Proactive disclosure Print version ![Print version Print version](/web/20061209063053im_/http://gsc.nrcan.gc.ca/esst_images/_printversion2.gif) ![ÿ](/web/20061209063053im_/http://gsc.nrcan.gc.ca/esst_images/_spacer.gif) | ![ÿ](/web/20061209063053im_/http://gsc.nrcan.gc.ca/esst_images/_spacer.gif) | ![Geological Survey of Canada Geological Survey of Canada](/web/20061209063053im_/http://gsc.nrcan.gc.ca/esst_images/gsc_e.jpeg) Natural Resources Canada > Earth Sciences Sector > Geological Survey of Canada > Geomagnetism
Geomagnetism
The Earth's magnetic field (or geomagnetic field) is an ever-changing
phenomenon that influences human activity and the natural world in a
myriad of ways. The geomagnetic field changes from place to place, and
on time scales ranging from seconds to decades to eons. These changes
can affect health and safety, and economic well-being. The geomagnetic
field, along with its associated phenomena, can both assist and degrade
navigation and surveying techniques; it can impede geophysical exploration;
it can disrupt electric power utilities, and pipeline operations; and
it can influence modern communications systems, spacecraft, and more.
This web site and its companion website
(Spaceweather Canada)
describe the work of the Geomagnetic Hazards Project of
the Geological Survey of Canada
in monitoring and predicting the changes in the geomagnetic field throughout Canada.
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