| LEE Dong-Kyu,KWON Jae-Il,SON SeungHyun. 2015. Horizontal distribution of Changjiang Diluted Water in summer inferred from total suspended sediment in the Yellow Sea and East China Sea. Acta Oceanologica Sinica, 34(12):44－50 |
| Horizontal distribution of Changjiang Diluted Water in summer inferred from total suspended sediment in the Yellow Sea and East China Sea |
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| Received:July 20, 2015 Revised:September 21, 2015 |
| DOI：10.1007/s13131-015-0776-7 |
| Key words:Yellow and East China Seas Changjiang diluted water total suspended sediment MODIS |
| 中文关键词: |
| 基金项目:The Research Fund Program of Research Institute for Basic Sciences, Pusan National University, Korea, 2012; the Project entitled "Cooperative Project on Korea-China Bilateral Committee on Ocean Science" by the Ministry of Oceans and Fisheries, Korea and China-Korea Joint Ocean Research Center. |
| Author Name | Affiliation | E-mail | | LEE Dong-Kyu | Pusan National University, Busan 609-735, Republic of Korea | | | KWON Jae-Il | Coastal Disaster Research Center, Korea Institute of Ocean Science and Technology, Ansan 426-744, Republic of Korea
China-Korea Joint Ocean Research Center, Qingdao 266061, China | jikwon@kiast.ac.kr | | SON SeungHyun | Cooperative Institute for Research in the Atmosphere, Colorado State University, Fort Collins, CO 80523, USA | |
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| Abstract: |
| During the summer in the Yellow Sea and East China Sea, the resuspension of the bottom sediment is obstructed by strong stratification and, as a result, the concentration of total suspended sediment (TSS) can be used as an excellent tracer for Changjiang Diluted Water (CDW). To analyze the spatial and temporal variations of the CDW distribution, the monthly mean TSS from Moderate Resolution Imaging Spectroradiometer (MODIS) ocean color data are constructed and are converted to salinity using the relationship between salinity observed from AQUARIUS and TSS. The process produces the detailed horizontal distribution of salinity with very high resolution (1 km). From monthly mean salinity map from 2002 to 2012 in July and August, the expansion patterns of CDW are analyzed. The southerly wind in July and southeasterly wind in August transport the CDW eastward and northeastward, respectively. It is found that the yearly variation of the expansion of CDW toward the southern sea area of Korea is mostly due to the variation of southerly wind and the fluctuations of fresh water discharge into the Changjiang estuary show relatively little impact on the eastward extend of CDW. When 11-year mean (from 2002 to 2012) salinity map in August is compared with World Ocean Atlas 2013, it is revealed that wind in August strengthened six times from 1994 and it causes the expansion of CDW extended 150 km further eastward. |
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