Abstract
The large solar activity in mid-July 2000 produced a severe geomagnetic storm at Earth during the last half of 15 July universal time. The enhancements and changes in the ionosphere electrical current systems caused large geopotentials to be induced over oceanic distances. Across the northern Atlantic, from New Jersey to near the French coast, a geopotential as large as 0.05 V km−1 (a peak-to-peak voltage of about 300 V) was measured during the geomagnetic storm. While large, this was not among the four largest such geopotentials that have been recorded in the last 60 years across AT&T telecommunications cable routes, ocean and continental. The geomagnetic and geopotential data that were measured during the storm event are presented and discussed.
Similar content being viewed by others
References
Anderson, III, C. W., Lanzerotti, L. J., and Maclennan, C. G.: 1974, Bell System. Tech. J. 53, 187.
Campbell, W. H.: 1978, Pure Appl. Geophys. 116, 1143.
Campbell, W. H.: 1980, Geophys. J.R. Astron. Soc. 61, 437.
Campbell, W. H.: 1986, Surveys Geophys. 8, 239.
Czeck, P., Huynh, H., and Dutil, A.: 1992, 'The HydroQuebec System Blackout of 13 March 1989; System Response to Geomagnetic Disturbance', Proc. Geomagnetically Induced Currents Conf., EPRI, Palo Alto, CA, p. 19.
Kappenman, J. G.: 2001, 'An Introduction to Power Grid Impacts and Vulnerabilities from Space Weather', Proc. NATO Advanced Study Institute on Space Weather, Crete, Ch. 10.
Lanzerotti, L. J.: 1983, Space Sci. Rev. 34, 347.
Lanzerotti, L. J., Thomson, D. J., and Maclennen, C. G.: 1999, in M. A. Stuchly (ed.), 'Engineering Issues in Space Weather', Modern Radio Science 1999, Oxford University Press, Oxford, pp. 23-50.
Lanzerotti, L. J., Chave, A. D., Sayres, C. H., Medford, L. V., and Maclennan, C. G.: 1993a, J. Geophys. Res. 98, 23525.
Lanzerotti, L. J., Sayres, C. H., Medford, L. V., Kraus, J. S., Maclennan, C. G., and Thomson, D. J.: 1993b, 'Statistical Examination of Induced Voltages Across Long Oceanic Telecommunications Cables', Proc. of Solar-Terrestrial Predictions-IV Workshop, Ottawa, Canada, pp. 224-232.
Lanzerotti, L. J., Medford, L. V., Maclennan, C. G., and Thomson, D. J.: 1995, AT&T Techn. J. 74, 73.
Lanzerotti, L. J., Medford, L. V., Sayres, D. S., Maclennan, C. G., Lepping, R. P., and Szabo, A.: 1998, J. Geophys. Res. 103, 9351.
Makinen, T.: 1983, Geomagnetically Induced Currents in the Finnish Power Transmission System, Technical report, Finnish Meteorological Institute.
Medford, L. V., Lanzerotti, L. J., Kraus, J. S., and Maclennan, C. G.: 1989, Geophys. Res. Lett. 16, 1145.
Pirjola, R.: 2001, 'Geoelectromagnetic Disturbances and their Effects on Technological Systems', Proc. URSI-E/Zürich EMC, Zürich, Switzerland, pp. 136-169.
Pirjola, R., Viljanen, A., Pulkkinen, A., and Amm, O.: 2000, Phys. Chem. Earth 25, 333.
Pulkkinen A., Viljanen, A., and Pirjola, R.: 2000, Large Geomagnetically Induced Currents in the Finnish High-Voltage Power System, Technical report, Finnish Meteorological Institute.
Sayres, C. H., Lanzerotti, L. J., Medford, L. V., and Maclennan, C. G.: 1998, Adv. Space Res. 22, 135.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Lanzerotti, L., Medford, L., Maclennan, C. et al. Trans-Atlantic Geopotentials During the July 2000 Solar Event and Geomagnetic Storm. Sol Phys 204, 351–359 (2001). https://doi.org/10.1023/A:1014289410205
Issue Date:
DOI: https://doi.org/10.1023/A:1014289410205