Ionospheric and ground response to the January 6-10 magnetic cloud event.
Fox, N. J. Laboratory for Extraterrestrial Physics, NASA/GSFC, Greenbelt
For the first time ever, the International Solar Terrestrial Physics
(ISTP) missions and collaborating observatories tracked a solar eruption
all the way, from a Coronal Mass Ejection expelled from the Sun, through
interplanetary space, until it hit the Earth's magnetic environment,
causing violent disturbances and spectacular auroral displays. The
initial expulsion occurred on the Sun on January 6, 1997, and a resulting
magnetic cloud hit the Earth on January 10.
In this presentation, we will review the ionospheric and ground effects of
the magnetic cloud passage through geospace. Specifically we will present
auroral images from the POLAR spacecraft, electric field and ionospheric
convection measurements from radars, electrojet activity from an array of
ground-based magnetometers and all-sky-camera observations. These
measurements will be discussed in terms of the global impact of the event.
Extensive information about this event is available on the World Wide Web
at the following URL:
PLEASE NOTE NEW EMAIL ADDRESS: NICOLA.FOX@GSFC.NASA.GOV