1 |
C $Header: /u/gcmpack/MITgcm/pkg/fizhi/fizhi_init_veg.F,v 1.22 2005/05/04 22:15:17 molod Exp $ |
2 |
C $Name: $ |
3 |
|
4 |
#include "FIZHI_OPTIONS.h" |
5 |
|
6 |
subroutine fizhi_init_veg(mythid,vegdata,im,jm,Nsx,Nsy,Nxg,Nyg, |
7 |
. maxtyp,nchp,nchptot,nchpland,lons,lats,surftype,tilefrac, |
8 |
. igrd,ityp,chfr,chlt,chlon) |
9 |
C*********************************************************************** |
10 |
C Subroutine fizhi_init_veg - routine to read in the land surface types, |
11 |
C interpolate to the models grid, and set up tile space for use by |
12 |
C the land surface model, the albedo calculation and the surface |
13 |
C roughness calculation. |
14 |
C |
15 |
C INPUT: |
16 |
C |
17 |
C mythid - thread number (processor number) |
18 |
C vegdata - Character*40 Vegetation Dataset name |
19 |
C im - longitude dimension |
20 |
C jm - latitude dimension (number of lat. points) |
21 |
C Nsx - Number of processors in x-direction |
22 |
C Nsy - Number of processors in y-direction |
23 |
C maxtyp - maximum allowable number of land surface types per grid box |
24 |
C nchp - integer per-processor number of tiles in tile space |
25 |
C lons - longitude in degrees [im,jm,nSx,nSy] |
26 |
C lats - latitude in degrees [im,jm,nSx,nSy] |
27 |
C |
28 |
C OUTPUT: |
29 |
C |
30 |
C surftype - integer array of land surface types [im,jm,maxtyp,Nsx,Nsy] |
31 |
C tilefrac - real array of corresponding land surface type fractions |
32 |
C [im,jm,maxtyp,Nsx,Nsy] |
33 |
C igrd - integer array in tile space of grid point number for each |
34 |
C tile [nchp,Nsx,Nsy] |
35 |
C ityp - integer array in tile space of land surface type for each |
36 |
C tile [nchp,Nsx,Nsy] |
37 |
C chfr - real array in tile space of land surface type fraction for |
38 |
C each tile [nchp,Nsx,Nsy] |
39 |
C |
40 |
C NOTES: |
41 |
C Vegetation type as follows: |
42 |
C 1: BROADLEAF EVERGREEN TREES |
43 |
C 2: BROADLEAF DECIDUOUS TREES |
44 |
C 3: NEEDLELEAF TREES |
45 |
C 4: GROUND COVER |
46 |
C 5: BROADLEAF SHRUBS |
47 |
C 6: DWARF TREES (TUNDRA) |
48 |
C 7: BARE SOIL |
49 |
C 8: DESERT |
50 |
C 9: GLACIER |
51 |
C 10: DARK DESERT |
52 |
C 100: OCEAN |
53 |
C*********************************************************************** |
54 |
implicit none |
55 |
#include "EEPARAMS.h" |
56 |
|
57 |
integer mythid,im,jm,maxtyp,nchp,Nsx,Nsy,Nxg,Nyg |
58 |
integer nchptot(Nsx,Nsy), nchpland(Nsx,Nsy) |
59 |
integer surftype(im,jm,maxtyp,Nsx,Nsy) |
60 |
integer igrd(nchp,Nsx,Nsy),ityp(nchp,Nsx,Nsy) |
61 |
_RL tilefrac(im,jm,maxtyp,Nsx,Nsy) |
62 |
_RL lats(im,jm,nSx,nSy), lons(im,jm,nSx,nSy) |
63 |
_RL chfr(nchp,Nsx,Nsy),chlt(nchp,Nsx,Nsy),chlon(nchp,Nsx,Nsy) |
64 |
character*40 vegdata |
65 |
integer imdata,jmdata,Nxgdata,Nygdata |
66 |
integer biglobal,bjglobal |
67 |
|
68 |
integer*4 im_32, jm_32, Nxg_32, Nyg_32 |
69 |
integer*4 iveg_32(im,jm,maxtyp,Nxg,Nyg) |
70 |
real*4 veg_32(im,jm,maxtyp,Nxg,Nyg) |
71 |
|
72 |
integer i,j,k,bi,bj,ierr1,kveg |
73 |
|
74 |
call mdsfindunit( kveg, myThid ) |
75 |
close(kveg) |
76 |
open(kveg,file=vegdata,form='unformatted',access='sequential', |
77 |
. iostat=ierr1) |
78 |
if( ierr1.eq.0 ) then |
79 |
rewind(kveg) |
80 |
read(kveg)im_32,jm_32,Nxg_32,Nyg_32,IVEG_32,VEG_32 |
81 |
else |
82 |
print * |
83 |
print *, 'Veg Dataset: ',vegdata,' not found!' |
84 |
print * |
85 |
call exit(101) |
86 |
endif |
87 |
close(kveg) |
88 |
#if defined( _BYTESWAPIO ) && defined( ALLOW_MDSIO ) |
89 |
call MDS_BYTESWAPI4(1,im_32) |
90 |
call MDS_BYTESWAPI4(1,jm_32) |
91 |
call MDS_BYTESWAPI4(1,nxg_32) |
92 |
call MDS_BYTESWAPI4(1,nyg_32) |
93 |
#endif |
94 |
|
95 |
IF (myThid.eq.1) THEN |
96 |
imdata = im_32 |
97 |
jmdata = jm_32 |
98 |
Nxgdata = Nxg_32 |
99 |
Nygdata = Nyg_32 |
100 |
if( (imdata.ne.im) .or. (jmdata.ne.jm) .or. |
101 |
. (Nxgdata.ne.Nxg) .or. (Nygdata.ne.Nyg) ) then |
102 |
print * |
103 |
print *, 'Veg Data Resolution is Incorrect! ' |
104 |
print *,' Model Res: ',im,'x',jm,' Data Res: ',imdata,'x',jmdata |
105 |
print *,' Model Nxg Nyg: ',Nxg,' ',Nyg,' Data Nxg Nyg: ',Nxgdata, |
106 |
. ' ',Nygdata |
107 |
print * |
108 |
call exit(102) |
109 |
ENDIF |
110 |
ENDIF |
111 |
|
112 |
DO BJ = myByLo(myThid), myByHi(myThid) |
113 |
DO BI = myBxLo(myThid), myBxHi(myThid) |
114 |
|
115 |
biglobal=bi+(myXGlobalLo-1)/im |
116 |
bjglobal=bj+(myYGlobalLo-1)/jm |
117 |
#if defined( _BYTESWAPIO ) && defined( ALLOW_MDSIO ) |
118 |
call MDS_BYTESWAPR4(im*jm*maxtyp,veg_32(1,1,1,biglobal,bjglobal)) |
119 |
call MDS_BYTESWAPI4(im*jm*maxtyp,iveg_32(1,1,1,biglobal,bjglobal)) |
120 |
#endif |
121 |
do k = 1,maxtyp |
122 |
do j = 1,jm |
123 |
do i = 1,im |
124 |
surftype(i,j,k,bi,bj) = iveg_32(i,j,k,biglobal,bjglobal) |
125 |
tilefrac(i,j,k,bi,bj) = veg_32(i,j,k,biglobal,bjglobal) |
126 |
enddo |
127 |
enddo |
128 |
enddo |
129 |
|
130 |
ENDDO |
131 |
ENDDO |
132 |
|
133 |
c create chip arrays for : |
134 |
c igrd : grid index |
135 |
c ityp : veg. type |
136 |
c chfr : vegetation fraction |
137 |
c chlon: chip longitude |
138 |
c chlt : chip latitude |
139 |
|
140 |
c nchpland<=nchptot is the actual number of land chips |
141 |
|
142 |
DO BJ = myByLo(myThid), myByHi(myThid) |
143 |
DO BI = myBxLo(myThid), myBxHi(myThid) |
144 |
|
145 |
c land points |
146 |
c ----------- |
147 |
nchpland(bi,bj) = 0 |
148 |
do k=1,maxtyp |
149 |
do j=1,jm |
150 |
do i=1,im |
151 |
if(surftype(i,j,k,bi,bj).lt.100 .and. |
152 |
. tilefrac(i,j,k,bi,bj).gt.0.) then |
153 |
nchpland(bi,bj) = nchpland(bi,bj) + 1 |
154 |
igrd (nchpland(bi,bj),bi,bj) = i + (j-1)*im |
155 |
ityp (nchpland(bi,bj),bi,bj) = surftype(i,j,k,bi,bj) |
156 |
chfr (nchpland(bi,bj),bi,bj) = tilefrac(i,j,k,bi,bj) |
157 |
chlon(nchpland(bi,bj),bi,bj) = lons(i,j,bi,bj) |
158 |
chlt (nchpland(bi,bj),bi,bj) = lats(i,j,bi,bj) |
159 |
endif |
160 |
enddo |
161 |
enddo |
162 |
enddo |
163 |
|
164 |
c ocean points |
165 |
c ------------ |
166 |
nchptot(bi,bj) = nchpland(bi,bj) |
167 |
|
168 |
do k=1,maxtyp |
169 |
do j=1,jm |
170 |
do i=1,im |
171 |
if(surftype(i,j,k,bi,bj).ge.100 .and. |
172 |
. tilefrac(i,j,k,bi,bj).gt.0.) then |
173 |
nchptot(bi,bj) = nchptot(bi,bj) + 1 |
174 |
igrd (nchptot(bi,bj),bi,bj) = i + (j-1)*im |
175 |
ityp (nchptot(bi,bj),bi,bj) = surftype(i,j,k,bi,bj) |
176 |
chfr (nchptot(bi,bj),bi,bj) = tilefrac(i,j,k,bi,bj) |
177 |
chlon(nchptot(bi,bj),bi,bj) = lons(i,j,bi,bj) |
178 |
chlt (nchptot(bi,bj),bi,bj) = lats(i,j,bi,bj) |
179 |
endif |
180 |
enddo |
181 |
enddo |
182 |
enddo |
183 |
|
184 |
print *,'No of Total Tiles for bi=',bi,': ',nchptot(bi,bj) |
185 |
print *,'No of Land Tiles for bi=',bi,': ',nchpland(bi,bj) |
186 |
|
187 |
ENDDO |
188 |
ENDDO |
189 |
|
190 |
RETURN |
191 |
END |