基于遥感和地统计分析的滑坡监测研究评述

Study on Monitoring Landslides Based on RS and Geostatistics

在滑坡监测过程中,常规技术方法往往会受到气候与地形的限制,且连续观测能力较差,实施困难较大。而遥感技术可以克服观测条件的限制,并可针对滑坡不同阶段实行监测。此外,地统计分析方法可充分利用遥感数据本身具有的空间相关性,可以提高影像信息提取的准确性。因此,遥感与地统计方法集成用于滑坡监测具有广阔的应用前景。

Generally, traditional methods for monitoring landslides are limited by weather and topographic conditions. Mainly because of the ability of continuous monitoring, remote sensing is used in detecting landslide activity in a timely manner. On the basis of post-classification remote sensing images, the information of landslide conditions can be directly obtained and used for the landslide hazard assessment by comparing data of different periods. Furthermore, making the best use of spatial correlation included in remote sensing data, geostatistical approach can improve the accuracy of image information extraction. The integration of the two technologies is of great application perspective.