@article{oai:nipr.repo.nii.ac.jp:00004154,
 author = {Sato,Mariko and Kamide,Yohsuke and Brekke,Asgeir and Nozawa,Satonori},
 journal = {Proceedings of the NIPR Symposium on Upper Atmosphere Physics},
 month = {Jan},
 note = {P(論文), On the basis of updated EISCAT observations, the altitude profile of ionospheric currents and conductivities is examined. It is shown that the altitude distribution of the substorm westward electrojet changes quite dynamically, depending on the electrojet phases and also on local time. The altitude at which the current density and the Hall conductivity are maximized in morning hours is lower than that at midnight, indicating that energies of precipitating electrons are relatively high in the morning sector. The altitude distribution is also found to vary systematically in relation to the electrojet phases in the morning sector : the characteristic energies of precipitating electrons tend to increase during the electrojet recovery phase.},
 pages = {18--25},
 title = {The altitude profile of ionospheric currents and conductivities deduced from EISCAT observations},
 volume = {7},
 year = {1994}
}