-Woo;Lim, Jin-Wook;Jang, Lee-Hyun

  • 발행 : 2008.01.31


Temporal and spatial variabilities of chlorophyll a (Chl-a) in the northern East China Sea (ECS) are described, using both 8-day composite images of the SeaWiFS (Sea-viewing Wide Field-of-view Sensor) and in-situ data investigated in August and September during 2000-2005. Ocean color imagery showed that Chl-a concentrations on the continental shelf within the 50 m depth in the ECS were above 10 times higher than those of the Kuroshio area throughout the year. Higher concentrations (above $5mg/m^3$) of yearly mean Chl-a were observed along the western part of the shelf near the coast of China. The standard deviation also showed the characteristics of the spatial variability near $122-124^{\circ}E$, where the western region of the East China Sea was grater than that of the eastern region. Particularly the significant concentration of Chl-a, up to $9mg/m^3$, was found at the western part of $125^{\circ}E$ in the in-situ data of 2002. The higher Chl-a concentrations of in-situ data were consistent with low salinity waters of below 30 psu. It means that there were the close relationship between the horizontal distribution of Chl-a and low salinity water.


East China Sea;Ocean color image;Chlorophyll a


  1. Obata A., Ishizaka J., Endoh M., 1996, Global verification of critical depth theory for phytoplankton bloom with climatological in situ temperature and satellite ocean color data, J. Geophys. Res., 101, 20, 657- 667
  2. Kim S.W., Saitoh S., Ishizaka J., Isoda Y., Kishino M., 2000, Temporal and spatial variability of phytoplankton pigment concentrations in the Japan Sea derived from CZCS images, J. Oceanogr., 56, 527- 538
  3. Sverdrup H. U., 1953, On conditions for the vernal blooming of phytoplankton, J. Cons. Int. Explor. Mer., 18, 287-295
  4. Morel A., Prieur L., 1977, Analysis of variations in ocean color, Limnol. Oceanogr., 22, 709-722
  5. Kim S. W., Saitoh S., Kim D. S., 2002, Spatial distribution of pigment concentration around the East Korean Warm Current region derived from satellite data, J. Korean Fish. Soc. 35, 265-272
  6. Yoder J. A., McClain C. R., Feldman G. C., Esaias W.E., 1993, Annual cycles of phytoplankton chlorophyll concentrations in the global ocean: A satellite view, Global Biogeochem. Cycles, 7, 181-193
  7. NFRDI, 2007, Data of chlorophyll-a and total suspended matter in the East China Sea (2000-2005), 35pp
  8. Ning X., Liu Z., Cai Y., Fang M., Chai F., 1998, Physicobiological oceanographic remote sensing of the East China Sea: Satellite and in situ observations, J. Geophys. Res., 103(C10), 21623-21635
  9. Ichikawa H., Beardsely R. C., 2002, The current system in the Yellow and East China Seas, J. Oceanogr., 58, 77-92
  10. Guo Y. J., Zhang Y. S., 1996, Characteristics of phytoplankton distribution in Yellow Sea, The Yellow Sea, 2(1), 90-103
  11. Kim K., Kim K. R., Rhee T. S., Rho H. K., Limeburner R., Beardsley R. C., 1991, Identification of water masses in the Yellow Sea and the East China Sea by cluster analysis, 253-267. In Oceanography of Asian Marginal Seas, ed. by Takano K., Elsevior, Amsterdam
  12. Su Y. S., Weng X. C., 1994, Water masses in China Seas. 3-16, In Oceanology of China Seas, Volume I, ed. by Zhou et al., Kluwer Academic Publishers
  13. Lie H. J., 1984, A note on water masses and general circulation in the Yellow Sea (Hwanghae), J. Oceanol. Soc. Korea, 19, 187-194
  14. Yoon Y. H, Park J. S., Park Y. G., Soh H. Y., Hwang D. J., 2005, A characteristics of thermohaline structure and phytoplankton community from southwestern parts of the East China Sea during early summer, Bull. Korea Soc. Fish., 41, 129-139
  15. Hur H. B., Jacobs G. A., Teague W. J., 1999, Monthly variations of water masses in the Yellow and East China Seas, J. Oceanogr., 55, 171-184
  16. Kiyomoto Y., Iseki K., Okamura K., 2001, Ocean color satellite imagery and shipboard measurements of chlorophyll a and suspended particulate matter distribution in the East China Sea, J. Oceanogr, 57, 37-45
  17. Wang B., Wang X., 2006, Impact of the exceptionally high flood from Changjiang river on the aquatic chemical distributions on the Huanghai Sea and East China Sea shelves in the summer of 1998, Acta Oceanologica Sinica, 25, 43-52
  18. Ahn Y. H., Shanmugam P., 2004, New methods for correcting the atmospheric effects in Landsat imagery over turbid waters, Korean J. Remote Sensing, 20, 289-305
  19. Ishizaka J., Fukushima H., Kishino M., Saino T., Takahashi M., 1992, Phytoplankton pigment distributions in regional upwelling around the Izu Peninsula detected by coastal zone color scanner on May 1982, J. Oceanogr., 48, 305-327
  20. Eslinger D. L., O'Brien J. J., Iverson R. L., 1989, Empirical orthogonal function analysis of cloud-containing coastal zone color scanner images of northeastern North American coastal waters, J. Geophys. Res., 94, 10884-10890
  21. Banse K., English D. C., 1994, Seasonality of coastal zone color scanner phytoplankton pigment in the offshore oceans, J. Geophys. Res., 99, 7323-7345
  22. Beardsley R.C., Cannon, G.A., Yu, H., Limeburner, R., 1985, Discharge of the Changjing (Yangtze river) into the East China Sea, Continental Shelf Research, 4, 57-76
  23. Gong G. C., Wen Y. H., Wang B. W., Liu G. J., 2003, Seasonal variation of chlorophyll a concentration, primary production and environmental conditions in the subtropical East China Sea, Deep-See Research II, 50, 1219-1236
  24. Oh H. J, Kang Y. S., Park J. H., 1999, Distributional characteristics of chlorophyll a and oceanographic conditions in the northern part of East China Sea, J. Korea Fish. Soc., 32(1), 88-97
  25. Tang D. L., Ni I. H., Muller-Karger F.E., Liu, J. J., 1998, Analysis of annual and spatial patterns of CZCS-derived pigment concentration on the continental shelf of China. Cont. Shelf Res., 18, 1493-1515