

FOLLOWUS
1.First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
2.State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan 430079, China
3.College of Mapping and Spatial Information, Shandong University of Science and Technology, Qingdao 266590, China
4.Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
tangqiuhua@fio.org.cn
529142251@qq.com
Received:01 January 2025,
Accepted:31 March 2025,
Online First:29 April 2025,
Published:01 January 2026
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TANG Qiuhua,LI Ningning,ZHANG Yujie,et al.High-precision classification of benthic habitat sediments in shallow waters of islands by multi-source data[J].Journal of Oceanology and Limnology,2026,44(01):99-108.
TANG Qiuhua,LI Ningning,ZHANG Yujie,et al.High-precision classification of benthic habitat sediments in shallow waters of islands by multi-source data[J].Journal of Oceanology and Limnology,2026,44(01):99-108. DOI: 10.1007/s00343-025-5002-7.
Benthic habitat mapping is an emerging discipline in the international marine field in recent years
providing an effective tool for marine spatial planning
marine ecological management
and decision-making applications. Seabed sediment classification is one of the main contents of seabed habitat mapping. In response to the impact of remote sensing imaging quality and the limitations of acoustic measurement range
where a single data source does not fully reflect the substrate type
we proposed a high-precision seabed habitat sediment classification method that integrates data from multiple sources. Based on WorldView-2 multi-spectral remote sensing image data and multibeam bathymetry data
constructed a random forests (RF) classifier with optimal feature selection. A seabed sediment classification experiment integrating optical remote sensing and acoustic remote sensing data was carried out in the shallow water area of Wuzhizhou Island
Hainan
South China. Different seabed sediment types
such as sand
seagrass
and coral reefs were effectively identified
with an overall classification accuracy of 92%. Experimental results show that RF matrix optimized by fusing multi-source remote sensing data for feature selection were better than the classification results of simple combinations of data sources
which improved the accuracy of seabed sediment classification. Therefore
the method proposed in this paper can be effectively applied to high-precision seabed sediment classification and habitat mapping around islands and reefs.
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