摘要
通过对粤西及海南岛东北部海区现场调查,取得了大量悬浮体激光粒度数据。分析发现,调查海区悬浮体总体积浓度值普遍较低,中值粒径分布表层大于底层。对总体积浓度、中值粒径平面图及断面图分析后发现,春夏季调查海区悬浮物主要分为粤西、琼州海峡东及海南岛东三部分,且三处悬浮物均存在明显的分界;调查海区大部分海域中值粒径的分布具有在表层近岸小于离岸、在垂向上表层高于底层的特征,琼州海峡内表层中值粒径低于口外。认为生物作用及絮凝作用对该海域悬浮体形成及形态具有重大影响。
Based on the investigation data of LISST in the sea areas of west Guangdong and east Hainan,the characters of total volume concentration and median grain size distribution are studied in the paper.It is found that the total volume concentration is low in most of the areas,in spring and summer the suspended matter is mainly divided into three parts obviously,which are the inshore area of west Guangdong,Qiongzhou strait and the inshore area of east Hainan.It is also found that the surface median grain size value of inshore area is smaller than that of offshore area,and the value of the surface water is bigger than that of the bottom＇s.As for the Qiongzhou strait,the surface median grain size value inside the strait is smaller than that outside.All of those show that the biological and flocculating actions greatly affect the formation and pattern of the suspended matter in the areas.
出处
《热带地理》
北大核心
2012年第1期6-10,共5页
Tropical Geography
基金
我国近海海洋综合调查与评价专项(908-01-CJ17)
关键词
激光粒度
悬浮体
粤西
琼东北
in-situ grain size
suspended matter
the north of the South China Sea
Northeast of Qiongzhou Strait
