Open AccessGeomagnetic secular variation at Addis Ababa over the last four decades: comparison with 1945—2000 igrf models
Author(s) -
Tigistu Haile
Publication year - 2002
Publication title -
sinet ethiopian journal of science
Language(s) - English
Resource type - Journals
eISSN - 2520-7997
pISSN - 0379-2897
DOI - 10.4314/sinet.v25i1.18075
Subject(s) - secular variation , earth's magnetic field , geodesy , equatorial electrojet , sunspot , residual , observatory , magnetic dip , geology , mathematics , physics , geophysics , astrophysics , magnetic field , algorithm , quantum mechanics
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