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Thunderstorm III
Thunderstorm III
Professor Michael C.Kelley
and Steven Baker,
a graduate student in electrical engineering,
recently launched a Black Brant IX from
NASA Wallops Flight Facility in a
continuing investigation of the electromagnetic coupling between
lightning and the Earth's ionosphere. The rocket was instrumented
with vector electric and magnetic field probes provided by Cornell
Unversity, a lightning imager from the
University
of Washington Geophysics Department, particle detectors from the
University of New
Hampshire, a star imager to provide absolute attitude informations
from the Technical University of Denmark, and a Fluxgate Vector
Magnetometer from the Sodankylä
Geophysical Observatory.
Below is a plot of the electric field data from t+100 to t+120 seconds
(about 175 km). The top two frames are perpendicular channels & show
the field modulated at the rocket spin frequency.The bottom two frames
are parallel channels and show the effects of the ACS gas bursts from
t=100 to t=104 seconds.
Much more interesting page of whistlers observed on the flight complete with
sound file, time series, and periodograms.
Back to the SPP rockets page
Back to the SPP home page
PLEASE send comments about these pages to
wes@ece.cornell.edu.
Last updated 2002 January 9.
Major development 1996 March 9.