EarthDEM - Strips, Version 4.1

The EarthDEM Project provides high-resolution digital surface models (DSMs) for mid-latitude (non-polar) regions using optical stereo imagery, high-performance computing, and open-source photogrammetry software. EarthDEM version 4.1 DSM strips are a 20+ year time series of elevation data derived from satellite imagery using photogrammetric methods and strip assembly method version 4.1.

EarthDEM项目依托光学立体影像、高性能计算与开源摄影测量软件，为中纬度（非极地）区域提供高分辨率数字地表模型（digital surface models，DSMs）。EarthDEM 4.1版DSM条带是采用摄影测量方法与4.1版条带拼接技术，从卫星影像中提取得到的20余年高程数据时间序列。