图解法和矩值法所求平均粒径应用对比研究  

The Comparative Study of Mean Grain-size Derived from Graphic and Moment Methods

作　　者：刘涛[1] 崔高嵩[1] 王沫[1] 

机构地区：[1]海军大连舰艇学院海洋测绘科学与工程系,辽宁大连116018

出　　处：《海洋测绘》2012年第3期8-10,14,共4页Hydrographic Surveying and Charting

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.

关 键 词：海洋底质 粒度参数 平均粒径 图解法 矩值法 

分 类 号：P229.1[天文地球—大地测量学与测量工程]