Physics
Scientific paper
Aug 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001ep%26s...53..843s&link_type=abstract
Earth, Planets and Space, Volume 53, p. 843-849.
Physics
1
Scientific paper
Poynting vectors of Pc 5 pulsations observed in the dayside outer magnetosphere are examined with the magnetic and electric field data simultaneously observed by the GEOTAIL satellite. Poynting energy can be estimated as about 10-8-10-6 W/m2 in both directions across and along the magnetic field-line. However, the energy propagating across the magnetic field-line is larger than the energy propagating along the magnetic field-line. From this result we can estimate the Pc 5 wave energy flowing into the inner magnetosphere during an hour as 1010-1013 J, which is one or two orders less than the substorm energy (about 1014-1015 J). However, by taking into account of the continuous activation of Pc 5 pulsations in the outer magnetosphere, Pc 5 waves should play an important role for energetics in the magnetosphere.
Kokubun Susumu
Mukai Tadashi
Sakurai Takashi
Shinkai Y.
Tonegawa Yoshihiro
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