期刊
REMOTE SENSING OF ENVIRONMENT
卷 106, 期 1, 页码 17-27出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.rse.2006.07.011
关键词
altimetry; Global Digital Elevation Model; SRTM
This paper reports the results of a near-global validation of the SRTM DEM dataset, using a unique database of completely independent height measurements derived from satellite altimeter echoes, primarily gathered by ERS-1. These heights are obtained using a rule-based expert system which identifies each echo as 1 of 11 different characteristic shapes, and selects the optimal retracking algorithm to obtain best range to surface. The results of this comparison, which includes over 54 million altimeter derived heights, show generally very good agreement with the SRTM data, with global statistics for mean difference of 3 m and a standard deviation of 16 in. Quantitative validation results are given for each continent and are summarised here. Graphic A range of examples are included to illustrate key findings of this work and to indicate synergistic applications of these two datasets currently being studied including the potential for forest canopy measurement. (c) 2006 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据