| 1 |
dgoldberg |
1.3 |
C $Header: /u/gcmpack/MITgcm_contrib/dgoldberg/streamice/streamice_visc_beta.F,v 1.2 2012/07/19 18:46:05 dgoldberg Exp $ |
| 2 |
heimbach |
1.1 |
C $Name: $ |
| 3 |
|
|
|
| 4 |
|
|
#include "STREAMICE_OPTIONS.h" |
| 5 |
|
|
|
| 6 |
|
|
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 7 |
|
|
|
| 8 |
|
|
CBOP |
| 9 |
|
|
SUBROUTINE STREAMICE_VISC_BETA ( myThid ) |
| 10 |
|
|
|
| 11 |
|
|
C /============================================================\ |
| 12 |
|
|
C | SUBROUTINE | |
| 13 |
|
|
C | o | |
| 14 |
|
|
C |============================================================| |
| 15 |
|
|
C | | |
| 16 |
|
|
C \============================================================/ |
| 17 |
|
|
IMPLICIT NONE |
| 18 |
|
|
|
| 19 |
|
|
C === Global variables === |
| 20 |
|
|
#include "SIZE.h" |
| 21 |
|
|
#include "GRID.h" |
| 22 |
|
|
#include "EEPARAMS.h" |
| 23 |
|
|
#include "PARAMS.h" |
| 24 |
|
|
#include "STREAMICE.h" |
| 25 |
|
|
#include "STREAMICE_CG.h" |
| 26 |
|
|
|
| 27 |
|
|
C !INPUT/OUTPUT ARGUMENTS |
| 28 |
|
|
INTEGER myThid |
| 29 |
|
|
! _RL taudx (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 30 |
|
|
! _RL taudx (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 31 |
|
|
|
| 32 |
|
|
#ifdef ALLOW_STREAMICE |
| 33 |
|
|
|
| 34 |
|
|
|
| 35 |
|
|
C LOCAL VARIABLES |
| 36 |
|
|
INTEGER i, j, bi, bj, k, l, umid, vmid |
| 37 |
|
|
_RL ux, uy, vx, vy, exx, eyy, exy, second_inv, unorm |
| 38 |
|
|
|
| 39 |
|
|
DO bj=myByLo(myThid),myByHi(myThid) |
| 40 |
|
|
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 41 |
|
|
DO j=1,sNy |
| 42 |
|
|
DO i=1,sNx |
| 43 |
|
|
IF (STREAMICE_hmask(i,j,bi,bj).eq.1) THEN |
| 44 |
|
|
|
| 45 |
|
|
umid = 0 |
| 46 |
|
|
vmid = 0 |
| 47 |
|
|
|
| 48 |
|
|
DO k=0,1 |
| 49 |
|
|
DO l=0,1 |
| 50 |
|
|
umid = umid + 0.25 * |
| 51 |
|
|
& dxG(i,j+l,bi,bj)*dyG(i+k,j,bi,bj) * |
| 52 |
|
|
& recip_rA(i,j,bi,bj) * |
| 53 |
|
|
& U_streamice(i+k,j+l,bi,bj) |
| 54 |
|
|
vmid = vmid + 0.25 * |
| 55 |
|
|
& dxG(i,j+l,bi,bj)*dyG(i+k,j,bi,bj) * |
| 56 |
|
|
& recip_rA(i,j,bi,bj) * |
| 57 |
|
|
& V_streamice(i+k,j+l,bi,bj) |
| 58 |
|
|
ENDDO |
| 59 |
|
|
ENDDO |
| 60 |
|
|
|
| 61 |
|
|
ux = (U_streamice(i+1,j+1,bi,bj) + |
| 62 |
|
|
& U_streamice(i+1,j,bi,bj) - |
| 63 |
|
|
& U_streamice(i,j+1,bi,bj) - |
| 64 |
|
|
& U_streamice(i,j,bi,bj)) / |
| 65 |
|
|
& (2. * dxF(i,j,bi,bj)) |
| 66 |
|
|
vx = (V_streamice(i+1,j+1,bi,bj) + |
| 67 |
|
|
& V_streamice(i+1,j,bi,bj) - |
| 68 |
|
|
& V_streamice(i,j+1,bi,bj) - |
| 69 |
|
|
& V_streamice(i,j,bi,bj)) / |
| 70 |
|
|
& (2. * dxF(i,j,bi,bj)) |
| 71 |
|
|
uy = (U_streamice(i+1,j+1,bi,bj) - |
| 72 |
|
|
& U_streamice(i+1,j,bi,bj) + |
| 73 |
|
|
& U_streamice(i,j+1,bi,bj) - |
| 74 |
|
|
& U_streamice(i,j,bi,bj)) / |
| 75 |
|
|
& (2. * dyF(i,j,bi,bj)) |
| 76 |
|
|
vy = (V_streamice(i+1,j+1,bi,bj) - |
| 77 |
|
|
& V_streamice(i+1,j,bi,bj) + |
| 78 |
|
|
& V_streamice(i,j+1,bi,bj) - |
| 79 |
|
|
& V_streamice(i,j,bi,bj)) / |
| 80 |
|
|
& (2. * dyF(i,j,bi,bj)) |
| 81 |
|
|
|
| 82 |
|
|
exx = ux + k1AtC_str(i,j,bi,bj)*vmid |
| 83 |
|
|
eyy = vy + k2AtC_str(i,j,bi,bj)*umid |
| 84 |
|
|
exy = .5*(uy+vx) + |
| 85 |
|
|
& k1AtC_str(i,j,bi,bj)*umid + k2AtC_str(i,j,bi,bj)*vmid |
| 86 |
|
|
|
| 87 |
|
|
!A_glen_isothermal, n_glen, eps_glen_min, |
| 88 |
|
|
|
| 89 |
|
|
second_inv = |
| 90 |
|
|
& sqrt(exx**2+eyy**2+exx*eyy+exy**2+eps_glen_min**2) |
| 91 |
|
|
|
| 92 |
|
|
|
| 93 |
|
|
|
| 94 |
|
|
visc_streamice(i,j,bi,bj) = |
| 95 |
dgoldberg |
1.3 |
& .5 * A_glen(i,j,bi,bj)**(-1./n_glen) * |
| 96 |
heimbach |
1.1 |
& second_inv**((1-n_glen)/n_glen) * H_streamice(i,j,bi,bj) |
| 97 |
|
|
|
| 98 |
|
|
unorm = sqrt(umid**2+vmid**2+eps_glen_min**2) |
| 99 |
|
|
tau_beta_eff_streamice(i,j,bi,bj) = |
| 100 |
dgoldberg |
1.2 |
& C_basal_friction(i,j,bi,bj)**2 * |
| 101 |
heimbach |
1.1 |
& unorm ** (n_basal_friction-1) * |
| 102 |
|
|
& float_frac_streamice (i,j,bi,bj) |
| 103 |
|
|
|
| 104 |
|
|
ENDIF |
| 105 |
|
|
ENDDO |
| 106 |
|
|
ENDDO |
| 107 |
|
|
ENDDO |
| 108 |
|
|
ENDDO |
| 109 |
|
|
|
| 110 |
|
|
|
| 111 |
|
|
#endif |
| 112 |
|
|
RETURN |
| 113 |
|
|
END |
Parent Directory
| 
Revision Log
| 
Revision Graph