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A Subsoil Inspection in a Mangrove Habitat Using Electrical Resistivity Tomography71Marine Research of the National Academy of Marine ResearchDOI: 10.29677/MR.202406_4(1).0005Figure 12. In-situ ERT layout photos at the southern area of the mangroves. The ERT layout was performed along the east part of the southern area of the mangroves. Field conduction images, including survey alignment, electrode installation, line setting, and inspection recording, are shown in Figure 12. The spatial location of survey lines for ERT inspection is schematically shown in the upper left corner of Figure 13. Both layout lengths of survey lines, BL-S-R3 and BL-S-R5, are 142 meters, with an electrode spacing of 2 meters using DD-type arrays.5.2 Southern area
