Schmucker, 1970 (Scripps) - MTNet
Schmucker, 1970 (Scripps) - MTNet
Schmucker, 1970 (Scripps) - MTNet
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<strong>Schmucker</strong>: Geomagnetic Variations 91<br />
semicircular elevation is that of a 2 -dimensional dipole, superimposed upon<br />
a uniform horizontal field, when the field distribution in the z-plane is uniform<br />
and horizontal. Thus,<br />
2<br />
hH(u, v) = (R/r) cos 28<br />
2 .<br />
zH(u,v) =(R/r) sm 28<br />
(6.28)<br />
with cos 8 = ulr and l == u2 + }.<br />
The anomalous field of model "b" in figure 3S has been derived from these<br />
formulae. Similar profiles above elevations of semi elliptic and triangular<br />
cross section can be found in Rikitake and Witham's article (1964, pp. 40,<br />
41).