TIMED Observations of the Signatures of Magnetic Activity in the MLTI Region placed 
into Global Context by ACE, POLAR, IMAGE, SAMPEX, FAST, NOAA/POES, and DMSP 

Kozyra, J.U., Liemohn, M.W., Mlynczak, M.G., Paxton, L.J., Skinner, W.R., 
Baker, D.N., Cattell, C.A., Germany, G.A., Mende, S.B., Pollock, C.J. 


This talk focuses on the signatures of magnetic activity as seen in perturbations 
of neutral winds, composition, minor species chemistry, and temperature observed by 
the GUVI, TIDI and SABER instruments on the TIMED spacecraft during its first 
months of operations. In particular, several moderate magnetic storms occurred 
during February 2-9, 2002 and a number of small solar proton events occurred in 
January and February. Auroral energy inputs measured at high resolution by the GUVI 
instrument are placed into the global context through comparison with IMAGE FUV and 
POLAR UVI lower-resolution images of the full auroral oval. Magnetic storm 
evolution is tracked using ENA observations from IMAGE which detail the build-up 
and asymmetries in the ring current source of high-energy ions for the MLTI. FAST, 
SAMPEX, NOAA POES and DMSP provide in-situ information on particles and fields to 
confirm and enhance the remote view provided by the TIMED/GUVI instrument and, in 
addition, supply information on the highest energy particles that penetrate deep 
into the lower thermosphere/mesosphere, perturbing the basic state observed by 
TIMED. The combination of these data sets provides a view of the sun-Earth chain 
down to one of its last links. 

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Presented at the 2002 Spring A.G.U. Meeting, 
Washington, D.C., U.S.A., 28-31 May 2002