Ionospheric conductivities according to Doppler radar observations of stimulated turbulence |
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| Institution: | 1. The Johns Hopkins University Applied Physics Laboratory (JHU/APL), Laurel, MD 20723, USA;2. Heliophysics Science Division, NASA Goddard Spaceflight Center (GSFC), Greenbelt, MD 20771, USA;3. Swedish Institute of Space Physics (IRF), 98128 Kiruna, Sweden;4. Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China;5. Space Research Institute (IWF), Austrian Academy of Sciences, 8042 Graz, Austria;1. Laboratory for Machine Tools and Production Engineering (WZL) of the RWTH Aachen University, Campus-Boulevard 30, 52074 Aachen, Germany |
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| Abstract: | Results of Doppler radar observations are discussed of HF scattering from heater induced inhomogeneities in an underdense ionospheric plasma. The quasiperiodic variations shown by the Doppler frequency shift are associated with the E×H plasma drift in the electric field of geomagnetic pulsations. Combined with a theoretical model of hydromagnetic wave propagation, with allowance for an arbitrary dip angle of the geomagnetic field and arbitrary angle of incidence, the Doppler shift measurements at several points along the geofield tube permit estimating height-integrated ionospheric conductivities |
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