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Application of General Linear Models (GLM) to Assess Nodule Abundance Based on a Photographic Survey (Case Study from IOM Area, Pacific Ocean)

Department of Geology of Mineral Deposits and Mining Geology, Faculty of Geology, Geophysics and Environmental Protection, AGH University of Science and Technology, 30-059 Cracow, Poland
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Academic Editors: Pedro Madureira and Tomasz Abramowski
Minerals 2021, 11(4), 427; https://doi.org/10.3390/min11040427
Received: 12 March 2021 / Revised: 7 April 2021 / Accepted: 12 April 2021 / Published: 17 April 2021
(This article belongs to the Special Issue Exploration of Polymetallic Nodules)
The success of the future exploitation of the Pacific polymetallic nodule deposits depends on an accurate estimation of their resources, especially in small batches, scheduled for extraction in the short term. The estimation based only on the results of direct seafloor sampling using box corers is burdened with a large error due to the long sampling interval and high variability of the nodule abundance. Therefore, estimations should take into account the results of bottom photograph analyses performed systematically and in large numbers along the course of a research vessel. For photographs taken at the direct sampling sites, the relationship linking the nodule abundance with the independent variables (the percentage of seafloor nodule coverage, the genetic types of nodules in the context of their fraction distribution, and the degree of sediment coverage of nodules) was determined using the general linear model (GLM). Compared to the estimates obtained with a simple linear model linking this parameter only with the seafloor nodule coverage, a significant decrease in the standard prediction error, from 4.2 to 2.5 kg/m2, was found. The use of the GLM for the assessment of nodule abundance in individual sites covered by bottom photographs, outside of direct sampling sites, should contribute to a significant increase in the accuracy of the estimation of nodule resources. View Full-Text
Keywords: polymetallic nodules; nodule abundance; general linear models; linear regression; nodule coverage of seafloor; sediment coverage of nodules; Clarion-Clipperton Zone (CCZ); image analysis polymetallic nodules; nodule abundance; general linear models; linear regression; nodule coverage of seafloor; sediment coverage of nodules; Clarion-Clipperton Zone (CCZ); image analysis
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MDPI and ACS Style

Wasilewska-Błaszczyk, M.; Mucha, J. Application of General Linear Models (GLM) to Assess Nodule Abundance Based on a Photographic Survey (Case Study from IOM Area, Pacific Ocean). Minerals 2021, 11, 427. https://doi.org/10.3390/min11040427

AMA Style

Wasilewska-Błaszczyk M, Mucha J. Application of General Linear Models (GLM) to Assess Nodule Abundance Based on a Photographic Survey (Case Study from IOM Area, Pacific Ocean). Minerals. 2021; 11(4):427. https://doi.org/10.3390/min11040427

Chicago/Turabian Style

Wasilewska-Błaszczyk, Monika, and Jacek Mucha. 2021. "Application of General Linear Models (GLM) to Assess Nodule Abundance Based on a Photographic Survey (Case Study from IOM Area, Pacific Ocean)" Minerals 11, no. 4: 427. https://doi.org/10.3390/min11040427

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