| 1 | !!---------------------------------------------------------------------- |
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| 2 | !! *** ldfdyn_2d.h90 *** |
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| 3 | !!---------------------------------------------------------------------- |
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| 4 | |
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| 5 | !!---------------------------------------------------------------------- |
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| 6 | !! OPA 9.0 , LODYC-IPSL (2003) |
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| 7 | !!---------------------------------------------------------------------- |
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| 8 | |
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| 9 | SUBROUTINE ldf_dyn_2d( ld_print ) |
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| 10 | !!---------------------------------------------------------------------- |
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| 11 | !! *** ROUTINE ldf_dyn_2d *** |
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| 12 | !! |
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| 13 | !! ** Purpose : initializations of the horizontal ocean physics |
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| 14 | !! |
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| 15 | !! ** Method : |
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| 16 | !! ORCA05 OCEAN VERSION with bilaplacian |
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| 17 | !! |
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| 18 | !! 2D eddy viscosity coefficients ( longitude, latitude ) |
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| 19 | !! |
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| 20 | !! biharmonic operator : ahm1 is defined at u-point |
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| 21 | !! ahm2 is defined at v-point |
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| 22 | !! : ahm3, ahm4 not used |
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| 23 | !! |
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| 24 | !!---------------------------------------------------------------------- |
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| 25 | !! * Arguments |
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| 26 | LOGICAL, INTENT(in) :: ld_print ! print coef. in numout |
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| 27 | |
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| 28 | !! * Local variables |
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| 29 | REAL(wp) :: za00, zdx |
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| 30 | !!---------------------------------------------------------------------- |
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| 31 | |
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| 32 | IF(lwp) WRITE(numout,*) |
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| 33 | IF(lwp) WRITE(numout,*) 'inildf: 2d eddy viscosity coefficient for bilaplacian' |
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| 34 | IF(lwp) WRITE(numout,*) '~~~~~~ --' |
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| 35 | |
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| 36 | ! Read 2d integer array to specify western boundary increase in the |
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| 37 | ! ===================== equatorial strip (20N-20S) defined at t-points |
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| 38 | |
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| 39 | ! Set ahm1 and ahm2 |
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| 40 | ! ================= |
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| 41 | |
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| 42 | ! define ahm1 and ahm2 at the right grid point position |
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| 43 | ! biharmonic : ahm1 (ahm2) defined at u- (v-) point |
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| 44 | |
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| 45 | zdx = ra * rad * 0.5 |
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| 46 | za00 = ahm0/(zdx*zdx*zdx) |
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| 47 | |
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| 48 | IF(lwp) WRITE(numout,*) ' orca05 ocean model eq resolution = ', zdx, ' eq ahm = ' ahm0 |
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| 49 | IF(lwp) WRITE(numout,*) ' zdx=', zdx |
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| 50 | DO jj = 1, jpj |
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| 51 | DO ji = 1, jpi |
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| 52 | ahm1(ji,jj) = za00 * e1u(ji,jj) * e1u(ji,jj) * e1u(ji,jj) |
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| 53 | ahm2(ji,jj) = za00 * e1v(ji,jj) * e1v(ji,jj) * e1v(ji,jj) |
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| 54 | END DO |
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| 55 | END DO |
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| 56 | |
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| 57 | ! Control print |
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| 58 | IF( lwp .AND. ld_print ) THEN |
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| 59 | WRITE(numout,*) |
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| 60 | WRITE(numout,*) 'inildf: 2D ahm1 array' |
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| 61 | CALL prihre(ahm1,jpi,jpj,1,jpi,1,1,jpj,1,1.e-3,numout) |
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| 62 | WRITE(numout,*) |
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| 63 | WRITE(numout,*) 'inildf: 2D ahm2 array' |
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| 64 | CALL prihre(ahm2,jpi,jpj,1,jpi,1,1,jpj,1,1.e-3,numout) |
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| 65 | ENDIF |
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| 66 | |
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| 67 | END SUBROUTINE ldf_dyn_2d |
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