/[MITgcm]/MITgcm/pkg/shap_filt/SHAP_FILT_OPTIONS.h
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Revision 1.2 - (hide annotations) (download)
Fri Feb 2 21:36:30 2001 UTC (23 years, 3 months ago) by adcroft
Branch: MAIN
Changes since 1.1: +22 -0 lines
File MIME type: text/plain
Merged changes from branch "branch-atmos-merge" into MAIN (checkpoint34)
 - substantial modifications to algorithm sequence (dynamics.F)
 - packaged OBCS, Shapiro filter, Zonal filter, Atmospheric Physics

1 adcroft 1.2 C $Header: /u/gcmpack/models/MITgcmUV/pkg/shap_filt/Attic/SHAP_FILT_OPTIONS.h,v 1.1.2.1 2001/01/23 15:58:59 adcroft Exp $
2    
3     C Header file for package pkg/shap_filt
4    
5     #include "CPP_OPTIONS.h"
6    
7     C Use [1-d_yy^n)(1-d_xx^n] instead of [1-d_xx^n-d_yy^n]
8     C This changes the spectral response function dramatically.
9     C You need to do some analysis before changing this option. ;^)
10     #define SEQUENTIAL_2D_SHAP
11    
12     C Boundary conditions for U,V Shapiro code
13     C Horizontal shear is calculated as if the boundaries are no-slip
14     #undef NO_SLIP_SHAP
15    
16     C This invokes the older code which produces the same numbers
17     C and might even be faster because it does not do multiple
18     C exchanges within the filter. However, this requires the
19     C overlap to be sufficiently wide and also does not work
20     C for arbitrarily arranged tiles (ie. as in cubed-sphere).
21     C *DO NOT USE THIS OPTION UNLESS YOU REALLY WANT TO* :-(
22     #undef USE_OLD_SHAPIRO_FILTERS

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