Potential along a pipeline during geomagnetic storms and the geoelectric coast effect

Strany: 39 - 64

Jazyk: eng

The paper proposes a calculation method for assessing the potential along a pipeline located near a coastline, due to the geomagnetic induction occurring during geomagnetic storms. The algorithm is based on the generalised thin sheet model to describe the inducing geoelectric field and on the transmission line model with lumped parameters to describe the pipeline under the influence of the geoelectric field, which is supposed to have a generic polarisation. In particular, the proposed calculation method allows for the assessment of the potential profile that can be generated along the pipeline and for the identification of the zones that are more exposed to the occurrence of high electric potentials. We remind that the overpotentials generated along the infrastructure can interfere with the pipeline cathodic protection and electrical survey apparatuses, affecting their correct functioning and so increasing the corrosion risk. Therefore, this model can be an aid, also at the design stage of a new infrastructure, able to individuate the riskiest zones along the pipeline layout, subjected to the highest potentials thus allowing to minimise the threaten represented by geomagnetic storms. The peculiarity and novelty of the paper, different from previous works, is the consideration of the geoelectric coast effect in the assessment of the potential profile along the pipeline route using an approach based on the generalised thin sheet model under a generic state of polarisation of the inducing geomagnetic field.

ISO 690:

Lucca, G. 2026. Potential along a pipeline during geomagnetic storms and the geoelectric coast effect. In Contributions to Geophysics and Geodesy, vol. 56, no.1, pp. 39-64. 1338-0540. DOI: https://doi.org/10.31577/congeo.2026.56.1.3

APA:

Lucca, G. (2026). Potential along a pipeline during geomagnetic storms and the geoelectric coast effect. Contributions to Geophysics and Geodesy, 56(1), 39-64. 1338-0540. DOI: https://doi.org/10.31577/congeo.2026.56.1.3

Vydavateľ: ESI SAS

CC BY-NC-ND