摘要
空间插值是地学研究中的基本内容,也是GIS空间分析中的主要方法之一。如何科学、有效地选择适合于特定问题的插值模型显得尤为重要。为解决此问题,该文以ArcGIS提供的常用空间插值模型为研究对象,采用理论模型研究和试验对比的方式,按照各种插值模型的预测能力、先决条件、复杂程度、输出精度和处理速度等进行分类,对每种内插类型的适用性应用场景进行详细阐述。研究发现,针对同一应用场景,采用不同的内插方法产生的结果具有明显的差异,各类插值模型所关注问题的侧重点也各不相同。这进一步表明,按照插值的各种特征对常用内插方法进行分类,有助于在具体的问题中选用更为适合的内插方法,可为插值模型的科学应用提供参考。
Spatial interpolation is a basic content of geoscience research,and it is one of the most important methods of spatial analysis in GIS.It is very important to choose the interpolation model which is suitable for the specific problem in scientific and effective way in the interpolation methods.However,there is a lack of comprehensive and clear exposition on this kind of problem.In this paper,the study object is common spatial interpolation methods provided by ArcGIS,and the theoretical models and the experimental comparison methods are used to classify these interpolation models according to the prediction ability,prerequisite,complexity,output precision and processing speed of various interpolation models.It is found that there are obvious differences in the results of different interpolation methods for the same application scenario,and the focus of the various interpolation models is different.This further shows that according to the various characteristics of interpolation,it is helpful in the selection of more suitable interpolation method in the specific issues,and it also provides a reference for scientific applications of spatial interpolation models.
出处
《地理与地理信息科学》
CSCD
北大核心
2017年第6期14-18,105,共6页
Geography and Geo-Information Science
基金
国家自然科学基金项目(41601411
41671389
41471316)
关键词
空间插值
插值分类
插值适用性
空间分析
GIS
spatial interpolatio n
interpolatio n classif ication
int erpolat ion applicability
spatial analy sis
GIS
