地质模拟中数据插值方法的应用

地质模拟是地学研究的新手段之一。地质模拟需要将离散的有限空间样本点数据转变为连续、可视的地质剖面或地质体。因此,根据有限个空间样本点数据进行外推插值是地质模拟的一个重要问题。防止模拟失真,提高仿真性,是地质模拟的关键,而插值方法的选择将直接影响着模拟的精度和真实性。本文简要介绍了几种主要的地质数据插值方法,对其在地质模拟的数据插值中应用选择作了对比分析。

Interpolation Methods in Geological Simulation

Geological simulation is one of the most important methods in geological study. The geological problems belong to macroscopical and continuous problems. But,we could only get finite and discrete data of spatial swatch. We need to convert them to continuous and visual geological section plane or geological body by using some interpolation methods. We should use the geological data sufficiently to get more useful information for geological study,because it is very difficult to collect geological data and the collection expense is very high; so data interpolation is one of the more important issues in geological simulation and also one of the important technical methods in geological data processing. It is not only the core of geological simulation,but is also is the guideline for the interpolation method selection,namely，“Preventing distortion of simulation,improving the precision of simulation”. The selection of interpolation method in different geological simulations is determined by the complexity and levity of geological body and the special applicable range of existing interpolation methods. The method of interpolation which we chose affects the precision and reality of simulation directly. In this paper,we briefly introduce the principle and applicability of several major and widely used geological data interpolation methods in allusion to the complexity of geological data interpolation in geological simulation,and discuss the choice of geological data interpolation method in different conditions.