|
|||||
|
|
Distribution of Changjiang Diluted Water detected by satellite chlorophyll-a and its interannual variation during 1998–2007 |
|
| Authors: | Hyun-Cheol Kim Hisashi Yamaguchi Sinjae Yoo Jianrong Zhu Kazumaro Okamura Yoko Kiyomoto Katsuhisa Tanaka Sang-Woo Kim Taewook Park Im Sang Oh Joji Ishizaka |
| Institution: | 1. Korea Polar Research Institute, Korea Ocean Research and Development Institute, Songdo Techno Park, Songdo, Yeonsu, Incheon, 406-840, Korea 2. Institute for East China Sea Research, Nagasaki University, Nagasaki, 851-2213, Japan 3. Graduate School of Science and Technology, Nagasaki University, Nagasaki, 852-8521, Japan 4. Korea Ocean Research and Development Institute, Ansan, 425-600, Korea 5. State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, 200062, China 6. Seikai National Fisheries Research Institute, Nagasaki, 851-2213, Japan 7. National Fisheries Research and Development Institute, Busan, Korea 8. School of Earth and Environmental Sciences, Seoul National University, Seoul, 151-742, Korea 9. Faculty of Fisheries, Nagasaki University, Nagasaki, 852-8521, Japan |
| Abstract: | Sea-viewing Wide Field-of-view Sensor (SeaWiFS) chlorophyll-a distribution in summer in the East China Sea during 1998–2007 was analyzed. Statistical analysis with K-means clustering technique allowed us to define the proper satellite chlorophyll-a concentration indicating the Changjiang Diluted Water (CDW). The spatial distributions of the higher satellite chlorophyll-a concentrations (>0.48 mg m−3) corresponded well with the distributions of lower salinity CDW (<30–32) every year. Interannual variation of the CDW area, indicated by the high satellite chlorophyll-a, correlated with the interannual variation of the Changjiang summer freshwater discharge. The correlation analysis indicated that the CDW spread eastward in the East China Sea with a time lag of 1 to 2 months after the discharge. |
| Keywords: | Ocean color remote sensing East China Sea Yangtze River Kuroshio K-means clustering |
| 本文献已被 SpringerLink 等数据库收录！ | |