摘要
为了更好的了解图解法和矩值法计算平均粒径的区别,增强历史资料利用率,通过分析两种方法计算原理上的差异,利用某海区沉积物样品粒度测试结果,对两种方法所得平均粒径进行对比,并利用底质参数法分析两种方法所得平均粒径对声波浅海传播影响效果。结果表明,矩值法与图解法所得平均粒径在分析声波浅海传播影响上可以相互替代。
For the sake of realizing the difference between graphical method and moment method on calculating the mean grain-size, and enhancing the availability of historical data, this paper analyzes the diversity of the calculating principle of two kinds of methods, and contrasts the mean grain-size parameters of the two methods by the sediments＇ grain-size of some sea area, then analyzes the different mean grain-sizes＇ effect for the sound wave＇ s spread in shallow sea by the sediment parameter method. The result indicates that the two methods＇ mean grain-size can substitute each other on analyzing the sound wave＇ s spread in shallow sea.
出处
《海洋测绘》
2012年第3期8-10,14,共4页
Hydrographic Surveying and Charting
关键词
海洋底质
粒度参数
平均粒径
图解法
矩值法
marine sediment
grain-size parameter
mean grain-size
graphical method
moment method
