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Bathymetric mapping of shallow water surrounding Dongsha Island using QuickBird image

机译：使用QuickBird影像对东沙岛周围浅水进行测深图

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摘要

This article presents an experiment of water depth inversion using the band ratio method in Dongsha Island shallow water. The remote sensing data is from QuickBird satellite on April 19, 2004. The bathymetry result shows an extensive agreement with the charted depths. 129 points from the chart depth data were chosen to evaluate the accuracy of the inversion depth. The results show that when the water depth is less than 20m, the inversion depth is accord with the chart, while the water depth is more than 20m, the inversion depth is still among 15-25m. Therefore, the remote sensing methods can only be effective with the inversion of 20m in Dongsha Island shallow water, rather than in deep water area. The total of 109 depth points less than 20m were used to evaluate the accuracy, the root mean square error is 2.2m.
机译：本文提出了一种利用带比法对东沙岛浅水区进行水深反演的实验。遥感数据来自2004年4月19日的QuickBird卫星。测深结果表明与所绘深度有广泛的一致性。从海图深度数据中选择了129个点来评估反演深度的准确性。结果表明，当水深小于20m时，反演深度与图表一致;当水深大于20m时，反演深度仍在15-25m之间。因此，遥感方法仅在东沙岛浅水区反演20m时有效，而在深水区无效。总共少于20m的109个深度点用于评估精度，均方根误差为2.2m。

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