黄、东海陆架区悬浮体输运的时空变化规律

SPATIAL AND TEMPORAL VARIATIONS IN SUSPENDED PARTICULATE MATTER TRANSPORT ON THE YELLOW AND EAST CHINA SEA SHELF

利用NOAA卫星 1 995年 1月— 1 997年 2月的海洋遥感资料系统地分析和研究了黄、东海陆架区悬浮体向深海输运的时间和空间变化规律 ,并对其动力机制进行了分析和探讨。研究结果表明 ,黄、东海悬浮体在 1 1— 3月份为向外海输运阶段 ,5— 9月份则退向近海为内储阶段 ,4月份为输变退的月份 ,1 0月份则是退变输的月份 ,其中 3月份黄、东海悬浮体向东海深海输运得最远 ,9月份则向岸退得最远 ;黄、东海表面悬浮体向东海的输运范围一般皆位于 1 0 0m等深线以内 ,并很难越过黑潮水系 ,而输向深海的悬浮体又大都在黄海暖流的作用下回输黄海 ,其大部输向韩国西南海域。

A systematic investigation into the spatial and temporal variations of the movement of the suspended particulate matter (SPM) from coastal water to the open sea in the Yellow and East China Seas was conducted using NOAA AVHRR images from Jan. 1995 to Feb. 1997. Based on the results of these analyses,the SPM transport mechanism was also studied. It was founded that from November to March,the SPM in the Yellow and East China Seas moved into the open sea areas,while from May to September,the water bodies with large SPM values moved back to the coast. April and October were the transitional periods. The SPM moved furthest into the open sea in March while in September it retreated closest to the shore. The transport of the SPM was within the 100m isobath and could not pass the Kuroshio Current,and most of the transported SPM returned to the Yellow Sea under the influence of the Yellow Sea Warm Current and a large portion was transported toward the south west coastline of Korea.