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C $Header: /u/gcmpack/MITgcm/pkg/profiles/profiles_interp_mean.F,v 1.2 2007/06/15 04:49:31 gforget Exp $ |
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C $Name: $ |
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|
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#include "PROFILES_OPTIONS.h" |
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|
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C o==========================================================o |
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C | subroutine profiles_interp | |
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C | o 3D interpolation of model counterparts | |
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C | for netcdf profiles data | |
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C | started: Gael Forget 15-March-2006 | |
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C o==========================================================o |
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|
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SUBROUTINE profiles_interp_mean( |
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O traj_cur_out, |
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I lon_cur, |
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I lat_cur, |
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I type_cur, |
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I file_cur, |
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I mytime, |
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I bi, |
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I bj, |
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I myThid |
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& ) |
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|
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implicit none |
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|
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C ==================== Global Variables =========================== |
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#include "EEPARAMS.h" |
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#include "SIZE.h" |
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#include "GRID.h" |
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c#include "DYNVARS.h" |
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#include "PARAMS.h" |
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#ifdef ALLOW_CAL |
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#include "cal.h" |
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#endif |
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#ifdef ALLOW_PROFILES |
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# include "profiles.h" |
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#else |
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integer NLEVELMAX |
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parameter (NLEVELMAX=1) |
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#endif |
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c#ifdef ALLOW_PTRACERS |
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c#include "PTRACERS_SIZE.h" |
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c#include "PTRACERS_FIELDS.h" |
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c#endif |
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C ==================== Routine Variables ========================== |
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_RL mytime |
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integer mythid |
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integer type_cur,file_cur |
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_RL traj_cur_out(NLEVELMAX) |
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_RL lon_cur,lat_cur |
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|
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#ifdef ALLOW_PROFILES |
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|
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C ==================== Local Variables ========================== |
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_RL tab_coeffs1(2,2),tab_coeffs2(2,2),tab_coeffs3(2,2) |
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_RL ponderations(2,2),pondsSUM,distance1,distance2 |
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integer i,j,k,kk,kcur,iG,jG,bi,bj |
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_RL traj_cur(nR),mask_cur(nR) |
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integer prof_i,prof_j |
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_RL lon_tmp1,lon_tmp2,lon_1,lon_2,lat_1,lat_2,tmp_coeff |
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c-- == end of interface == |
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|
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prof_i=-10 |
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prof_j=-10 |
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lon_1=-10 |
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lon_2=-10 |
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lat_1=-10 |
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lat_2=-10 |
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|
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DO j=1,sNy+1 |
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DO i=1,sNx+1 |
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|
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cgf value of j, south of the data point: |
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if (type_cur.NE.4) then |
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if ((yC(i,j,bi,bj).LE.lat_cur).AND. |
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& (yC(i,j+1,bi,bj).GT.lat_cur)) then |
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prof_j=j |
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lat_1=yC(i,j,bi,bj) |
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lat_2=yC(i,j+1,bi,bj) |
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else |
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prof_j=prof_j |
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lat_1=lat_1 |
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lat_2=lat_2 |
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endif |
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else |
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if ((yG(i,j,bi,bj).LE.lat_cur).AND. |
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& (yG(i,j+1,bi,bj).GT.lat_cur)) then |
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prof_j=j |
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lat_1=yG(i,j,bi,bj) |
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lat_2=yG(i,j+1,bi,bj) |
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else |
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prof_j=prof_j |
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lat_1=lat_1 |
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lat_2=lat_2 |
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endif |
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endif |
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|
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cgf value of i, west of the data point: |
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if (type_cur.NE.3) then |
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if (xC(i+1,j,bi,bj).LT.xC(1,j,bi,bj)) then |
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lon_tmp2=xC(i+1,j,bi,bj)+360 |
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else |
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lon_tmp2=xC(i+1,j,bi,bj) |
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endif |
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if (xC(i,j,bi,bj).LT.xC(1,j,bi,bj)) then |
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lon_tmp1=xC(i,j,bi,bj)+360 |
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else |
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lon_tmp1=xC(i,j,bi,bj) |
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endif |
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else |
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if (xG(i+1,j,bi,bj).LT.xG(1,j,bi,bj)) then |
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lon_tmp2=xG(i+1,j,bi,bj)+360 |
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else |
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lon_tmp2=xG(i+1,j,bi,bj) |
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endif |
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if (xG(i,j,bi,bj).LT.xG(1,j,bi,bj)) then |
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lon_tmp1=xG(i,j,bi,bj)+360 |
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else |
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lon_tmp1=xG(i,j,bi,bj) |
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endif |
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endif |
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if ((lon_tmp1.LE.lon_cur).AND. |
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&(lon_tmp2.GT.lon_cur)) then |
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prof_i=i |
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lon_1=lon_tmp1 |
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lon_2=lon_tmp2 |
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else |
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prof_i=prof_i |
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lon_1=lon_1 |
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lon_2=lon_2 |
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endif |
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|
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ENDDO |
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ENDDO |
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|
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|
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if ((prof_i.NE.-10).AND.(prof_j.NE.-10)) then |
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cgf) spatial interpolation |
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|
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distance1=(lat_cur-lat_1)/(lat_2-lat_1) |
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distance2=(lon_cur-lon_1)/(lon_2-lon_1) |
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tab_coeffs2(1,1)=(1-distance2)*(1-distance1) |
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tab_coeffs2(1,2)=distance2*(1-distance1) |
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tab_coeffs2(2,1)=(1-distance2)*distance1 |
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tab_coeffs2(2,2)=distance2*distance1 |
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|
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do k=1,nr |
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if (type_cur.EQ.6) then |
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tab_coeffs1(1,1)=prof_etan_mean(prof_i,prof_j,bi,bj) !SO |
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tab_coeffs1(1,2)=prof_etan_mean(prof_i+1,prof_j,bi,bj) !SE |
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tab_coeffs1(2,1)=prof_etan_mean(prof_i,prof_j+1,bi,bj) !NO |
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tab_coeffs1(2,2)=prof_etan_mean(prof_i+1,prof_j+1,bi,bj) !NZ |
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tab_coeffs3(1,1)=maskC(prof_i,prof_j,1,bi,bj) !SO |
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tab_coeffs3(1,2)=maskC(prof_i+1,prof_j,1,bi,bj) !SE |
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tab_coeffs3(2,1)=maskC(prof_i,prof_j+1,1,bi,bj) !NO |
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tab_coeffs3(2,2)=maskC(prof_i+1,prof_j+1,1,bi,bj) !NZ |
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else |
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tab_coeffs1(1,1)=0. |
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tab_coeffs1(2,1)=0. |
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tab_coeffs1(1,2)=0. |
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tab_coeffs1(2,2)=0. |
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tab_coeffs3(1,1)=0. |
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tab_coeffs3(2,1)=0. |
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tab_coeffs3(1,2)=0. |
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tab_coeffs3(2,2)=0. |
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endif |
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|
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ponderations(1,1)=tab_coeffs3(1,1)*tab_coeffs2(1,1) |
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ponderations(1,2)=tab_coeffs3(1,2)*tab_coeffs2(1,2) |
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ponderations(2,1)=tab_coeffs3(2,1)*tab_coeffs2(2,1) |
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ponderations(2,2)=tab_coeffs3(2,2)*tab_coeffs2(2,2) |
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pondsSUM=ponderations(1,1)+ponderations(2,1)+ponderations(1,2)+ |
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& ponderations(2,2) |
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|
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if (pondsSUM.GT.0) then |
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tab_coeffs1(1,1)=tab_coeffs1(1,1)*ponderations(1,1)/pondsSUM |
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tab_coeffs1(1,2)=tab_coeffs1(1,2)*ponderations(1,2)/pondsSUM |
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tab_coeffs1(2,1)=tab_coeffs1(2,1)*ponderations(2,1)/pondsSUM |
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tab_coeffs1(2,2)=tab_coeffs1(2,2)*ponderations(2,2)/pondsSUM |
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traj_cur(k)=tab_coeffs1(1,1)+tab_coeffs1(2,1)+ |
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& tab_coeffs1(1,2)+tab_coeffs1(2,2) |
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mask_cur(k)=1 |
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else |
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traj_cur(k)=0 |
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mask_cur(k)=0 |
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endif |
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enddo |
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|
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else |
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do k=1,nr |
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traj_cur(k)=0 |
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mask_cur(k)=0 |
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enddo |
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endif |
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|
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cgf vertical interpolation: |
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do kk=1,NLEVELMAX |
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traj_cur_out(kk)=0 |
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prof_mask1D_cur(kk,bi,bj)=0 |
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enddo |
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do kk=1,ProfDepthNo(file_cur,bi,bj) |
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c case 1: above first grid center=> first grid center value |
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if (prof_depth(file_cur,kk,bi,bj).LT.-rC(1)) then |
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traj_cur_out(kk)=traj_cur(1) |
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prof_mask1D_cur(kk,bi,bj)=mask_cur(1) |
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c case 2: just below last grid center=> last cell value |
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elseif (prof_depth(file_cur,kk,bi,bj).GE.-rC(nr)) then |
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if ( prof_depth(file_cur,kk,bi,bj) .LT. |
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& (-rC(nr)+drC(nr)/2) ) then |
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traj_cur_out(kk)=traj_cur(nr) |
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prof_mask1D_cur(kk,bi,bj)=mask_cur(nr) |
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endif |
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c case 3: between two grid centers |
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else |
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kcur=0 |
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do k=1,nr-1 |
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if ((prof_depth(file_cur,kk,bi,bj).GE.-rC(k)).AND. |
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& (prof_depth(file_cur,kk,bi,bj).LT.-rC(k+1))) then |
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kcur=k |
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endif |
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enddo |
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if (kcur.EQ.0) then |
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WRITE(errorMessageUnit,'(A)') |
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& 'ERROR in PROFILES_INTERP: unexpected case 1' |
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STOP 'ABNORMAL END: S/R PROFILES_INTERP' |
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endif |
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if (mask_cur(kcur+1).EQ.1.) then |
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c subcase 1: 2 wet points=>linear interpolation |
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tmp_coeff=(prof_depth(file_cur,kk,bi,bj)+rC(kcur))/ |
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& (-rC(kcur+1)+rC(kcur)) |
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traj_cur_out(kk)=(1-tmp_coeff)*traj_cur(kcur) |
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& +tmp_coeff*traj_cur(kcur+1) |
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prof_mask1D_cur(kk,bi,bj)=1 |
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if (mask_cur(kcur).EQ.0.) then |
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WRITE(errorMessageUnit,'(A)') |
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& 'ERROR in PROFILES_INTERP: unexpected case 2' |
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STOP 'ABNORMAL END: S/R PROFILES_INTERP' |
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endif |
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elseif (prof_depth(file_cur,kk,bi,bj).LT.-rF(kcur+1)) then |
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c subcase 2: only 1 wet point just above=>upper cell value |
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traj_cur_out(kk)=traj_cur(kcur) |
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prof_mask1D_cur(kk,bi,bj)=mask_cur(kcur) |
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endif |
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endif |
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enddo |
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|
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|
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#endif |
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|
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end |
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