HR: 09:30h
AN: SM31A-05 [Abstracts]
TI: Correlative Study of High- and Low-Altitude Whistler Wave Observations and Radiation Belt Structure
AU: * Fung, S F
EM: shing.f.fung@nasa.gov
AF: Laboratory for Solar and Space Physics, NASA Goddard Space Flight Cener, Greenbelt, MD 20771 United States
AU: Green, J L
EM: green@mail630.gsfc.nasa.gov
AF: Laboratory for Solar and Space Physics, NASA Goddard Space Flight Cener, Greenbelt, MD 20771 United States
AU: Garcia, L
EM: garcia@mail630.gsfc.nasa.gov
AF: QSS Group, Inc., Code 612.4
NASA Goddard Space Flight Cener, Greenbelt, MD 20771 United States
AU: Boardsen, S A
EM: boardsen@mail630.gsfc.nasa.gov
AF: L3 Government Services, Code 612.4
NASA Goddard Space Flight Cener, Greenbelt, MD 20771 United States
AU: Shao, X
EM: shao@mail630.gsfc.nasa.gov
AF: NAS-National Research Council, Code 612.4
NASA Goddard Space Flight Cener, Greenbelt, MD 20771 United States
AU: Tan, L C
EM: ltan@mail630.gsfc.nasa.gov
AF: QSS Group, Inc., Code 612.4
NASA Goddard Space Flight Cener, Greenbelt, MD 20771 United States
AB:
It is known that whistler mode waves permeate the plasmasphere in the form of plasmaspheric hiss, although their origin has
been a controversy for many years. Whistler waves are believed to be generated either by storm/substorm-injected energetic
electrons interacting with the cold plasmaspheric plasma or by escaping spherics from atmospheric lightning. Because of the
apparent connection of plasmaspheric hiss to the loss processes of radiation-belt particles and to regulating the belt
structure, the origin and distribution of plasmaspheric hiss remain a topic of high interest, particularly for space weather
investigations. In the present study, we investigate the possible relationship between plasmaspheric hiss characteristics
observed by the wave instruments on the Dynamics Explorer-1 and IMAGE spacecraft at high altitudes (> 1000 km) and
lightning activities at low altitudes or on the ground. Results from this study will be discussed in the context of observed
radiation belt structure.
DE: 2716 Energetic particles, precipitating
DE: 2720 Energetic particles, trapped
DE: 2730 Magnetosphere--inner
DE: 2768 Plasmasphere
DE: 2772 Plasma waves and instabilities
SC: SPA-Magnetospheric Physics [SM]
MN: 2005 Joint Assembly