source: LMDZ4/trunk/libf/cosp/prec_scops.F @ 1543

Last change on this file since 1543 was 1279, checked in by Laurent Fairhead, 15 years ago

Merged LMDZ4-dev branch changes r1241:1278 into the trunk
Running trunk and LMDZ4-dev in LMDZOR configuration on local
machine (sequential) and SX8 (4-proc) yields identical results
(restart and restartphy are identical binarily)
Log history from r1241 to r1278 is available by switching to
source:LMDZ4/branches/LMDZ4-dev-20091210

File size: 8.2 KB
Line 
1! (c) 2008, Lawrence Livermore National Security Limited Liability Corporation.
2! All rights reserved.
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5! provided that the following conditions are met:
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14!       this software without specific prior written permission.
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23! OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24     
25      subroutine prec_scops(npoints,nlev,ncol,ls_p_rate,cv_p_rate,
26     &                      frac_out,prec_frac)
27
28
29      implicit none
30
31      INTEGER npoints       !  number of model points in the horizontal
32      INTEGER nlev          !  number of model levels in column
33      INTEGER ncol          !  number of subcolumns
34
35      INTEGER i,j,ilev,ibox,cv_col
36     
37      REAL ls_p_rate(npoints,nlev),cv_p_rate(npoints,nlev)
38
39      REAL frac_out(npoints,ncol,nlev) ! boxes gridbox divided up into
40                              ! Equivalent of BOX in original version, but
41                              ! indexed by column then row, rather than
42                              ! by row then column
43                              !TOA to SURFACE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
44      REAL prec_frac(npoints,ncol,nlev) ! 0 -> clear sky
45                                        ! 1 -> LS precipitation
46                                        ! 2 -> CONV precipitation
47                                        ! 3 -> both
48                                        !TOA to SURFACE!!!!!!!!!!!!!!!!!!
49                                       
50      INTEGER flag_ls, flag_cv
51      INTEGER frac_out_ls(npoints,ncol),frac_out_cv(npoints,ncol) !flag variables for
52                       ! stratiform cloud and convective cloud in the vertical column
53
54      cv_col = 0.05*ncol
55      if (cv_col .eq. 0) cv_col=1
56 
57      do ilev=1,nlev
58      do ibox=1,ncol
59        do j=1,npoints
60        prec_frac(j,ibox,ilev) = 0
61        enddo
62      enddo
63      enddo
64     
65      do j=1,npoints
66       do ibox=1,ncol
67       frac_out_ls(j,ibox)=0
68       frac_out_cv(j,ibox)=0
69       flag_ls=0
70       flag_cv=0
71        do ilev=1,nlev
72         if (frac_out(j,ibox,ilev) .eq. 1) then
73          flag_ls=1
74         endif
75         if (frac_out(j,ibox,ilev) .eq. 2) then
76          flag_cv=1
77         endif
78        enddo !loop over nlev
79        if (flag_ls .eq. 1) then
80         frac_out_ls(j,ibox)=1
81        endif
82        if (flag_cv .eq. 1) then
83         frac_out_cv(j,ibox)=1
84        endif
85       enddo  ! loop over ncol
86      enddo ! loop over npoints
87
88!      initialize the top layer     
89       do j=1,npoints
90        flag_ls=0
91        flag_cv=0
92       
93        if (ls_p_rate(j,1) .gt. 0.) then
94         do ibox=1,ncol ! possibility ONE
95          if (frac_out(j,ibox,1) .eq. 1) then
96           prec_frac(j,ibox,1) = 1
97           flag_ls=1
98          endif
99         enddo ! loop over ncol
100         if (flag_ls .eq. 0) then ! possibility THREE
101          do ibox=1,ncol
102           if (frac_out(j,ibox,2) .eq. 1) then
103            prec_frac(j,ibox,1) = 1
104            flag_ls=1
105           endif
106          enddo ! loop over ncol
107         endif
108         if (flag_ls .eq. 0) then ! possibility Four
109          do ibox=1,ncol
110           if (frac_out_ls(j,ibox) .eq. 1) then
111            prec_frac(j,ibox,1) = 1
112            flag_ls=1
113           endif
114          enddo ! loop over ncol
115         endif
116         if (flag_ls .eq. 0) then ! possibility Five
117          do ibox=1,ncol
118!         prec_frac(j,1:ncol,1) = 1
119          prec_frac(j,ibox,1) = 1
120          enddo ! loop over ncol
121         endif
122        endif
123       ! There is large scale precipitation
124         
125        if (cv_p_rate(j,1) .gt. 0.) then
126         do ibox=1,ncol ! possibility ONE
127          if (frac_out(j,ibox,1) .eq. 2) then
128           if (prec_frac(j,ibox,1) .eq. 0) then
129            prec_frac(j,ibox,1) = 2
130           else
131            prec_frac(j,ibox,1) = 3
132           endif
133           flag_cv=1
134          endif
135         enddo ! loop over ncol
136         if (flag_cv .eq. 0) then ! possibility THREE
137          do ibox=1,ncol
138           if (frac_out(j,ibox,2) .eq. 2) then
139            if (prec_frac(j,ibox,1) .eq. 0) then
140             prec_frac(j,ibox,1) = 2
141            else
142             prec_frac(j,ibox,1) = 3
143            endif
144            flag_cv=1
145           endif
146          enddo ! loop over ncol
147         endif
148         if (flag_cv .eq. 0) then ! possibility Four
149          do ibox=1,ncol
150           if (frac_out_cv(j,ibox) .eq. 1) then
151            if (prec_frac(j,ibox,1) .eq. 0) then
152             prec_frac(j,ibox,1) = 2
153            else
154             prec_frac(j,ibox,1) = 3
155            endif
156            flag_cv=1
157           endif
158          enddo ! loop over ncol
159         endif
160         if (flag_cv .eq. 0) then  ! possibility Five
161          do ibox=1,cv_col
162            if (prec_frac(j,ibox,1) .eq. 0) then
163             prec_frac(j,ibox,1) = 2
164            else
165             prec_frac(j,ibox,1) = 3
166            endif
167          enddo !loop over cv_col
168         endif
169        endif
170       ! There is convective precipitation
171       
172       enddo ! loop over npoints
173!      end of initializing the top layer
174
175!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
176
177!     working on the levels from top to surface
178      do ilev=2,nlev
179       do j=1,npoints
180        flag_ls=0
181        flag_cv=0
182       
183        if (ls_p_rate(j,ilev) .gt. 0.) then
184         do ibox=1,ncol ! possibility ONE&TWO
185          if ((frac_out(j,ibox,ilev) .eq. 1) .or.
186     &       ((prec_frac(j,ibox,ilev-1) .eq. 1)
187     &       .or. (prec_frac(j,ibox,ilev-1) .eq. 3))) then
188           prec_frac(j,ibox,ilev) = 1
189           flag_ls=1
190          endif
191         enddo ! loop over ncol
192         if ((flag_ls .eq. 0) .and. (ilev .lt. nlev)) then ! possibility THREE
193          do ibox=1,ncol
194           if (frac_out(j,ibox,ilev+1) .eq. 1) then
195            prec_frac(j,ibox,ilev) = 1
196            flag_ls=1
197           endif
198          enddo ! loop over ncol
199         endif
200         if (flag_ls .eq. 0) then ! possibility Four
201          do ibox=1,ncol
202           if (frac_out_ls(j,ibox) .eq. 1) then
203            prec_frac(j,ibox,ilev) = 1
204            flag_ls=1
205           endif
206          enddo ! loop over ncol
207         endif
208         if (flag_ls .eq. 0) then ! possibility Five
209          do ibox=1,ncol
210!         prec_frac(j,1:ncol,ilev) = 1
211          prec_frac(j,ibox,ilev) = 1
212          enddo ! loop over ncol
213         endif
214        endif ! There is large scale precipitation
215       
216        if (cv_p_rate(j,ilev) .gt. 0.) then
217         do ibox=1,ncol ! possibility ONE&TWO
218          if ((frac_out(j,ibox,ilev) .eq. 2) .or.
219     &       ((prec_frac(j,ibox,ilev-1) .eq. 2)
220     &       .or. (prec_frac(j,ibox,ilev-1) .eq. 3))) then
221            if (prec_frac(j,ibox,ilev) .eq. 0) then
222             prec_frac(j,ibox,ilev) = 2
223            else
224             prec_frac(j,ibox,ilev) = 3
225            endif
226           flag_cv=1
227          endif
228         enddo ! loop over ncol
229         if ((flag_cv .eq. 0) .and. (ilev .lt. nlev)) then ! possibility THREE
230          do ibox=1,ncol
231           if (frac_out(j,ibox,ilev+1) .eq. 2) then
232            if (prec_frac(j,ibox,ilev) .eq. 0) then
233             prec_frac(j,ibox,ilev) = 2
234            else
235             prec_frac(j,ibox,ilev) = 3
236            endif
237            flag_cv=1
238           endif
239          enddo ! loop over ncol
240         endif
241         if (flag_cv .eq. 0) then ! possibility Four
242          do ibox=1,ncol
243           if (frac_out_cv(j,ibox) .eq. 1) then
244            if (prec_frac(j,ibox,ilev) .eq. 0) then
245             prec_frac(j,ibox,ilev) = 2
246            else
247             prec_frac(j,ibox,ilev) = 3
248            endif
249            flag_cv=1
250           endif
251          enddo ! loop over ncol
252         endif
253         if (flag_cv .eq. 0) then  ! possibility Five
254          do ibox=1,cv_col
255            if (prec_frac(j,ibox,ilev) .eq. 0) then
256             prec_frac(j,ibox,ilev) = 2
257            else
258             prec_frac(j,ibox,ilev) = 3
259            endif
260          enddo !loop over cv_col
261         endif
262        endif ! There is convective precipitation
263
264       enddo ! loop over npoints
265      enddo ! loop over nlev
266
267      end
268
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