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SUMMARY:How Do Rocks React to Outbursts from the Sun? - Dr Juliane Huebert
 \, British Geological Survey
DTSTART:20211129T180000Z
DTEND:20211129T190000Z
UID:TALK164395@talks.cam.ac.uk
CONTACT:Eloise Matthews
DESCRIPTION:Have you ever seen the northern lights flickering above? Did y
 ou know that their source (the solar wind) is interacting with Earth’s m
 agnetic field and can produce strong electrical currents in the ground? Th
 ese so-called geomagnetically induced currents (GICs) have detrimental eff
 ects on many ground-based structures like the high voltage power transmiss
 ion grid. The amplitude of GICs does depend on the ground electrical condu
 ctivity – the rocks beneath our feet! Our modern reliance on technology 
 has made us vulnerable to this natural phenomenon. A day without electrici
 ty in the UK would certainly not only be inconvenient but also have huge e
 conomic consequences. In this talk I will introduce the geohazard space we
 ather\, its interaction with the geomagnetic field and how models of condu
 ctivity help to quantify and even forecast the impacts on the power grid\,
  pipelines and the railway in the UK.
LOCATION:Tilley Lecture Theatre\, Department of Earth Sciences\, Downing S
 ite
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