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首页> 外文期刊>Earth Surface Processes and Landforms: The journal of the British Geomorphological Research Group >Estimation and propagation of error in measurements of river channel movement from aerial imagery
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Estimation and propagation of error in measurements of river channel movement from aerial imagery

机译：航空影像测量河道运动中误差的估计和传播

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摘要

Rates of river channel migration or widening are only valid if it can be demonstrated that the amount of change in the measured parameters exceeds the measurement errors. However, it is still uncommon to see estimates of errors presented alongside rates of river channel change measured from aerial photography. Here, detailed methods are presented for the estimation of errors in quantifying channel migration rates that can be easily applied to GIS-based analysis of planform change. In addition, the impact of relaxing assumptions regarding error independence between image dates and systematic registration errors is presented and discussed. Copyright (c) 2005 John Wiley & Sons, Ltd.
机译：仅当可以证明所测参数的变化量超过测量误差时，河道迁移或拓宽的速率才有效。但是，从航空摄影中测得的误差估计值与河道变化率一起出现仍然不常见。在此，提出了用于估算量化通道迁移率中的误差的详细方法，这些方法可以轻松应用于基于GIS的计划变更分析。此外，提出并讨论了关于图像日期和系统配准误差之间的误差独立性的宽松假设的影响。版权所有（c）2005 John Wiley＆Sons，Ltd.

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