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 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.
当前冬小麦冻害遥感监测研究大多集中于反演地表温度或受灾前后归一化植被指数ND VI变化分析。
Currently, the basic method of monitor winter wheat freeze injury is concentrated on temperature retrieval and compared with NDVI before and after freeze injury.
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