Open AccessUT variation of internal S q currents and the oceanic effect during 1980 March 1–18
Author(s) -
Takeda Masahiko
Publication year - 1985
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1985.tb05116.x
Subject(s) - current (fluid) , earth's magnetic field , vortex , geology , variation (astronomy) , oceanography , pacific ocean , ocean current , climatology , geophysics , atmospheric sciences , geodesy , meteorology , magnetic field , physics , astrophysics , quantum mechanics
Summary. UT variation of the internal part of S q currents is examined using the geomagnetic data during 1980 March 1–18, and the effect of the ocean is found. The ratio of the internal currents to the external increases when the external current vortex comes above the Atlantic and Pacific Oceans, and the internal current vortex shifts to the oceans when the external vortex approaches the edge of the oceans. The existence of the ocean increases the total induced current by about 30 per cent and this amount is consistent with model calculations for S q by previous workers.