
TY  - JOUR
A1  - Dablain, M.A. 
T1  - The role and application of entropy terms for acoustic wave modeling by the finite-difference method
JF  - Exploration Geophysics
JO  - Explor. Geophys.
Y1  - 1984
VL  - 15
IS  - 3
SP  - 189
EP  - 189
KW  - 
UR  - https://doi.org/10.1071/EG984189C 
N2  - The significance of entropy-like terms is examined within the context of the finite-difference modeling of acoustic wave propagation. The numerical implications of dissipative mechanisms are tested for performance within two very distinct differencing algorithms. The two schemes which are reviewed with and without dissipation are (1) the standard central-difference scheme, and (2) the Lax?Wendroff twostep scheme. Numerical results are presented comparing the short-wavelength response of these schemes. In order to achieve this response, the linearized version of an exploding one-dimensional source is used. 
ER  -

