jscott/pkg_atm2d/init_atm2d.F

#include "ctrparam.h"
#include "ATM2D_OPTIONS.h"

C     !INTERFACE:
      SUBROUTINE INIT_ATM2D(dtatm, dtocn, dtcouple, myThid )
C     *==========================================================*
C     |  INIT_1DTO2D                                             |
C     |    This initialization routine should be run after the   |
c     |    the ocean grid/pickup have been read in.               |
c     |                                                          |
c     |  Note: grid variable indices bi,bj are hard-coded 1,1    |
c     |  This should work if coupler or atmos/coupler on one     |
c     |  machine.                                                |
c     |                                                          |
C     *==========================================================*
c
        IMPLICIT NONE

C     === Global Atmosphere Variables ===
#include "ATMSIZE.h"
#include "AGRID.COM"

C     === Global Ocean Variables ===
#include "SIZE.h"
#include "EEPARAMS.h"
#include "PARAMS.h"
#include "GRID.h"

C     === Global SeaIce Parameters ===
#include "THSICE_PARAMS.h"

C     === Atmos/Ocean/Seaice Interface Variables ===
#include "ATM2D_VARS.h"
 

C     !INPUT/OUTPUT PARAMETERS:
C     === Routine arguments ===
C     dtatm, dtocn, dtcouple - Timesteps from couple.nml (hours)
C     myThid - Thread no. that called this routine.
      INTEGER dtatm, dtocn, dtcouple
      INTEGER myThid

C     LOCAL VARIABLES:
      INTEGER i,j,jj
      INTEGER ib, ibj1, ibj2
      INTEGER j_atm, mn
      _RL end1, end2
      _RL totrun_b(1:sNy)
      _RL a1,a2
      _RS atm_dyG(1:jm0)
      DATA atm_dyG/2.0,44*4.0,2.0/

      dtatmo = dtatm * 3600.
      dtocno = dtocn * 3600.
      dtcouplo= dtcouple * 3600.

C override data.ice seaice time step parms
C these will need to change if coupling procedure changed
      thSice_deltaT = dtcouplo
      thsIce_dtTemp = dtatmo
      ocean_deltaT = dtcouplo

CJRS  This next check - only kill it if not MPI?
      IF (dtocno.NE.dTtracerLev(1)) THEN
        PRINT *,'Ocean tracer timestep differs between coupler '
        PRINT *,'and the ocean data file'
        STOP
      ENDIF

c Assuming the atmospheric grid array not passed, do this:
      atm_yG(1)=-90.0
      DO j_atm=2,jm0
        atm_yG(j_atm)=atm_yG(j_atm-1)+atm_dyG(j_atm-1)
        atm_yC(j_atm-1)=(atm_yG(j_atm-1)+atm_yG(j_atm))/2.0
      ENDDO
      atm_yC(jm0)=atm_yG(jm0)+atm_dyG(jm0)/2.0

c end atmos grid initialization

      atm_oc_ind(1)=2
      atm_oc_wgt(1)=1. _d 0
      atm_oc_ind(sNy)=jm0-1
      atm_oc_wgt(sNy)=1. _d 0

      DO j=2, sNy-1

        DO jj=2,jm0-1
          IF  ((yG(1,j,1,1).ge.atm_yG(jj)).AND.
     &         (yG(1,j,1,1).lt.atm_yG(jj+1))) j_atm=jj
        ENDDO  
        
        atm_oc_ind(j)=j_atm
        IF ( yG(1,j+1,1,1) .gt. atm_yG(j_atm+1) ) THEN
           end1= sin(yG(1,j,1,1) *deg2rad)
           end2= sin(yG(1,j+1,1,1) *deg2rad)
           atm_oc_wgt(j)=(sin(atm_yG(j_atm+1) *deg2rad)-end1)/
     &                   (end2-end1)
        ELSE
          atm_oc_wgt(j)=1. _d 0
        ENDIF
      ENDDO

c
c find land fraction
c
      DO j_atm=1,jm0
        cflan(j_atm)=0. _d 0
        ocnArea(j_atm)=0. _d 0
      ENDDO

      DO j=1,sNy
        DO i=1,sNx
          IF (maskC(i,j,1,1,1).EQ.1.) THEN
            ocnArea(atm_oc_ind(j))=ocnArea(atm_oc_ind(j)) +
     &                           rA(i,j,1,1)*atm_oc_wgt(j)
            IF (atm_oc_wgt(j).lt.1.d0) THEN
              ocnArea(atm_oc_ind(j)+1)=ocnArea(atm_oc_ind(j)+1) +
     &                           rA(i,j,1,1)*(1.d0-atm_oc_wgt(j))
            ENDIF
          ENDIF
        ENDDO
      ENDDO

      DO j_atm=3,jm0-2
        cflan(j_atm)=1. _d 0 - ocnArea(j_atm) / 
     &              (2. _d 0 * PI * 6.37 _d 6 * 6.37 _d 6 * 
     &    (sin(atm_yG(j_atm+1)*deg2rad) - sin(atm_yG(j_atm)*deg2rad)))
        if (cflan(j_atm).LT.1. _d -14) cflan(j_atm)=0. _d 0
      ENDDO

C     deal with the combined atmos grid end cells...
      cflan(2)= 1. _d 0 - ocnArea(2) / 
     &         (2. _d 0*PI*6.37 _d 6*6.37 _d 6*
     &         (sin(atm_yG(3)*deg2rad)+1. _d 0))
      IF (cflan(2).LT.1. _d -14) cflan(2)=0. _d 0
      cflan(1)=cflan(2)
      cflan(jm0-1)= 1.d0 - ocnArea(jm0-1) / 
     &             (2. _d 0*PI*6.37 _d 6*6.37 _d 6*
     &             (1. _d 0-sin(atm_yG(jm0-1)*deg2rad)))
      IF (cflan(jm0-1).LT.1. _d -14) cflan(jm0-1)=0. _d 0
      cflan(jm0)=cflan(jm0-1)

      PRINT *,'Land fractions on atmospheric grid: ' 
      PRINT *, cflan
      PRINT *,'Lookup grid index, weights:'
      PRINT *, atm_oc_ind,atm_oc_wgt

c
c read in mean 1D atmos wind files -- store in memory
c
      DO j_atm=1,jm0
        DO mn=1,nForcingPer
          atau(j_atm,mn)=0. _d 0
          atav(j_atm,mn)=0. _d 0
          awind(j_atm,mn)=0. _d 0
        ENDDO
      ENDDO

      IF ( atmosTauuFile .NE. ' '  ) THEN
         OPEN(UNIT=97, FILE=atmosTauuFile,STATUS='old',
     &        ACCESS='direct', RECL=8*jm0*nForcingPer, 
     &        FORM='unformatted')
         READ(97,REC=1), atau
         CLOSE(97)
      ENDIF

      IF ( atmosTauvFile .NE. ' '  ) THEN
         OPEN(UNIT=98, FILE=atmosTauvFile, STATUS='old',
     &        ACCESS='direct', RECL=8*jm0*nForcingPer, 
     &        FORM='unformatted')
         READ(98, REC=1), atav
         CLOSE(98)
      ENDIF

      IF ( atmosWindFile .NE. ' '  ) THEN
         OPEN(UNIT=99, FILE=atmosWindFile, STATUS='old',
     &        ACCESS='direct', RECL=8*jm0*nForcingPer, 
     &        FORM='unformatted')
         READ(99, REC=1), awind
         CLOSE(99)
      ENDIF

C The polar data point values for winds are effectively N/A given the
C pole issue... although they are read in here, they are never used in
C any calculations, as the polar ocean points access the data at atmos
C 2 and jm0-1 points.


c read in runoff data
c to put runoff into specific grid cells
c
      IF ( runoffMapFile .NE. ' ' ) THEN
        CALL READ_FLD_XY_RL( runoffMapFile, ' ',
     &                      runoffVal, 0, myThid )
      ELSE
        DO j=1,sNy
          DO i=1,sNx
            if ( (maskC(i,j,1,1,1).EQ.1.) .AND.
     &          ( (maskC(i-1,j,1,1,1).EQ.0.).OR.
     &            (maskC(i+1,j,1,1,1).EQ.0.).OR.
     &            (maskC(i,j-1,1,1,1).EQ.0.).OR.
     &            (maskC(i,j+1,1,1,1).EQ.0.).OR.
     &            (maskC(i+1,j+1,1,1,1).EQ.0.).OR.
     &            (maskC(i-1,j-1,1,1,1).EQ.0.).OR.
     &            (maskC(i+1,j-1,1,1,1).EQ.0.).OR.
     &            (maskC(i-1,j+1,1,1,1).EQ.0.) ) ) THEN
              runoffVal(i,j)=1. _d 0
            ENDIF
          ENDDO
        ENDDO
      ENDIF

      DO ib=1,numBands
        ibj1=1
        if (ib.GT.1) ibj1=  rband(ib-1)+1
        ibj2=sNy
        if (ib.LT.numBands) ibj2= rband(ib)
        totrun_b(ib)=0.d0
        DO j=ibj1,ibj2
          DO i=1,sNx
            totrun_b(ib)=totrun_b(ib)+runoffVal(i,j)*maskC(i,j,1,1,1)
          ENDDO
        ENDDO
        DO j=ibj1,ibj2
          runIndex(j)= ib     ! for lookup of rband as fn. of latitude
          DO i=1,sNx
            runoffVal(i,j)=runoffVal(i,j)*maskC(i,j,1,1,1)/totrun_b(ib)
          ENDDO
        ENDDO
      ENDDO

      CALL INIT_SUMVARS(myThid)
 
C     Initialize 1D diagnostic variables 
      DO j_atm=1,jm0
        DO mn=1,nForcingPer
          sum_tauu_ta(j_atm,mn)= 0. _d 0
          sum_tauv_ta(j_atm,mn)= 0. _d 0
          sum_wsocean_ta(j_atm,mn)= 0. _d 0
          sum_ps4ocean_ta(j_atm,mn)= 0. _d 0
        ENDDO
      ENDDO

C     Initialize 2D diagnostic variables 
      DO i=1-OLx,sNx+OLx
        DO j=1-OLy,sNy+OLy
          DO mn=1,nForcingPer
            qnet_atm_ta(i,j,mn)= 0. _d 0
            evap_atm_ta(i,j,mn)= 0. _d 0
            precip_atm_ta(i,j,mn)= 0. _d 0
            runoff_atm_ta(i,j,mn)= 0. _d 0
            sum_qrel_ta(i,j,mn)= 0. _d 0
            sum_frel_ta(i,j,mn)= 0. _d 0
          ENDDO
          qnet_atm(i,j)= 0. _d 0
          evap_atm(i,j)= 0. _d 0
          precip_atm(i,j)= 0. _d 0
          runoff_atm(i,j)= 0. _d 0
          sum_qrel(i,j)= 0. _d 0
          sum_frel(i,j)= 0. _d 0
        ENDDO
      ENDDO

C     Initialize following for safety and/or cold start
      DO i=1-OLx,sNx+OLx
        DO j=1-OLy,sNy+OLy
          pass_runoff(i,j)= 0. _d 0
          pass_qnet(i,j)= 0. _d 0
          pass_evap(i,j)= 0. _d 0
          pass_precip(i,j)= 0. _d 0
          pass_fu(i,j)= 0. _d 0
          pass_fv(i,j)= 0. _d 0
          pass_wspeed(i,j)= 0. _d 0
          pass_solarnet(i,j)= 0. _d 0
          pass_slp(i,j)= 0. _d 0
          pass_siceLoad(i,j)= 0. _d 0
          pass_pCO2(i,j)= 0. _d 0
          pass_prcAtm(i,j)= 0. _d 0
          sFluxFromIce(i,j)= 0. _d 0
        ENDDO
      ENDDO

      RETURN
      END

1	jscott	1.1	#include "ctrparam.h"
2			#include "ATM2D_OPTIONS.h"
3
4			C !INTERFACE:
5			SUBROUTINE INIT_ATM2D(dtatm, dtocn, dtcouple, myThid )
6			C ==========================================================
7			C \| INIT_1DTO2D \|
8			C \| This initialization routine should be run after the \|
9			c \| the ocean grid/pickup have been read in. \|
10			c \| \|
11			c \| Note: grid variable indices bi,bj are hard-coded 1,1 \|
12			c \| This should work if coupler or atmos/coupler on one \|
13			c \| machine. \|
14			c \| \|
15			C ==========================================================
16			c
17			IMPLICIT NONE
18
19			C === Global Atmosphere Variables ===
20			#include "ATMSIZE.h"
21			#include "AGRID.COM"
22
23			C === Global Ocean Variables ===
24			#include "SIZE.h"
25			#include "EEPARAMS.h"
26			#include "PARAMS.h"
27			#include "GRID.h"
28
29			C === Global SeaIce Parameters ===
30			#include "THSICE_PARAMS.h"
31
32			C === Atmos/Ocean/Seaice Interface Variables ===
33			#include "ATM2D_VARS.h"
34
35
36			C !INPUT/OUTPUT PARAMETERS:
37			C === Routine arguments ===
38			C dtatm, dtocn, dtcouple - Timesteps from couple.nml (hours)
39			C myThid - Thread no. that called this routine.
40			INTEGER dtatm, dtocn, dtcouple
41			INTEGER myThid
42
43			C LOCAL VARIABLES:
44			INTEGER i,j,jj
45			INTEGER ib, ibj1, ibj2
46			INTEGER j_atm, mn
47			_RL end1, end2
48			_RL totrun_b(1:sNy)
49			_RL a1,a2
50			_RS atm_dyG(1:jm0)
51			DATA atm_dyG/2.0,44*4.0,2.0/
52
53			dtatmo = dtatm * 3600.
54			dtocno = dtocn * 3600.
55			dtcouplo= dtcouple * 3600.
56
57			C override data.ice seaice time step parms
58			C these will need to change if coupling procedure changed
59			thSice_deltaT = dtcouplo
60			thsIce_dtTemp = dtatmo
61			ocean_deltaT = dtcouplo
62
63			CJRS This next check - only kill it if not MPI?
64			IF (dtocno.NE.dTtracerLev(1)) THEN
65			PRINT *,'Ocean tracer timestep differs between coupler '
66			PRINT *,'and the ocean data file'
67			STOP
68			ENDIF
69
70			c Assuming the atmospheric grid array not passed, do this:
71			atm_yG(1)=-90.0
72			DO j_atm=2,jm0
73			atm_yG(j_atm)=atm_yG(j_atm-1)+atm_dyG(j_atm-1)
74			atm_yC(j_atm-1)=(atm_yG(j_atm-1)+atm_yG(j_atm))/2.0
75			ENDDO
76			atm_yC(jm0)=atm_yG(jm0)+atm_dyG(jm0)/2.0
77
78			c end atmos grid initialization
79
80			atm_oc_ind(1)=2
81			atm_oc_wgt(1)=1. _d 0
82			atm_oc_ind(sNy)=jm0-1
83			atm_oc_wgt(sNy)=1. _d 0
84
85			DO j=2, sNy-1
86
87			DO jj=2,jm0-1
88			IF ((yG(1,j,1,1).ge.atm_yG(jj)).AND.
89			& (yG(1,j,1,1).lt.atm_yG(jj+1))) j_atm=jj
90			ENDDO
91
92			atm_oc_ind(j)=j_atm
93			IF ( yG(1,j+1,1,1) .gt. atm_yG(j_atm+1) ) THEN
94			end1= sin(yG(1,j,1,1) *deg2rad)
95			end2= sin(yG(1,j+1,1,1) *deg2rad)
96			atm_oc_wgt(j)=(sin(atm_yG(j_atm+1) *deg2rad)-end1)/
97			& (end2-end1)
98			ELSE
99			atm_oc_wgt(j)=1. _d 0
100			ENDIF
101			ENDDO
102
103			c
104			c find land fraction
105			c
106			DO j_atm=1,jm0
107			cflan(j_atm)=0. _d 0
108			ocnArea(j_atm)=0. _d 0
109			ENDDO
110
111			DO j=1,sNy
112			DO i=1,sNx
113			IF (maskC(i,j,1,1,1).EQ.1.) THEN
114			ocnArea(atm_oc_ind(j))=ocnArea(atm_oc_ind(j)) +
115			& rA(i,j,1,1)*atm_oc_wgt(j)
116			IF (atm_oc_wgt(j).lt.1.d0) THEN
117			ocnArea(atm_oc_ind(j)+1)=ocnArea(atm_oc_ind(j)+1) +
118			& rA(i,j,1,1)*(1.d0-atm_oc_wgt(j))
119			ENDIF
120			ENDIF
121			ENDDO
122			ENDDO
123
124			DO j_atm=3,jm0-2
125			cflan(j_atm)=1. _d 0 - ocnArea(j_atm) /
126			& (2. _d 0 * PI * 6.37 _d 6 * 6.37 _d 6 *
127			& (sin(atm_yG(j_atm+1)deg2rad) - sin(atm_yG(j_atm)deg2rad)))
128			if (cflan(j_atm).LT.1. _d -14) cflan(j_atm)=0. _d 0
129			ENDDO
130
131			C deal with the combined atmos grid end cells...
132			cflan(2)= 1. _d 0 - ocnArea(2) /
133			& (2. _d 0PI6.37 _d 66.37 _d 6
134			& (sin(atm_yG(3)*deg2rad)+1. _d 0))
135			IF (cflan(2).LT.1. _d -14) cflan(2)=0. _d 0
136			cflan(1)=cflan(2)
137			cflan(jm0-1)= 1.d0 - ocnArea(jm0-1) /
138			& (2. _d 0PI6.37 _d 66.37 _d 6
139			& (1. _d 0-sin(atm_yG(jm0-1)*deg2rad)))
140			IF (cflan(jm0-1).LT.1. _d -14) cflan(jm0-1)=0. _d 0
141			cflan(jm0)=cflan(jm0-1)
142
143			PRINT *,'Land fractions on atmospheric grid: '
144			PRINT *, cflan
145			PRINT *,'Lookup grid index, weights:'
146			PRINT *, atm_oc_ind,atm_oc_wgt
147
148			c
149			c read in mean 1D atmos wind files -- store in memory
150			c
151			DO j_atm=1,jm0
152			DO mn=1,nForcingPer
153			atau(j_atm,mn)=0. _d 0
154			atav(j_atm,mn)=0. _d 0
155			awind(j_atm,mn)=0. _d 0
156			ENDDO
157			ENDDO
158
159			IF ( atmosTauuFile .NE. ' ' ) THEN
160			OPEN(UNIT=97, FILE=atmosTauuFile,STATUS='old',
161			& ACCESS='direct', RECL=8jm0nForcingPer,
162			& FORM='unformatted')
163			READ(97,REC=1), atau
164			CLOSE(97)
165			ENDIF
166
167			IF ( atmosTauvFile .NE. ' ' ) THEN
168			OPEN(UNIT=98, FILE=atmosTauvFile, STATUS='old',
169			& ACCESS='direct', RECL=8jm0nForcingPer,
170			& FORM='unformatted')
171			READ(98, REC=1), atav
172			CLOSE(98)
173			ENDIF
174
175			IF ( atmosWindFile .NE. ' ' ) THEN
176			OPEN(UNIT=99, FILE=atmosWindFile, STATUS='old',
177			& ACCESS='direct', RECL=8jm0nForcingPer,
178			& FORM='unformatted')
179			READ(99, REC=1), awind
180			CLOSE(99)
181			ENDIF
182
183			C The polar data point values for winds are effectively N/A given the
184			C pole issue... although they are read in here, they are never used in
185			C any calculations, as the polar ocean points access the data at atmos
186			C 2 and jm0-1 points.
187
188
189			c read in runoff data
190			c to put runoff into specific grid cells
191			c
192			IF ( runoffMapFile .NE. ' ' ) THEN
193			CALL READ_FLD_XY_RL( runoffMapFile, ' ',
194			& runoffVal, 0, myThid )
195			ELSE
196			DO j=1,sNy
197			DO i=1,sNx
198			if ( (maskC(i,j,1,1,1).EQ.1.) .AND.
199			& ( (maskC(i-1,j,1,1,1).EQ.0.).OR.
200			& (maskC(i+1,j,1,1,1).EQ.0.).OR.
201			& (maskC(i,j-1,1,1,1).EQ.0.).OR.
202			& (maskC(i,j+1,1,1,1).EQ.0.).OR.
203			& (maskC(i+1,j+1,1,1,1).EQ.0.).OR.
204			& (maskC(i-1,j-1,1,1,1).EQ.0.).OR.
205			& (maskC(i+1,j-1,1,1,1).EQ.0.).OR.
206			& (maskC(i-1,j+1,1,1,1).EQ.0.) ) ) THEN
207			runoffVal(i,j)=1. _d 0
208			ENDIF
209			ENDDO
210			ENDDO
211			ENDIF
212
213			DO ib=1,numBands
214			ibj1=1
215			if (ib.GT.1) ibj1= rband(ib-1)+1
216			ibj2=sNy
217			if (ib.LT.numBands) ibj2= rband(ib)
218			totrun_b(ib)=0.d0
219			DO j=ibj1,ibj2
220			DO i=1,sNx
221			totrun_b(ib)=totrun_b(ib)+runoffVal(i,j)*maskC(i,j,1,1,1)
222			ENDDO
223			ENDDO
224			DO j=ibj1,ibj2
225			runIndex(j)= ib ! for lookup of rband as fn. of latitude
226			DO i=1,sNx
227			runoffVal(i,j)=runoffVal(i,j)*maskC(i,j,1,1,1)/totrun_b(ib)
228			ENDDO
229			ENDDO
230			ENDDO
231
232			CALL INIT_SUMVARS(myThid)
233
234			C Initialize 1D diagnostic variables
235			DO j_atm=1,jm0
236			DO mn=1,nForcingPer
237			sum_tauu_ta(j_atm,mn)= 0. _d 0
238			sum_tauv_ta(j_atm,mn)= 0. _d 0
239			sum_wsocean_ta(j_atm,mn)= 0. _d 0
240			sum_ps4ocean_ta(j_atm,mn)= 0. _d 0
241			ENDDO
242			ENDDO
243
244			C Initialize 2D diagnostic variables
245			DO i=1-OLx,sNx+OLx
246			DO j=1-OLy,sNy+OLy
247			DO mn=1,nForcingPer
248			qnet_atm_ta(i,j,mn)= 0. _d 0
249			evap_atm_ta(i,j,mn)= 0. _d 0
250			precip_atm_ta(i,j,mn)= 0. _d 0
251			runoff_atm_ta(i,j,mn)= 0. _d 0
252			sum_qrel_ta(i,j,mn)= 0. _d 0
253			sum_frel_ta(i,j,mn)= 0. _d 0
254			ENDDO
255			qnet_atm(i,j)= 0. _d 0
256			evap_atm(i,j)= 0. _d 0
257			precip_atm(i,j)= 0. _d 0
258			runoff_atm(i,j)= 0. _d 0
259			sum_qrel(i,j)= 0. _d 0
260			sum_frel(i,j)= 0. _d 0
261			ENDDO
262			ENDDO
263
264			C Initialize following for safety and/or cold start
265			DO i=1-OLx,sNx+OLx
266			DO j=1-OLy,sNy+OLy
267			pass_runoff(i,j)= 0. _d 0
268			pass_qnet(i,j)= 0. _d 0
269			pass_evap(i,j)= 0. _d 0
270			pass_precip(i,j)= 0. _d 0
271			pass_fu(i,j)= 0. _d 0
272			pass_fv(i,j)= 0. _d 0
273			pass_wspeed(i,j)= 0. _d 0
274			pass_solarnet(i,j)= 0. _d 0
275			pass_slp(i,j)= 0. _d 0
276			pass_siceLoad(i,j)= 0. _d 0
277			pass_pCO2(i,j)= 0. _d 0
278			pass_prcAtm(i,j)= 0. _d 0
279			sFluxFromIce(i,j)= 0. _d 0
280			ENDDO
281			ENDDO
282
283			RETURN
284			END
285