摘要
针对江苏沿海尤其是辐射沙脊群海域水沙动力环境复杂,难以实时更新实地海洋流场调查数据的问题,根据2014年1月韩国高分遥感影像GOCI与现场同步潮汐数据资料,运用最大交叉相关系数法,遥感模拟分析了辐射沙脊群海表瞬时流场。结果表明,在辐射沙脊群海域琼港-洋口港一带,近岸海流场变化明显,海流自沿岸滩涂带流向外海;同时远岸瞬时流场的涡旋及流场瞬时方向变化亦较清晰。通过遥感分析法观测海表流场,在一定程度上解决了基础资料更新难的问题,实现了实时检测辐射沙脊群海表流场变化的目的。
Due to the complexity of water and sediment dynamic environment in the radial sand ridges, the real-time survey data are difficult to obtain in terms of current technology. Based on real-time data of geostationary ocean color image(GOCI) and tide wave in January of 2014, this article used the maximum cross correlation coefficient method to acquire the instantaneous sea surface current of radial sand ridges. The results show that in near-shore shallow water, the surface current is obviously offshore; while in far-shore deep water, the surface current is obvious eddy current. Using remote sensing analysis method to observe sea surface current can greatly solve the difficulty of the sea surface current data update.
出处
《地理空间信息》
2017年第9期37-40,共4页
Geospatial Information
基金
国家海洋公益性行业科研专项资助项目(201005006-3)
江苏省基础研究计划(自然科学基金)资助项目(BK2012414)
关键词
海表流场
遥感分析
MCC法
辐射沙脊群
sea surface current
remote sensing analysis
MCC method
radial sand ridges
