Geomagnetic latitude is like the geographic latitude you are used to, but based on the Earth's magnetic pole instead of its rotational axis. Use this tool to find your geomagnetic latitude with a click on a map!
During a geomagnetic storm, the aurora will extend southward in geomagnetic latitude. The larger the GMD, the lower geomagnetic latitude!
Webinars and Short Courses
Sign up for CPI's webinar on 'Using magnetometer data for GIC estimation'
Texas A & M short course: Electric Grid Impacts of Geomagnetic Disturbances
Ground Response Models
Ground response models describe how a changing magnetic field relates to the induced electric field that creates the GIC hazard. These resources provide links to commonly-used ground response models.
EPRI Regional Transfer Functions (RTFs)
Earthscope Electromagnetic Transfer Functions (EMTFs)
Recent storms and space weather
Check back here for more information about recent geomagnetic storms and space weather events.