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On the submarine communication cable JASC ground self-potential stability


This investigation was undertaken for searching the source of linear trends in JASC submarine cable data over the time interval of 6 years and estimating the electrode noise level. One of the reasons for a trend is probably the potential instability in the cable ground, which happened because the titanium electrodes of the ground were placed in sea water that is electrochemically active. To study this phenomenon, we have registered the voltage variations of three titanium JASC cable electrodes, which were closely spaced (≈15 cm) and placed at a depth of ≈15 m near the coast for 70 days, synchronously with JASC cable voltage observations. The electrode noise level and coherence between channels were estimated and linear trends in electrode pair voltage variation were revealed. The estimated linear trend magnitude is about 0.28 mV/day, which is comparable with 0.21 mV/day earlier observed in JASC submarine cable data. We concluded that the linear trend in JASC cable data is, at least partly, probably caused by the titanium electrodes potential variations. This linear trend should be registered simultaneously with JASC cable voltage observation, keeping in mind the possibility of finding a procedure for removing it, in order to enhance the signal/noise ratio in data.


  1. Chave, A. D., D. S. Luther, and L. V. Medford, Geoelectric field measurement on a planetary scale: oceanographic and geophysical applications, Geophys. Res. Lett., 19, 1411–1414, 1992.

    Article  Google Scholar 

  2. Constable, S. C., A. S. Orange, G. M. Hoversten, and H. F. Morrison, Marine magnetotellurics for petroleum exploration part 1: A sea-floor equipment system, Geophysics, 63, 816–825, 1998.

    Article  Google Scholar 

  3. Egbert, G. D., J. R. Booker, and A. Schultz, Very long period magnetotellurics at tucson observatory: estimation of impedances, J. Geophys. Res., 97, 15113–15128, 1992.

    Article  Google Scholar 

  4. Lanzerotti, L. J., D. J. Thomson, A. Meloni, L. V. Medford, and C. G. Maclennan, Electromagnetic study of Atlantic continental margin using a section of a transatlantic cable, J. Geophys. Res., 91, 7417–7427, 1986.

    Article  Google Scholar 

  5. Lorne, B., F. Perrier, and J. P. Avouac, Streaming potential measurements 1. Properties of the electrical double layer from crushed rock samples, J. Geophys. Res., 104, 17857–17877, 1999.

    Article  Google Scholar 

  6. Medford, L. V., L. J. Lanzerotti, J. S. Kraus, and C. G. Maclennan, Transatlantic Earth potential variations during the March 1989 magnetic storm, Geophys. Res. Lett., 16, 1145–1148, 1989.

    Article  Google Scholar 

  7. Meloni, A., L. J. Lanzerotti, and G. P. Gregori, Induction of currents in long submarine cables by natural phenomena, Rev. Geophys. Space Physics, 21, 795–803, 1983.

    Article  Google Scholar 

  8. Perrier, F. E., G. Petiau, G. Clerc, V. Bogorodsky et al., A one-year systematic studies of electrodes for long period measurements of the electric field in geophysical environments, J. Geomag. Geolectr., 49, 1677–1696, 1997.

    Article  Google Scholar 

  9. Petiau, G. and A. Dupis, Noise, temperature coefficient, and long time stability of electrodes for telluric observations, Geoph. Prosp., 28, 792–804, 1980.

    Article  Google Scholar 

  10. Shimizu, H. and H. Utada, Detectability of decadal variations of the surface electric potential generated by zonal oscillating flows in Earth’s core, in The 3rd International Workshop on Scientific Use of Submarine Cable and Related Technologies, 315 pp., IEEE, Tokyo, 2003.

    Google Scholar 

  11. Shimizu, H., T. Koyama, and H. Utada, An observational constraint on the strength of the toroidal magnetic field at the CMB by time variation of submarine cable voltages, Geophys. Res. Lett., 25, 4023–4026, 1998.

    Article  Google Scholar 

  12. Vanyan L. L., H. Utada, H. Shimizu, Y. Tanaka et al., Studies on the lithosphere and the water transport by using the Japan Sea submarine cable (JASC): 1. Theoretical considerations, Earth Planets Space, 50, 35–42, 1998.

    Article  Google Scholar 

  13. Webb, S. C., S. C. Constable, C. S. Cox, and T. K. Deaton, A sea electric field instrument, J. Geomag. Geolectr., 37, 1115–1129, 1985.

    Article  Google Scholar 

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Correspondence to Sergey S. Starjinsky.

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Starjinsky, S.S., Nikiforov, V.M. On the submarine communication cable JASC ground self-potential stability. Earth Planet Sp 57, 903–906 (2005).

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Key words

  • electrode potential
  • coherence function
  • amplitude spectra
  • linear trend