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dgoldberg |
1.10 |
C $Header: /u/gcmpack/MITgcm/pkg/streamice/streamice_driving_stress.F,v 1.9 2015/07/04 10:54:24 dgoldberg Exp $ |
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dgoldberg |
1.1 |
C $Name: $ |
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#include "STREAMICE_OPTIONS.h" |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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CBOP |
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SUBROUTINE STREAMICE_DRIVING_STRESS( myThid ) |
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! O taudx, |
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! O taudy ) |
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C /============================================================\ |
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C | SUBROUTINE | |
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C | o | |
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C |============================================================| |
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C | | |
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C \============================================================/ |
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IMPLICIT NONE |
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C === Global variables === |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "GRID.h" |
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#include "STREAMICE.h" |
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#include "STREAMICE_CG.h" |
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C !INPUT/OUTPUT ARGUMENTS |
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INTEGER myThid |
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! _RL taudx (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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! _RL taudx (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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#ifdef ALLOW_STREAMICE |
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C LOCAL VARIABLES |
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INTEGER i, j, bi, bj, k, l, |
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& Gi, Gj |
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LOGICAL at_west_bdry, at_east_bdry, |
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& at_north_bdry, at_south_bdry |
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dgoldberg |
1.6 |
_RL grd_below_sl |
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dgoldberg |
1.2 |
_RL sx, sy, diffx, diffy, geom_fac |
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dgoldberg |
1.7 |
_RL i_rhow |
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_RL avg_density |
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& (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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#ifdef STREAMICE_FIRN_CORRECTION |
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_RL firn_depth, h |
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#endif |
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dgoldberg |
1.1 |
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IF (myXGlobalLo.eq.1) at_west_bdry = .true. |
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IF (myYGlobalLo.eq.1) at_south_bdry = .true. |
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IF (myXGlobalLo-1+sNx*nSx.eq.Nx) |
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& at_east_bdry = .false. |
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IF (myYGlobalLo-1+sNy*nSy.eq.Ny) |
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& at_north_bdry = .false. |
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dgoldberg |
1.7 |
#ifdef STREAMICE_FIRN_CORRECTION |
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firn_depth = streamice_density * |
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& streamice_firn_correction |
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& / (streamice_density-streamice_density_firn) |
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#endif |
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i_rhow = 1./streamice_density_ocean_avg |
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dgoldberg |
1.1 |
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DO bj = myByLo(myThid), myByHi(myThid) |
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DO bi = myBxLo(myThid), myBxHi(myThid) |
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dgoldberg |
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DO j=1-OLy+1,sNy+OLy-1 |
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DO i=1-OLx+1,sNx+OLx-1 |
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dgoldberg |
1.1 |
taudx_SI(i,j,bi,bj) = 0. _d 0 |
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taudy_SI(i,j,bi,bj) = 0. _d 0 |
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dgoldberg |
1.7 |
#ifdef STREAMICE_FIRN_CORRECTION |
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if (STREAMICE_apply_firn_correction) then |
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if (streamice_hmask(i,j,bi,bj).eq.1) then |
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h = h_streamice(i,j,bi,bj) |
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if (h.lt.firn_depth) then |
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avg_density(i,j,bi,bj) = streamice_density_firn |
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else |
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avg_density(i,j,bi,bj) = streamice_density * |
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& (h - streamice_firn_correction) / h |
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endif |
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endif |
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else |
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#endif |
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avg_density(i,j,bi,bj) = streamice_density |
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#ifdef STREAMICE_FIRN_CORRECTION |
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endif |
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#endif |
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dgoldberg |
1.1 |
ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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DO bj = myByLo(myThid), myByHi(myThid) |
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DO bi = myBxLo(myThid), myBxHi(myThid) |
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dgoldberg |
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DO i=1,sNx |
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DO j=1,sNy |
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dgoldberg |
1.1 |
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diffx = 0. _d 0 |
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diffy = 0. _d 0 |
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sx = 0. _d 0 |
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sy = 0. _d 0 |
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Gi = (myXGlobalLo-1)+(bi-1)*sNx+i |
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Gj = (myYGlobalLo-1)+(bj-1)*sNy+j |
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dgoldberg |
1.2 |
IF (streamice_umask(i,j,bi,bj).eq.1.0) THEN |
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dgoldberg |
1.1 |
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dgoldberg |
1.2 |
IF (streamice_hmask(i-1,j,bi,bj).eq.1.0.AND. |
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& streamice_hmask(i,j,bi,bj).eq.1.0) THEN |
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dgoldberg |
1.5 |
! geom_fac = sqrt(rA(i-1,j,bi,bj)*recip_rA(i,j,bi,bj)* |
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! & dxF(i,j,bi,bj)*recip_dxF(i-1,j,bi,bj)) |
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dgoldberg |
1.2 |
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dgoldberg |
1.7 |
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dgoldberg |
1.2 |
taudx_si(i,j,bi,bj) = taudx_si(i,j,bi,bj) - |
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dgoldberg |
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& 0.25 * dyG(i,j,bi,bj) * |
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dgoldberg |
1.7 |
& gravity * |
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& (H_streamice(i,j,bi,bj)*avg_density(i,j,bi,bj)+ |
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& H_streamice(i-1,j,bi,bj)*avg_density(i-1,j,bi,bj)) * |
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dgoldberg |
1.2 |
& (surf_el_streamice(i,j,bi,bj)- |
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dgoldberg |
1.5 |
& surf_el_streamice(i-1,j,bi,bj)) |
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dgoldberg |
1.2 |
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dgoldberg |
1.7 |
CCC |
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dgoldberg |
1.3 |
taudx_si(i,j,bi,bj) = taudx_si(i,j,bi,bj) - |
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& streamice_density * gravity * |
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& streamice_bg_surf_slope_x * .25 * rA(i,j,bi,bj) * |
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& (H_streamice(i-1,j,bi,bj) + H_streamice(i,j,bi,bj)) |
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dgoldberg |
1.7 |
CCC |
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dgoldberg |
1.3 |
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dgoldberg |
1.2 |
ELSE IF (streamice_hmask(i-1,j,bi,bj).eq.1.0) THEN |
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IF (float_frac_streamice(i-1,j,bi,bj) .eq. 1.0) THEN |
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dgoldberg |
1.6 |
#ifdef USE_ALT_RLOW |
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IF (R_low_si(i-1,j,bi,bj) .lt. 0. _d 0) then |
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#else |
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IF (R_low(i-1,j,bi,bj) .lt. 0. _d 0) then |
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#endif |
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grd_below_sl = 1. _d 0 |
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else |
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grd_below_sl = 0. _d 0 |
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endif |
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dgoldberg |
1.2 |
taudx_si(i,j,bi,bj) = taudx_si(i,j,bi,bj) + |
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dgoldberg |
1.5 |
& 0.25 * dyG(i,j,bi,bj) * |
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dgoldberg |
1.2 |
& gravity * |
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dgoldberg |
1.7 |
& (avg_density(i-1,j,bi,bj) * H_streamice(i-1,j,bi,bj)**2- |
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dgoldberg |
1.2 |
#ifdef USE_ALT_RLOW |
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dgoldberg |
1.6 |
& streamice_density_ocean_avg * grd_below_sl * |
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& R_low_si(i-1,j,bi,bj)**2) |
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dgoldberg |
1.2 |
#else |
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dgoldberg |
1.6 |
& streamice_density_ocean_avg * grd_below_sl * |
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& R_low(i-1,j,bi,bj)**2) |
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dgoldberg |
1.2 |
#endif |
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ELSE |
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dgoldberg |
1.1 |
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dgoldberg |
1.7 |
#ifdef STREAMICE_FIRN_CORRECTION |
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if (STREAMICE_apply_firn_correction) then |
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if (H_streamice(i-1,j,bi,bj).lt.firn_depth) then |
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taudx_si(i,j,bi,bj) = taudx_si(i,j,bi,bj) + |
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& 0.25 * dyG(i,j,bi,bj) * |
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& streamice_density_firn * gravity * |
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& (1-streamice_density_firn*i_rhow) * |
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& H_streamice(i-1,j,bi,bj)**2 |
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else |
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taudx_si(i,j,bi,bj) = taudx_si(i,j,bi,bj) + |
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& 0.25 * dyG(i,j,bi,bj) * gravity * ( |
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dgoldberg |
1.8 |
& streamice_density_firn * firn_depth**2 + |
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dgoldberg |
1.7 |
& (h_streamice(i-1,j,bi,bj)-firn_depth) * |
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& (streamice_density_firn*firn_depth+streamice_density* |
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& (h_streamice(i-1,j,bi,bj)-streamice_firn_correction)) - |
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& streamice_density**2*i_rhow* |
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& (h_streamice(i-1,j,bi,bj)-streamice_firn_correction)**2 |
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& ) |
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endif |
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else |
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#endif |
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dgoldberg |
1.2 |
taudx_si(i,j,bi,bj) = taudx_si(i,j,bi,bj) + |
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dgoldberg |
1.5 |
& 0.25 * dyG(i,j,bi,bj) * |
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dgoldberg |
1.2 |
& streamice_density * gravity * |
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dgoldberg |
1.7 |
& (1-streamice_density*i_rhow) * |
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dgoldberg |
1.2 |
& H_streamice(i-1,j,bi,bj)**2 |
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dgoldberg |
1.1 |
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dgoldberg |
1.7 |
#ifdef STREAMICE_FIRN_CORRECTION |
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endif |
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#endif |
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dgoldberg |
1.2 |
ENDIF |
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dgoldberg |
1.1 |
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dgoldberg |
1.2 |
ELSE IF (streamice_hmask(i,j,bi,bj).eq.1.0) THEN |
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dgoldberg |
1.1 |
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dgoldberg |
1.2 |
IF (float_frac_streamice(i,j,bi,bj) .eq. 1.0) THEN |
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dgoldberg |
1.6 |
#ifdef USE_ALT_RLOW |
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IF (R_low_si(i,j,bi,bj) .lt. 0. _d 0) then |
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#else |
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IF (R_low(i,j,bi,bj) .lt. 0. _d 0) then |
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#endif |
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grd_below_sl = 1. _d 0 |
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else |
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grd_below_sl = 0. _d 0 |
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endif |
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dgoldberg |
1.2 |
taudx_si(i,j,bi,bj) = taudx_si(i,j,bi,bj) - |
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dgoldberg |
1.5 |
& 0.25 * dyG(i,j,bi,bj) * |
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dgoldberg |
1.2 |
& gravity * |
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dgoldberg |
1.7 |
& (avg_density(i,j,bi,bj) * H_streamice(i,j,bi,bj)**2 - |
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dgoldberg |
1.2 |
#ifdef USE_ALT_RLOW |
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dgoldberg |
1.6 |
& streamice_density_ocean_avg * grd_below_sl * |
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& R_low_si(i,j,bi,bj)**2) |
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dgoldberg |
1.2 |
#else |
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dgoldberg |
1.6 |
& streamice_density_ocean_avg * grd_below_sl * |
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& R_low(i,j,bi,bj)**2) |
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dgoldberg |
1.2 |
#endif |
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dgoldberg |
1.1 |
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ELSE |
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dgoldberg |
1.7 |
#ifdef STREAMICE_FIRN_CORRECTION |
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if (STREAMICE_apply_firn_correction) then |
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if (H_streamice(i,j,bi,bj).lt.firn_depth) then |
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dgoldberg |
1.8 |
taudx_si(i,j,bi,bj) = taudx_si(i,j,bi,bj) - |
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dgoldberg |
1.7 |
& 0.25 * dyG(i,j,bi,bj) * |
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& streamice_density_firn * gravity * |
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& (1-streamice_density_firn*i_rhow) * |
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& H_streamice(i,j,bi,bj)**2 |
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else |
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dgoldberg |
1.8 |
taudx_si(i,j,bi,bj) = taudx_si(i,j,bi,bj) - |
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dgoldberg |
1.7 |
& 0.25 * dyG(i,j,bi,bj) * gravity * ( |
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dgoldberg |
1.8 |
& streamice_density_firn * firn_depth**2 + |
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dgoldberg |
1.7 |
& (h_streamice(i,j,bi,bj)-firn_depth) * |
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& (streamice_density_firn*firn_depth+streamice_density* |
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& (h_streamice(i,j,bi,bj)-streamice_firn_correction)) - |
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& streamice_density**2*i_rhow* |
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& (h_streamice(i,j,bi,bj)-streamice_firn_correction)**2 |
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& ) |
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endif |
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else |
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#endif |
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dgoldberg |
1.8 |
taudx_si(i,j,bi,bj) = taudx_si(i,j,bi,bj) - |
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dgoldberg |
1.5 |
& 0.25 * dyG(i,j,bi,bj) * |
247 |
dgoldberg |
1.2 |
& streamice_density * gravity * |
248 |
dgoldberg |
1.7 |
& (1-streamice_density*i_rhow) * |
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& H_streamice(i,j,bi,bj)**2 |
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#ifdef STREAMICE_FIRN_CORRECTION |
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endif |
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#endif |
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dgoldberg |
1.2 |
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END IF |
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END IF |
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! cells below |
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IF (streamice_hmask(i-1,j-1,bi,bj).eq.1.0.AND. |
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& streamice_hmask(i,j-1,bi,bj).eq.1.0) THEN |
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263 |
dgoldberg |
1.5 |
! geom_fac = sqrt(rA(i-1,j-1,bi,bj)*recip_rA(i,j-1,bi,bj)* |
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! & dxF(i,j-1,bi,bj)*recip_dxF(i-1,j-1,bi,bj)) |
265 |
dgoldberg |
1.2 |
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taudx_si(i,j,bi,bj) = taudx_si(i,j,bi,bj) - |
267 |
dgoldberg |
1.5 |
& 0.25 * dyg(i,j-1,bi,bj) * |
268 |
dgoldberg |
1.7 |
& gravity * |
269 |
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& (H_streamice(i,j-1,bi,bj)*avg_density(i,j-1,bi,bj)+ |
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& H_streamice(i-1,j-1,bi,bj)*avg_density(i-1,j-1,bi,bj)) * |
271 |
dgoldberg |
1.2 |
& (surf_el_streamice(i,j-1,bi,bj)- |
272 |
dgoldberg |
1.5 |
& surf_el_streamice(i-1,j-1,bi,bj)) |
273 |
dgoldberg |
1.2 |
|
274 |
dgoldberg |
1.3 |
taudx_si(i,j,bi,bj) = taudx_si(i,j,bi,bj) - |
275 |
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& streamice_density * gravity * |
276 |
dgoldberg |
1.5 |
& streamice_bg_surf_slope_x * .25 * rA(i,j-1,bi,bj) * |
277 |
dgoldberg |
1.3 |
& (H_streamice(i-1,j-1,bi,bj) + H_streamice(i,j-1,bi,bj)) |
278 |
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279 |
dgoldberg |
1.2 |
ELSE IF (streamice_hmask(i-1,j-1,bi,bj).eq.1.0) THEN |
280 |
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281 |
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IF (float_frac_streamice(i-1,j-1,bi,bj) .eq. 1.0) THEN |
282 |
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283 |
dgoldberg |
1.6 |
#ifdef USE_ALT_RLOW |
284 |
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IF (R_low_si(i-1,j-1,bi,bj) .lt. 0. _d 0) then |
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#else |
286 |
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IF (R_low(i-1,j-1,bi,bj) .lt. 0. _d 0) then |
287 |
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#endif |
288 |
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grd_below_sl = 1. _d 0 |
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else |
290 |
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grd_below_sl = 0. _d 0 |
291 |
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endif |
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293 |
dgoldberg |
1.2 |
taudx_si(i,j,bi,bj) = taudx_si(i,j,bi,bj) + |
294 |
dgoldberg |
1.5 |
& 0.25 * dyg(i,j-1,bi,bj) * |
295 |
dgoldberg |
1.2 |
& gravity * |
296 |
dgoldberg |
1.7 |
& (avg_density(i-1,j-1,bi,bj)*H_streamice(i-1,j-1,bi,bj)**2- |
297 |
dgoldberg |
1.2 |
#ifdef USE_ALT_RLOW |
298 |
dgoldberg |
1.6 |
& streamice_density_ocean_avg*grd_below_sl * |
299 |
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& R_low_si(i-1,j-1,bi,bj)**2) |
300 |
dgoldberg |
1.2 |
#else |
301 |
dgoldberg |
1.6 |
& streamice_density_ocean_avg * grd_below_sl * |
302 |
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& R_low(i-1,j-1,bi,bj)**2) |
303 |
dgoldberg |
1.2 |
#endif |
304 |
|
|
|
305 |
|
|
ELSE |
306 |
|
|
|
307 |
dgoldberg |
1.7 |
#ifdef STREAMICE_FIRN_CORRECTION |
308 |
|
|
|
309 |
|
|
if (STREAMICE_apply_firn_correction) then |
310 |
|
|
if (H_streamice(i-1,j-1,bi,bj).lt.firn_depth) then |
311 |
|
|
taudx_si(i,j,bi,bj) = taudx_si(i,j,bi,bj) + |
312 |
|
|
& 0.25 * dyG(i,j-1,bi,bj) * |
313 |
|
|
& streamice_density_firn * gravity * |
314 |
|
|
& (1-streamice_density_firn*i_rhow) * |
315 |
|
|
& H_streamice(i-1,j-1,bi,bj)**2 |
316 |
|
|
else |
317 |
|
|
taudx_si(i,j,bi,bj) = taudx_si(i,j,bi,bj) + |
318 |
|
|
& 0.25 * dyG(i,j-1,bi,bj) * gravity * ( |
319 |
dgoldberg |
1.8 |
& streamice_density_firn * firn_depth**2 + |
320 |
dgoldberg |
1.7 |
& (h_streamice(i-1,j-1,bi,bj)-firn_depth) * |
321 |
|
|
& (streamice_density_firn*firn_depth+streamice_density* |
322 |
|
|
& (h_streamice(i-1,j-1,bi,bj)-streamice_firn_correction))- |
323 |
|
|
& streamice_density**2*i_rhow* |
324 |
|
|
& (h_streamice(i-1,j-1,bi,bj)-streamice_firn_correction)**2 |
325 |
|
|
& ) |
326 |
|
|
endif |
327 |
|
|
else |
328 |
|
|
|
329 |
|
|
#endif |
330 |
dgoldberg |
1.2 |
taudx_si(i,j,bi,bj) = taudx_si(i,j,bi,bj) + |
331 |
dgoldberg |
1.7 |
& 0.25 * dyG(i,j-1,bi,bj) * |
332 |
dgoldberg |
1.2 |
& streamice_density * gravity * |
333 |
dgoldberg |
1.7 |
& (1-streamice_density*i_rhow) * |
334 |
dgoldberg |
1.2 |
& H_streamice(i-1,j-1,bi,bj)**2 |
335 |
dgoldberg |
1.7 |
#ifdef STREAMICE_FIRN_CORRECTION |
336 |
|
|
endif |
337 |
|
|
#endif |
338 |
|
|
|
339 |
|
|
|
340 |
dgoldberg |
1.1 |
|
341 |
|
|
ENDIF |
342 |
|
|
|
343 |
dgoldberg |
1.2 |
ELSE IF (streamice_hmask(i,j-1,bi,bj).eq.1.0) THEN |
344 |
|
|
|
345 |
|
|
IF (float_frac_streamice(i,j-1,bi,bj) .eq. 1.0) THEN |
346 |
dgoldberg |
1.1 |
|
347 |
dgoldberg |
1.6 |
#ifdef USE_ALT_RLOW |
348 |
|
|
IF (R_low_si(i,j-1,bi,bj) .lt. 0. _d 0) then |
349 |
|
|
#else |
350 |
|
|
IF (R_low(i,j-1,bi,bj) .lt. 0. _d 0) then |
351 |
|
|
#endif |
352 |
|
|
grd_below_sl = 1. _d 0 |
353 |
|
|
else |
354 |
|
|
grd_below_sl = 0. _d 0 |
355 |
|
|
endif |
356 |
|
|
|
357 |
dgoldberg |
1.2 |
taudx_si(i,j,bi,bj) = taudx_si(i,j,bi,bj) - |
358 |
dgoldberg |
1.5 |
& 0.25 * dyg(i,j-1,bi,bj) * |
359 |
dgoldberg |
1.2 |
& gravity * |
360 |
dgoldberg |
1.7 |
& (avg_density(i,j-1,bi,bj) * H_streamice(i,j-1,bi,bj)**2 - |
361 |
dgoldberg |
1.2 |
#ifdef USE_ALT_RLOW |
362 |
dgoldberg |
1.6 |
& streamice_density_ocean_avg * grd_below_sl * |
363 |
|
|
& R_low_si(i,j-1,bi,bj)**2) |
364 |
dgoldberg |
1.2 |
#else |
365 |
dgoldberg |
1.6 |
& streamice_density_ocean_avg * grd_below_sl * |
366 |
|
|
& R_low(i,j-1,bi,bj)**2) |
367 |
dgoldberg |
1.2 |
#endif |
368 |
dgoldberg |
1.1 |
|
369 |
dgoldberg |
1.2 |
ELSE |
370 |
dgoldberg |
1.1 |
|
371 |
dgoldberg |
1.7 |
#ifdef STREAMICE_FIRN_CORRECTION |
372 |
|
|
if (STREAMICE_apply_firn_correction) then |
373 |
|
|
if (H_streamice(i,j-1,bi,bj).lt.firn_depth) then |
374 |
dgoldberg |
1.8 |
taudx_si(i,j,bi,bj) = taudx_si(i,j,bi,bj) - |
375 |
dgoldberg |
1.7 |
& 0.25 * dyG(i,j-1,bi,bj) * |
376 |
|
|
& streamice_density_firn * gravity * |
377 |
|
|
& (1-streamice_density_firn*i_rhow) * |
378 |
|
|
& H_streamice(i,j-1,bi,bj)**2 |
379 |
|
|
else |
380 |
dgoldberg |
1.8 |
taudx_si(i,j,bi,bj) = taudx_si(i,j,bi,bj) - |
381 |
dgoldberg |
1.7 |
& 0.25 * dyG(i,j-1,bi,bj) * gravity * ( |
382 |
dgoldberg |
1.8 |
& streamice_density_firn * firn_depth**2 + |
383 |
dgoldberg |
1.7 |
& (h_streamice(i,j-1,bi,bj)-firn_depth) * |
384 |
|
|
& (streamice_density_firn*firn_depth+streamice_density* |
385 |
|
|
& (h_streamice(i,j-1,bi,bj)-streamice_firn_correction))- |
386 |
|
|
& streamice_density**2*i_rhow* |
387 |
|
|
& (h_streamice(i,j-1,bi,bj)-streamice_firn_correction)**2 |
388 |
|
|
& ) |
389 |
|
|
endif |
390 |
|
|
else |
391 |
|
|
|
392 |
|
|
#endif |
393 |
dgoldberg |
1.8 |
taudx_si(i,j,bi,bj) = taudx_si(i,j,bi,bj) - |
394 |
dgoldberg |
1.7 |
& 0.25 * dyG(i,j-1,bi,bj) * |
395 |
dgoldberg |
1.2 |
& streamice_density * gravity * |
396 |
dgoldberg |
1.7 |
& (1-streamice_density*i_rhow) * |
397 |
|
|
& H_streamice(i,j-1,bi,bj)**2 |
398 |
|
|
#ifdef STREAMICE_FIRN_CORRECTION |
399 |
|
|
endif |
400 |
|
|
#endif |
401 |
|
|
|
402 |
dgoldberg |
1.2 |
|
403 |
|
|
END IF |
404 |
|
|
END IF |
405 |
|
|
END IF ! if umask==1 |
406 |
|
|
|
407 |
|
|
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
408 |
|
|
|
409 |
|
|
IF (streamice_vmask(i,j,bi,bj).eq.1.0) THEN |
410 |
|
|
|
411 |
|
|
IF (streamice_hmask(i,j-1,bi,bj).eq.1.0.AND. |
412 |
|
|
& streamice_hmask(i,j,bi,bj).eq.1.0) THEN |
413 |
|
|
|
414 |
dgoldberg |
1.5 |
! geom_fac = sqrt(rA(i,j-1,bi,bj)*recip_rA(i,j,bi,bj)* |
415 |
|
|
! & dxF(i,j,bi,bj)*recip_dyF(i,j-1,bi,bj)) |
416 |
dgoldberg |
1.2 |
|
417 |
|
|
taudy_si(i,j,bi,bj) = taudy_si(i,j,bi,bj) - |
418 |
dgoldberg |
1.5 |
& 0.25 * dxG(i,j,bi,bj) * |
419 |
dgoldberg |
1.7 |
& gravity * |
420 |
|
|
& (H_streamice(i,j,bi,bj)*avg_density(i,j,bi,bj)+ |
421 |
|
|
& H_streamice(i,j-1,bi,bj)*avg_density(i,j-1,bi,bj))* |
422 |
dgoldberg |
1.2 |
& (surf_el_streamice(i,j,bi,bj)- |
423 |
dgoldberg |
1.5 |
& surf_el_streamice(i,j-1,bi,bj)) |
424 |
dgoldberg |
1.2 |
|
425 |
dgoldberg |
1.3 |
taudy_si(i,j,bi,bj) = taudy_si(i,j,bi,bj) - |
426 |
|
|
& streamice_density * gravity * |
427 |
|
|
& streamice_bg_surf_slope_y * .25 * rA(i,j,bi,bj) * |
428 |
|
|
& (H_streamice(i,j-1,bi,bj) + H_streamice(i,j,bi,bj)) |
429 |
|
|
|
430 |
dgoldberg |
1.2 |
ELSE IF (streamice_hmask(i,j-1,bi,bj).eq.1.0) THEN |
431 |
|
|
|
432 |
|
|
IF (float_frac_streamice(i,j-1,bi,bj) .eq. 1.0) THEN |
433 |
|
|
|
434 |
dgoldberg |
1.6 |
#ifdef USE_ALT_RLOW |
435 |
|
|
IF (R_low_si(i,j-1,bi,bj) .lt. 0. _d 0) then |
436 |
|
|
#else |
437 |
|
|
IF (R_low(i,j-1,bi,bj) .lt. 0. _d 0) then |
438 |
|
|
#endif |
439 |
|
|
grd_below_sl = 1. _d 0 |
440 |
|
|
else |
441 |
|
|
grd_below_sl = 0. _d 0 |
442 |
|
|
endif |
443 |
|
|
|
444 |
dgoldberg |
1.2 |
taudy_si(i,j,bi,bj) = taudy_si(i,j,bi,bj) + |
445 |
dgoldberg |
1.5 |
& 0.25 * dxG(i,j,bi,bj) * |
446 |
dgoldberg |
1.2 |
& gravity * |
447 |
dgoldberg |
1.7 |
& (avg_density(i,j-1,bi,bj) * H_streamice(i,j-1,bi,bj)**2 - |
448 |
dgoldberg |
1.2 |
#ifdef USE_ALT_RLOW |
449 |
dgoldberg |
1.6 |
& streamice_density_ocean_avg * grd_below_sl * |
450 |
|
|
& R_low_si(i,j-1,bi,bj)**2) |
451 |
dgoldberg |
1.2 |
#else |
452 |
dgoldberg |
1.6 |
& streamice_density_ocean_avg * grd_below_sl * |
453 |
|
|
& R_low(i,j-1,bi,bj)**2) |
454 |
dgoldberg |
1.2 |
#endif |
455 |
dgoldberg |
1.1 |
|
456 |
|
|
ELSE |
457 |
|
|
|
458 |
dgoldberg |
1.7 |
#ifdef STREAMICE_FIRN_CORRECTION |
459 |
|
|
if (STREAMICE_apply_firn_correction) then |
460 |
|
|
if (H_streamice(i,j-1,bi,bj).lt.firn_depth) then |
461 |
dgoldberg |
1.9 |
taudy_si(i,j,bi,bj) = taudy_si(i,j,bi,bj) + |
462 |
dgoldberg |
1.10 |
& 0.25 * dxG(i,j,bi,bj) * |
463 |
dgoldberg |
1.7 |
& streamice_density_firn * gravity * |
464 |
|
|
& (1-streamice_density_firn*i_rhow) * |
465 |
|
|
& H_streamice(i,j-1,bi,bj)**2 |
466 |
|
|
else |
467 |
dgoldberg |
1.9 |
taudy_si(i,j,bi,bj) = taudy_si(i,j,bi,bj) + |
468 |
dgoldberg |
1.10 |
& 0.25 * dxG(i,j,bi,bj) * gravity * ( |
469 |
dgoldberg |
1.8 |
& streamice_density_firn * firn_depth**2 + |
470 |
dgoldberg |
1.7 |
& (h_streamice(i,j-1,bi,bj)-firn_depth) * |
471 |
|
|
& (streamice_density_firn*firn_depth+streamice_density* |
472 |
|
|
& (h_streamice(i,j-1,bi,bj)-streamice_firn_correction))- |
473 |
|
|
& streamice_density**2*i_rhow* |
474 |
|
|
& (h_streamice(i,j-1,bi,bj)-streamice_firn_correction)**2 |
475 |
|
|
& ) |
476 |
|
|
endif |
477 |
|
|
else |
478 |
|
|
|
479 |
|
|
#endif |
480 |
dgoldberg |
1.9 |
taudy_si(i,j,bi,bj) = taudy_si(i,j,bi,bj) + |
481 |
dgoldberg |
1.10 |
& 0.25 * dxG(i,j,bi,bj) * |
482 |
dgoldberg |
1.2 |
& streamice_density * gravity * |
483 |
dgoldberg |
1.7 |
& (1-streamice_density*i_rhow) * |
484 |
dgoldberg |
1.2 |
& H_streamice(i,j-1,bi,bj)**2 |
485 |
dgoldberg |
1.7 |
#ifdef STREAMICE_FIRN_CORRECTION |
486 |
|
|
endif |
487 |
|
|
#endif |
488 |
|
|
|
489 |
dgoldberg |
1.1 |
|
490 |
|
|
ENDIF |
491 |
|
|
|
492 |
dgoldberg |
1.2 |
ELSE IF (streamice_hmask(i,j,bi,bj).eq.1.0) THEN |
493 |
dgoldberg |
1.1 |
|
494 |
dgoldberg |
1.2 |
IF (float_frac_streamice(i,j,bi,bj) .eq. 1.0) THEN |
495 |
dgoldberg |
1.1 |
|
496 |
dgoldberg |
1.6 |
#ifdef USE_ALT_RLOW |
497 |
|
|
IF (R_low_si(i,j,bi,bj) .lt. 0. _d 0) then |
498 |
|
|
#else |
499 |
|
|
IF (R_low(i,j,bi,bj) .lt. 0. _d 0) then |
500 |
|
|
#endif |
501 |
|
|
grd_below_sl = 1. _d 0 |
502 |
|
|
else |
503 |
|
|
grd_below_sl = 0. _d 0 |
504 |
|
|
endif |
505 |
|
|
|
506 |
dgoldberg |
1.2 |
taudy_si(i,j,bi,bj) = taudy_si(i,j,bi,bj) - |
507 |
dgoldberg |
1.5 |
& 0.25 * dxG(i,j,bi,bj) * |
508 |
dgoldberg |
1.2 |
& gravity * |
509 |
dgoldberg |
1.7 |
& (avg_density(i,j,bi,bj) * H_streamice(i,j,bi,bj)**2 - |
510 |
dgoldberg |
1.2 |
#ifdef USE_ALT_RLOW |
511 |
dgoldberg |
1.6 |
& streamice_density_ocean_avg * grd_below_sl * |
512 |
|
|
& R_low_si(i,j,bi,bj)**2) |
513 |
dgoldberg |
1.2 |
#else |
514 |
dgoldberg |
1.6 |
& streamice_density_ocean_avg * grd_below_sl * |
515 |
|
|
& R_low(i,j,bi,bj)**2) |
516 |
dgoldberg |
1.2 |
#endif |
517 |
dgoldberg |
1.1 |
|
518 |
|
|
ELSE |
519 |
|
|
|
520 |
dgoldberg |
1.7 |
|
521 |
|
|
#ifdef STREAMICE_FIRN_CORRECTION |
522 |
|
|
if (STREAMICE_apply_firn_correction) then |
523 |
|
|
if (H_streamice(i,j,bi,bj).lt.firn_depth) then |
524 |
dgoldberg |
1.9 |
taudy_si(i,j,bi,bj) = taudy_si(i,j,bi,bj) - |
525 |
dgoldberg |
1.10 |
& 0.25 * dxG(i,j,bi,bj) * |
526 |
dgoldberg |
1.7 |
& streamice_density_firn * gravity * |
527 |
|
|
& (1-streamice_density_firn*i_rhow) * |
528 |
|
|
& H_streamice(i,j,bi,bj)**2 |
529 |
|
|
else |
530 |
dgoldberg |
1.9 |
taudy_si(i,j,bi,bj) = taudy_si(i,j,bi,bj) - |
531 |
dgoldberg |
1.10 |
& 0.25 * dxG(i,j,bi,bj) * gravity * ( |
532 |
dgoldberg |
1.8 |
& streamice_density_firn * firn_depth**2 + |
533 |
dgoldberg |
1.7 |
& (h_streamice(i,j,bi,bj)-firn_depth) * |
534 |
|
|
& (streamice_density_firn*firn_depth+streamice_density* |
535 |
|
|
& (h_streamice(i,j,bi,bj)-streamice_firn_correction))- |
536 |
|
|
& streamice_density**2*i_rhow* |
537 |
|
|
& (h_streamice(i,j,bi,bj)-streamice_firn_correction)**2 |
538 |
|
|
& ) |
539 |
|
|
endif |
540 |
|
|
else |
541 |
|
|
|
542 |
|
|
#endif |
543 |
dgoldberg |
1.9 |
taudy_si(i,j,bi,bj) = taudy_si(i,j,bi,bj) - |
544 |
dgoldberg |
1.10 |
& 0.25 * dxG(i,j,bi,bj) * |
545 |
dgoldberg |
1.2 |
& streamice_density * gravity * |
546 |
dgoldberg |
1.7 |
& (1-streamice_density*i_rhow) * |
547 |
|
|
& H_streamice(i,j,bi,bj)**2 |
548 |
|
|
#ifdef STREAMICE_FIRN_CORRECTION |
549 |
|
|
endif |
550 |
|
|
#endif |
551 |
|
|
|
552 |
dgoldberg |
1.2 |
|
553 |
|
|
END IF |
554 |
|
|
END IF |
555 |
|
|
|
556 |
|
|
! cells to left |
557 |
|
|
|
558 |
|
|
IF (streamice_hmask(i-1,j-1,bi,bj).eq.1.0.AND. |
559 |
|
|
& streamice_hmask(i-1,j,bi,bj).eq.1.0) THEN |
560 |
|
|
|
561 |
dgoldberg |
1.5 |
! geom_fac = sqrt(rA(i-1,j-1,bi,bj)*recip_rA(i-1,j,bi,bj)* |
562 |
|
|
! & dxF(i-1,j,bi,bj)*recip_dxF(i-1,j-1,bi,bj)) |
563 |
dgoldberg |
1.2 |
|
564 |
|
|
taudy_si(i,j,bi,bj) = taudy_si(i,j,bi,bj) - |
565 |
dgoldberg |
1.5 |
& 0.25 * dxG(i-1,j,bi,bj) * |
566 |
dgoldberg |
1.7 |
& gravity * |
567 |
|
|
& (H_streamice(i-1,j,bi,bj)*avg_density(i-1,j,bi,bj)+ |
568 |
|
|
& H_streamice(i-1,j-1,bi,bj)*avg_density(i-1,j-1,bi,bj))* |
569 |
dgoldberg |
1.2 |
& (surf_el_streamice(i-1,j,bi,bj)- |
570 |
dgoldberg |
1.5 |
& surf_el_streamice(i-1,j-1,bi,bj)) |
571 |
dgoldberg |
1.2 |
|
572 |
dgoldberg |
1.3 |
taudy_si(i,j,bi,bj) = taudy_si(i,j,bi,bj) - |
573 |
|
|
& streamice_density * gravity * |
574 |
dgoldberg |
1.5 |
& streamice_bg_surf_slope_y * .25 * rA(i-1,j,bi,bj) * |
575 |
dgoldberg |
1.3 |
& (H_streamice(i-1,j-1,bi,bj) + H_streamice(i-1,j,bi,bj)) |
576 |
|
|
|
577 |
|
|
|
578 |
dgoldberg |
1.2 |
ELSE IF (streamice_hmask(i-1,j-1,bi,bj).eq.1.0) THEN |
579 |
|
|
|
580 |
|
|
IF (float_frac_streamice(i-1,j-1,bi,bj) .eq. 1.0) THEN |
581 |
|
|
|
582 |
dgoldberg |
1.6 |
#ifdef USE_ALT_RLOW |
583 |
|
|
IF (R_low_si(i-1,j-1,bi,bj) .lt. 0. _d 0) then |
584 |
|
|
#else |
585 |
|
|
IF (R_low(i-1,j-1,bi,bj) .lt. 0. _d 0) then |
586 |
|
|
#endif |
587 |
|
|
grd_below_sl = 1. _d 0 |
588 |
|
|
else |
589 |
|
|
grd_below_sl = 0. _d 0 |
590 |
|
|
endif |
591 |
|
|
|
592 |
dgoldberg |
1.2 |
taudy_si(i,j,bi,bj) = taudy_si(i,j,bi,bj) + |
593 |
dgoldberg |
1.5 |
& 0.25 * dxG(i-1,j,bi,bj) * |
594 |
dgoldberg |
1.2 |
& gravity * |
595 |
dgoldberg |
1.7 |
& (avg_density(i-1,j-1,bi,bj)*H_streamice(i-1,j-1,bi,bj)**2- |
596 |
dgoldberg |
1.2 |
#ifdef USE_ALT_RLOW |
597 |
dgoldberg |
1.6 |
& streamice_density_ocean_avg*grd_below_sl * |
598 |
|
|
& R_low_si(i-1,j-1,bi,bj)**2) |
599 |
dgoldberg |
1.2 |
#else |
600 |
dgoldberg |
1.6 |
& streamice_density_ocean_avg * grd_below_sl * |
601 |
|
|
& R_low(i-1,j-1,bi,bj)**2) |
602 |
dgoldberg |
1.2 |
#endif |
603 |
dgoldberg |
1.1 |
|
604 |
|
|
ELSE |
605 |
|
|
|
606 |
dgoldberg |
1.7 |
#ifdef STREAMICE_FIRN_CORRECTION |
607 |
|
|
if (STREAMICE_apply_firn_correction) then |
608 |
|
|
if (H_streamice(i-1,j-1,bi,bj).lt.firn_depth) then |
609 |
dgoldberg |
1.9 |
taudy_si(i,j,bi,bj) = taudy_si(i,j,bi,bj) + |
610 |
dgoldberg |
1.10 |
& 0.25 * dxG(i-1,j,bi,bj) * |
611 |
dgoldberg |
1.7 |
& streamice_density_firn * gravity * |
612 |
|
|
& (1-streamice_density_firn*i_rhow) * |
613 |
|
|
& H_streamice(i-1,j-1,bi,bj)**2 |
614 |
|
|
else |
615 |
dgoldberg |
1.9 |
taudy_si(i,j,bi,bj) = taudy_si(i,j,bi,bj) + |
616 |
dgoldberg |
1.10 |
& 0.25 * dxG(i-1,j,bi,bj) * gravity * ( |
617 |
dgoldberg |
1.8 |
& streamice_density_firn * firn_depth**2 + |
618 |
dgoldberg |
1.7 |
& (h_streamice(i-1,j-1,bi,bj)-firn_depth) * |
619 |
|
|
& (streamice_density_firn*firn_depth+streamice_density* |
620 |
|
|
& (h_streamice(i-1,j-1,bi,bj)-streamice_firn_correction))- |
621 |
|
|
& streamice_density**2*i_rhow* |
622 |
|
|
& (h_streamice(i-1,j-1,bi,bj)-streamice_firn_correction)**2 |
623 |
|
|
& ) |
624 |
|
|
endif |
625 |
|
|
else |
626 |
|
|
#endif |
627 |
dgoldberg |
1.9 |
taudy_si(i,j,bi,bj) = taudy_si(i,j,bi,bj) + |
628 |
dgoldberg |
1.10 |
& 0.25 * dxG(i-1,j,bi,bj) * |
629 |
dgoldberg |
1.2 |
& streamice_density * gravity * |
630 |
dgoldberg |
1.7 |
& (1-streamice_density*i_rhow) * |
631 |
dgoldberg |
1.2 |
& H_streamice(i-1,j-1,bi,bj)**2 |
632 |
dgoldberg |
1.7 |
#ifdef STREAMICE_FIRN_CORRECTION |
633 |
|
|
endif |
634 |
|
|
#endif |
635 |
|
|
|
636 |
|
|
|
637 |
dgoldberg |
1.1 |
|
638 |
dgoldberg |
1.2 |
ENDIF |
639 |
dgoldberg |
1.1 |
|
640 |
dgoldberg |
1.2 |
ELSE IF (streamice_hmask(i-1,j,bi,bj).eq.1.0) THEN |
641 |
dgoldberg |
1.1 |
|
642 |
dgoldberg |
1.2 |
IF (float_frac_streamice(i-1,j,bi,bj) .eq. 1.0) THEN |
643 |
dgoldberg |
1.1 |
|
644 |
dgoldberg |
1.6 |
#ifdef USE_ALT_RLOW |
645 |
|
|
IF (R_low_si(i-1,j,bi,bj) .lt. 0. _d 0) then |
646 |
|
|
#else |
647 |
|
|
IF (R_low(i-1,j,bi,bj) .lt. 0. _d 0) then |
648 |
|
|
#endif |
649 |
|
|
grd_below_sl = 1. _d 0 |
650 |
|
|
else |
651 |
|
|
grd_below_sl = 0. _d 0 |
652 |
|
|
endif |
653 |
|
|
|
654 |
dgoldberg |
1.2 |
taudy_si(i,j,bi,bj) = taudy_si(i,j,bi,bj) - |
655 |
dgoldberg |
1.5 |
& 0.25 * dxG(i-1,j,bi,bj) * |
656 |
dgoldberg |
1.2 |
& gravity * |
657 |
dgoldberg |
1.7 |
& (avg_density(i-1,j,bi,bj) * H_streamice(i-1,j,bi,bj)**2 - |
658 |
dgoldberg |
1.1 |
#ifdef USE_ALT_RLOW |
659 |
dgoldberg |
1.6 |
& streamice_density_ocean_avg * grd_below_sl * |
660 |
|
|
& R_low_si(i-1,j,bi,bj)**2) |
661 |
dgoldberg |
1.2 |
#else |
662 |
dgoldberg |
1.6 |
& streamice_density_ocean_avg * grd_below_sl * |
663 |
|
|
& R_low(i-1,j,bi,bj)**2) |
664 |
dgoldberg |
1.1 |
#endif |
665 |
|
|
|
666 |
dgoldberg |
1.2 |
ELSE |
667 |
|
|
|
668 |
dgoldberg |
1.7 |
#ifdef STREAMICE_FIRN_CORRECTION |
669 |
|
|
if (STREAMICE_apply_firn_correction) then |
670 |
|
|
if (H_streamice(i-1,j,bi,bj).lt.firn_depth) then |
671 |
dgoldberg |
1.9 |
taudy_si(i,j,bi,bj) = taudy_si(i,j,bi,bj) - |
672 |
dgoldberg |
1.10 |
& 0.25 * dxG(i-1,j,bi,bj) * |
673 |
dgoldberg |
1.7 |
& streamice_density_firn * gravity * |
674 |
|
|
& (1-streamice_density_firn*i_rhow) * |
675 |
|
|
& H_streamice(i-1,j,bi,bj)**2 |
676 |
|
|
else |
677 |
dgoldberg |
1.9 |
taudy_si(i,j,bi,bj) = taudy_si(i,j,bi,bj) - |
678 |
dgoldberg |
1.10 |
& 0.25 * dxG(i-1,j,bi,bj) * gravity * ( |
679 |
dgoldberg |
1.8 |
& streamice_density_firn * firn_depth**2 + |
680 |
dgoldberg |
1.7 |
& (h_streamice(i-1,j,bi,bj)-firn_depth) * |
681 |
|
|
& (streamice_density_firn*firn_depth+streamice_density* |
682 |
|
|
& (h_streamice(i-1,j,bi,bj)-streamice_firn_correction))- |
683 |
|
|
& streamice_density**2*i_rhow* |
684 |
|
|
& (h_streamice(i-1,j,bi,bj)-streamice_firn_correction)**2 |
685 |
|
|
& ) |
686 |
|
|
endif |
687 |
|
|
else |
688 |
|
|
#endif |
689 |
dgoldberg |
1.9 |
taudy_si(i,j,bi,bj) = taudy_si(i,j,bi,bj) - |
690 |
dgoldberg |
1.10 |
& 0.25 * dxG(i-1,j,bi,bj) * |
691 |
dgoldberg |
1.2 |
& streamice_density * gravity * |
692 |
dgoldberg |
1.7 |
& (1-streamice_density*i_rhow) * |
693 |
|
|
& H_streamice(i-1,j,bi,bj)**2 |
694 |
|
|
#ifdef STREAMICE_FIRN_CORRECTION |
695 |
|
|
endif |
696 |
|
|
#endif |
697 |
|
|
|
698 |
dgoldberg |
1.2 |
|
699 |
|
|
END IF |
700 |
|
|
END IF |
701 |
|
|
END IF ! if vmask ==1 |
702 |
|
|
|
703 |
dgoldberg |
1.1 |
ENDDO |
704 |
|
|
ENDDO |
705 |
|
|
ENDDO |
706 |
|
|
ENDDO |
707 |
|
|
|
708 |
dgoldberg |
1.4 |
! taudx_SI (1,1,1,1) = taudx_SI (1,1,1,1) + |
709 |
|
|
! & streamice_v_normal_pert (1,1,1,1) |
710 |
dgoldberg |
1.7 |
! call write_fld_xy_rl("TAUDX_SI","",taudx_si,0,mythid) |
711 |
|
|
! call write_fld_xy_rl("TAUDY_SI","",taudy_si,0,mythid) |
712 |
dgoldberg |
1.4 |
|
713 |
dgoldberg |
1.1 |
|
714 |
|
|
|
715 |
|
|
#endif |
716 |
|
|
RETURN |
717 |
|
|
END |
718 |
|
|
|
719 |
|
|
|