高精度磁法数据网格化方法的选取  

The Griding Methods of Selection about the Data of High-precision Magnetic

作　　者：葛志广[1,2] 宋俊杰[3] 

机构地区：[1]中国地质大学地球物理与空间信息学院,北京100083 [2]教育部"地下信息探测技术与仪器"重点实验室,北京100083 [3]包钢勘察测绘研究院,包头014010

出　　处：《工程地球物理学报》2010年第2期169-172,共4页Chinese Journal of Engineering Geophysics

摘　　要：绘制等值线平面图时,首先需要对数据进行网格化处理。采用不同的网格化方法,会得到不同的绘图效果。美国Golden软件公司的Surfer软件是一套在Windows操作环境下运行的二维和三维图形绘制软件,可以利用它绘制等值线平面图。它提供了包括反距离加权插值法、克里金插值法、最小曲率法等十二种插值方法,可以满足不同应用的插值需求。根据地球物理特征及数据本身特点,选择合适的网格化方法,有利于正确研究、分析目标体。以某铁矿区所做的高精度磁法为例,说明不同网格化方法的应用效果。Drawing a plane contour map needs griding the data. If using one different griding method , the plane contour map will be different. The Surfer software made by American Golden software company is a two and three--dimensional graphic drawing software , which can be run in windows operating environment and used for drawing plane contour map. It provides 12 kinds of interpolation methods , including inverse distance to a power , kriging, which can fulfill interpolation requirement of different application direction. According to the feature of geophysics and characteristics of the data, selecting one appropriate griding method is conducive to study and analyze the target. This article uses the date of a mine made of a high--precision magnetic, as an example to illustrate the different methods of grid application effects.

关 键 词：SURFER 插值 等值线平面图 

分 类 号：P631[天文地球—地质矿产勘探]