How can geomagnetic storms increase pipeline corrosion?

[oemSpace]

"While it is the geomagnetic storms (GMS) that give rise to the beautiful Northern
lights, occasionally they can also pose a serious threat for commercial and military
satellite operators, power companies, astronauts, and they can even shorten the life
of oil pipelines in Alaska by increasing pipeline corrosion."

 

Referring to above statement, I would like to know on how geomagnetic storms increase pipeline corrosion, and what is the connection between geomagnetic storms from space and pipeline on earth surface?

 

Does anyone have any suggestions?
Thanks in advance for any suggestions
 

[Marcel de Bont]

This article should tell you all you need to know http://en.wikipedia.org/wiki/Geomagnetically_induced_current

[Guest eaahumada]

Here some papers :http://www.sciencedirect.com/science/article/pii/S0926985197000190

 

Currents induced by geomagnetic storms on buried pipelines as a cause of corrosion

Journal of Applied Geophysics

Volume 38, Issue 3, January 1998, Pages 219–233

 

 

http://www.sciencedirect.com/science/article/pii/S0273117799010200

 

Geomagnetic effects on the pipe-to-soil potentials of a continental pipeline

Advances in Space Research

Volume 26, Issue 1, 2000, Pages 15–20

Space Weather: Physics and Applications

[oemSpace]

When magnetic fields move about in the vicinity of a conductor such as a wire, a geomagnetically induced current is produced in the conductor. 

Do geomagnetic storm indirectly generate induced current on increasing pipeline corrosion?  I would like to know on how those induced current cause pipeline corrosion.

 

Furthermore, what the minimum k-indices levels is to be cautious on generating induced current from geomagnetic storm?

Does anyone have any suggestions?
Thanks, to everyone very much for any suggestions :>