Bathymetry of the Coral Reefs of Weizhou Island Based on Multispectral Satellite Images

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 中科院边缘海地质重点实验室

	Bathymetry of the Coral Reefs of Weizhou Island Based on Multispectral Satellite Images
	Huang, RY; Yu, KF; Wang, YH; Wang, JK; Mu, L; Wang, WH; rongyonghuang@163.com; kefuyu@scsio.ac.cn; wyh@gxu.edu.cn; jikun363@163.com
刊名	REMOTE SENSING
	2017
卷号	9 期号:7 页码:750-
关键词	Water Depth Coral Reef Multispectral Image Bathymetry Adjustment
英文摘要	Shallow water depth measurements using multispectral images are crucial for marine surveying and mapping. At present, relevant studies either depend on the use of other auxiliary data (such as field water depths or water column data) or contain too many unknown variables, thus making these studies suitable only for images that contain enough visible wavebands. To solve this problem, a Quasi-Analytical Algorithm (QAA) approach is proposed in this paper for estimating the water depths around Weizhou Island by developing a QAA to estimate the diffuse attenuation coefficients and simplifying the parameterization of the bathymetric model. The approach contains an initialization sub-approach and a novel global adjustment sub-approach. It is not only independent of other auxiliary data but also greatly reduces the number of unknowns. Experimental results finally demonstrated that the Root Mean Square Errors (RMSEs) were 1.01 m and 0.77 m for the ZY-3 image and the WorldView-3 (WV-3) image, respectively, so the approach is competitive to other QAA bathymetric methods. Besides, the global adjustment sub-approach was also seen to be superior to common smoothing filters: if the Signal-to-Noise Ratio (SNR) is as low as 42, i.e., ZY-3, it can smooth the water depths and improve the accuracies, otherwise can avoid the over-smoothing of water depths.
资助项目	MSG
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/16515]
专题	南海海洋研究所_中科院边缘海地质重点实验室
通讯作者	rongyonghuang@163.com; kefuyu@scsio.ac.cn; wyh@gxu.edu.cn; jikun363@163.com; mulin999@126.com; wwhuan258@163.com
推荐引用方式 GB/T 7714	Huang, RY,Yu, KF,Wang, YH,et al. Bathymetry of the Coral Reefs of Weizhou Island Based on Multispectral Satellite Images[J]. REMOTE SENSING,2017,9(7):750-.
APA	Huang, RY.,Yu, KF.,Wang, YH.,Wang, JK.,Mu, L.,...&wwhuan258@163.com.(2017).Bathymetry of the Coral Reefs of Weizhou Island Based on Multispectral Satellite Images.REMOTE SENSING,9(7),750-.
MLA	Huang, RY,et al."Bathymetry of the Coral Reefs of Weizhou Island Based on Multispectral Satellite Images".REMOTE SENSING 9.7(2017):750-.