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Schmucker, 1970 (Scripps) - MTNet

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126 Bulletin, <strong>Scripps</strong> Institution of Oceanography<br />

g. Induction program SHELCO (sec. 5.8).<br />

Evaluation of (5. 60)to determine the ratio of internal to external parts<br />

above a conductive shell and a layered core.<br />

h. Induction program NONUNI for nonuniform thin sheets above perfect<br />

conductor (sec. 6.3).<br />

Relaxation process to determine the anomalous current distribution<br />

within and the anomalous field distribution above a total conductivity profile,<br />

given at n :;:: 100 equidistant points. The total conductivity merges near the<br />

ends of the profiles into constant values which are not necessarily equal(sec.<br />

7.3). The numerical integrations of (6.8-11) are performed by the subroutines<br />

PRICE, CORE, and KERTZ. Various options exist to simulate the<br />

distant field distribution by suitable "analytical tails. "<br />

i. Internal field-line program LAPLAC (sec. 6.6).<br />

Downward extension of a given 2 -dimensional field distribution, given<br />

at n :;:: 720 equidistant points, according to (6.20). The field is developed into<br />

a series of m :;:: 24 spatial harmonics (subr. HARMOA), which after multiplication<br />

with the exponential depth factor for a certain subsurface level are<br />

converted again into the field distribution at that level (subr. SYNTHE).<br />

j. Conformal mapping programs MODEL 1, 2, 3 (sec. 6.7).<br />

Transformation of rectangular grids from the z-plane into the w-plane<br />

according to the mapping functions (6.23, 24, 26); to be used in conjunction<br />

with the programs FLDMD 1, 2, 3 to determine the transfer values hH' zH<br />

in the w-plane according to (6.22).

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