4/98
SED2D-WES Version 4.3 Beta
TT CARD
CRANK-NICHOLSON THETA
TT CARD
Required
Field
Variable
Value
Description
0,C1-2
IC1
TO
Card group identifier
0,C3
IC3
b/
1
TETA
Crank-Nickolson THETA
>0
A value between zero and one (0.66 is recommended)
≤0
Default = 0.5 This produces the most sensitive model
response but often causes oscillations in the solution.
75
WORKING DRAFT
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