Figure F89. Schematic view of the NEREID-195 system of the WP-1 seafloor borehole seismological observatory. Two seismometers are cemented in the borehole, and the signals from seismometers are sent to the seafloor by separate cables. The data control unit (MEG-195) combines the data to one stream and sends it to the data recording unit (SAM-195). The power is supplied from lithium batteries housed in titanium spheres (LBU). The WP-1 observatory has two LBUs. ROV = remotely operated vehicle, SAM = storage acquisition module, PAT = power access terminal, MEG = multiple-access expandable gateway, BIA = borehole instrument assembly, HD = hard drive.

Figure F89. Schematic view of the NEREID-195 system of the WP-1 seafloor borehole seismological observatory. Two seismometers are cemented in the borehole, and the signals from seismometers are sent to the seafloor by separate cables. The data control unit (MEG-195) combines the data to one stream and sends it to the data recording unit (SAM-195). The power is supplied from lithium batteries housed in titanium spheres (LBU). The WP-1 observatory has two LBUs. ROV = remotely operated vehicle, SAM = storage acquisition module, PAT = power access terminal, MEG = multiple-access expandable gateway, BIA = borehole instrument assembly, HD = hard drive.