中文摘要：

本文对东湖水域分别采用几何内插模型和遥感统计相关模型进行水深反演，重点对比分析2种方法在不同水深区间上计算精度的差异性，明确它们各自在水深测量中的有效阈值。通过精度对比分析，得出在4m以上的浅水区遥感反演法的精度高于几何内插法，在4m以下的深水区几何内插法的精度高于遥感反演法的结论。

英文摘要：

This paper focused on accuracy comparison between interpolation and remote sensing retrieval in bathymetry of inland lake, which were both used to simulate the water depth value in different water depths interval in the East Lake, and gave the effective threshold of the two methods in bathymetry. It was suggested that geometric interpolation would be only a trifle better than remote sensing retrieval in the overall accuracy. However, the accuracy of remote sensing retrieval method could be better than geometric interpolation in the shallow water area where the water depth is less than 4 m, while geometric interpolation could be better in the deep water area.