This paper presents a spatial analysis method based on multi-temporal DEM elevation changes and DOM images changes and gives a qualitative and quantitative analysis of the terrain change.
提出了多时相dem的高程变化与DOM影像变化分析协同的空间分析方法，对地表变迁进行了定性与定量的分析。
This paper is based on multi-temporal NDVI data and presents time series analysis, which is used for extracting seasonal information of vegetation in one year.
本文就以多时相的NDVI数据为基础，通过时间序列分析方法，提取植被的季节性变化特征。
A dynamic analysis was also applied to the water depth using multi temporal channel maps and a database of water depth of the Lower Yangtze River was also set up.
对多期航道水深测量资料进行动态分析，建成航道水深数据库。
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