文档介绍：
天津滨海新区地面沉降速率空间插值方法
对比研究#
秦昆,彭军还**
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(中国地质大学(北京)土地科学技术学院,北京 100083)
摘要:根据天津滨海新区离散沉降速率数据通过空间内插方法获取该区域的精确插值结果,
对于全面认识该区的沉降情况具有一定意义。本文借助 GIS 平台,利用滨海新区 2011-2012
年沉降速率数据,分别使用反距离加权法、全局多项式内插法、局部多项式内插法、径向基
函数法以及普通克里金法得到相应的空间插值结果。在视觉分析插值效果的基础上,通过交
叉验证,最终得出普通克里金法更为适合滨海新区沉降速率空间插值的结论。
关键词:地图制图学与地理信息工程;地面沉降;空间插值;交叉验证;克里金方法
中图分类号:
parative study on Tianjin Binhai New District
ground subsidence velocity interpolation methods
QIN Kun, PENG Junhuan
(School of Land Science and Technology,China University of Geoscience(beijing),beijing
100083)
Abstract: In this paper we mention how imporatent prehend the situation
of ground subsidence in Binhai New District in Tianjin through getting precise interpolation result
by several interpolation methods on discrete settlement rate data of this district. And using
settlement rate data from 2011 to 2012 of Binhai New District in Tianjin, the relative interpolation
results were got separately from Inverse Distance Weighting(IDW), Global Polynomial
Interpolation, Local polynomial Interpolation, Radial Basis Functions and Ordinary Kriging with
the help of GIS platform. Based on the analysis of visual effect and cross validation, it was
concluded that ordinary kriging was better than the other methods on interpolating the subsidence
rate data of Binhai Binhai New District .
Key words: Cartography a