期刊
MARINE GEORESOURCES & GEOTECHNOLOGY
卷 -, 期 -, 页码 -出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/1064119X.2023.2261015
关键词
Ferromanganese crust; mineral exploration; multibeam echo sounder; surface sediment thickness
This study developed a method to quantitatively estimate the distribution of ferromanganese crusts (FMCs) and thickness of the surface sediment (TSS) by determining the relationship between topographic features and backscatter intensity using statistical analyses. The results showed that FMCs and TSS could be quantitatively evaluated with high accuracies, providing valuable information for future mineral explorations.
The estimation of the distribution of ferromanganese crusts (FMCs) is determined using the threshold of backscatter intensity of the multibeam echo sounder in ground-truth data; however, this is not accurate. This study developed a method to quantitatively estimate the distribution of FMCs and thickness of the surface sediment (TSS) by determining the relationship between topographic features, backscatter intensity using statistical analyses. Thus, the exposure of FMCs and TSS was quantitatively evaluated with accuracies of 17% and 2.5 m, respectively. This method can efficiently estimate distributions of FMC and TSS of entire seamounts for the benefit of future mineral explorations.
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