Articles | Volume 17, issue 1
Ocean Sci., 17, 383–392, 2021
Ocean Sci., 17, 383–392, 2021

Research article 22 Feb 2021

Research article | 22 Feb 2021

Can seafloor voltage cables be used to study large-scale circulation? An investigation in the Pacific Ocean

Jakub Velímský et al.

Cited articles

Baringer, M. O. and Larsen, J. C.: Sixteen years of Florida Current Transport at 27 N, Geophys. Res. Lett., 28, 3179–3182, 2001. a
Chave, A. D., Filloux, J. H., and Luther, D. S.: Electromagnetic induction by ocean currents: BEMPEX, Phys. Earth Planet. In., 53, 350–359,, 1989. a
Chave, A. D., Luther, D. S., Lanzerotti, L. J., and Medford, L. V.: Geoelectric field measurements on a planetary scale: oceanographic and geophysical applications, Geophys. Res. Lett., 19, 1411–1414, 1992. a, b
Cox, C. S., Filloux, J. H., and Larsen, J. C.: Electromagnetic studies of ocean currents and electrical conductivity below the ocean-floor, in: The Sea, Wiley, New York, ISBN: 0674-01732-3, 637–693, 1971. a
Denig, W. F.: Geomagnetic kp and ap Indices, available at: (last access: 15 February 2021), 2015. a
Short summary
Marine electromagnetic (EM) signals largely depend on three factors: the direction and speed of ocean flow, the strength of Earth’s main magnetic field, and seawater’s electrical conductivity (which depends on the local temperature and salinity). Because of this, there is interest in using marine EM signals to monitor and study ocean circulation. Our study investigates using voltage data from retired seafloor telecommunication cables in the Pacific Ocean to monitor large-scale flows.