36 |
I infile, |
I infile, |
37 |
I filePrec, |
I filePrec, |
38 |
O arrayout, |
O arrayout, |
39 |
I irecord, xG, yG, |
I irecord, xG_in, yG, |
40 |
I lon_0, lon_inc, |
I lon_0, lon_inc, |
41 |
I lat_0, lat_inc, |
I lat_0, lat_inc, |
42 |
I nx_in, ny_in, method, mythid) |
I nx_in, ny_in, method, mythid) |
52 |
C lon_inc = scalar x-grid increment |
C lon_inc = scalar x-grid increment |
53 |
C lat_inc = vector y-grid increments |
C lat_inc = vector y-grid increments |
54 |
C nx_in, ny_in = input x-grid and y-grid size |
C nx_in, ny_in = input x-grid and y-grid size |
55 |
C method = 1 for bilinear 2 for bicubic |
C method = 1,11,21 for bilinear; 2,12,22 for bicubic |
56 |
|
C 1,2 for tracer; 11,12 for U; 21,22 for V |
57 |
C mythid = thread id |
C mythid = thread id |
58 |
C |
C |
59 |
|
|
72 |
integer method, mythid |
integer method, mythid |
73 |
|
|
74 |
C local variables |
C local variables |
|
real*8 ne_fac,nw_fac,se_fac,sw_fac |
|
75 |
integer e_ind(snx,sny),w_ind(snx,sny) |
integer e_ind(snx,sny),w_ind(snx,sny) |
76 |
integer n_ind(snx,sny),s_ind(snx,sny) |
integer n_ind(snx,sny),s_ind(snx,sny) |
77 |
real*8 px_ind(4), py_ind(4), ew_val(4) |
real*8 px_ind(4), py_ind(4), ew_val(4) |
79 |
real*8 lagran |
real*8 lagran |
80 |
real*4 arrayin(-1:nx_in+2 , -1:ny_in+2) |
real*4 arrayin(-1:nx_in+2 , -1:ny_in+2) |
81 |
real*8 x_in (-1:nx_in+2), y_in(-1:ny_in+2) |
real*8 x_in (-1:nx_in+2), y_in(-1:ny_in+2) |
82 |
|
real*8 ninety |
83 |
|
PARAMETER ( ninety = 90. ) |
84 |
integer i, j, k, l, js, bi, bj, sp, interp_unit |
integer i, j, k, l, js, bi, bj, sp, interp_unit |
85 |
_RS xg(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
_RS xG(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
86 |
|
_RS threeSixtyRS, NorthValue |
87 |
|
PARAMETER ( threeSixtyRS = 360. ) |
88 |
|
|
89 |
! nomalize xg |
C put xG in interval [ lon_0 , lon_0+360 [ |
90 |
do bj=myByLo(myThid),myByHi(myThid) |
do bj=myByLo(myThid),myByHi(myThid) |
91 |
do bi=myBxLo(myThid),myBxHi(myThid) |
do bi=myBxLo(myThid),myBxHi(myThid) |
92 |
do j=1-OLy,sNy+OLy |
do j=1-OLy,sNy+OLy |
93 |
do i=1-OLx,sNx+OLx |
do i=1-OLx,sNx+OLx |
94 |
xg(i,j,bi,bj) = xg_in(i,j,bi,bj) |
xG(i,j,bi,bj) = xG_in(i,j,bi,bj)-lon_0 |
95 |
xg(i,j,bi,bj) = mod(xg(i,j,bi,bj),360.) |
& + threeSixtyRS*2. |
96 |
if ( xg(i,j,bi,bj) .lt. 0. ) |
xG(i,j,bi,bj) = lon_0+mod(xG(i,j,bi,bj),threeSixtyRS) |
|
& xg(i,j,bi,bj) = 360.+xg(i,j,bi,bj) |
|
97 |
enddo |
enddo |
98 |
enddo |
enddo |
99 |
enddo |
enddo |
100 |
enddo |
enddo |
101 |
|
|
102 |
call exf_interp_read( |
call exf_interp_read( |
103 |
I infile, |
I infile, filePrec, |
|
I filePrec, |
|
104 |
O arrayin, |
O arrayin, |
105 |
I irecord, xG, yG, |
I irecord, nx_in, ny_in, mythid) |
|
I lon_0, lon_inc, |
|
|
I lat_0, lat_inc, |
|
|
I nx_in, ny_in, method, mythid) |
|
106 |
_BARRIER |
_BARRIER |
107 |
|
|
108 |
C _BEGIN_MASTER( myThid ) |
C _BEGIN_MASTER( myThid ) |
109 |
|
|
110 |
C setup input grid |
C setup input longitude grid |
111 |
do i=-1,nx_in+2 |
do i=-1,nx_in+2 |
112 |
x_in(i) = lon_0 + (i-1.)*lon_inc |
x_in(i) = lon_0 + (i-1)*lon_inc |
113 |
x_in(i) = mod(x_in(i),360.) |
enddo |
|
if ( x_in(i) .lt. 0. ) |
|
|
& x_in(i) = 360.+x_in(i) |
|
|
enddo |
|
114 |
|
|
115 |
y_in(0) = lat_0 - lat_inc(1) |
C setup input latitude grid |
116 |
y_in(-1)= lat_0 - 2.*lat_inc(1) |
y_in(0) = lat_0 - lat_inc(1) |
117 |
y_in(1) = lat_0 |
y_in(-1)= lat_0 - 2.*lat_inc(1) |
118 |
do j=2,ny_in |
y_in(1) = lat_0 |
119 |
y_in(j) = y_in(j-1) + lat_inc(j-1) |
do j=2,ny_in |
120 |
enddo |
y_in(j) = y_in(j-1) + lat_inc(j-1) |
121 |
y_in(ny_in+1) = y_in(ny_in) + lat_inc(ny_in-1) |
enddo |
122 |
y_in(ny_in+2) = y_in(ny_in) + 2.*lat_inc(ny_in-1) |
do j=ny_in+1,ny_in+2 |
123 |
|
if (y_in(j-1).eq.ninety) then |
124 |
|
y_in(j) = 2 * ninety - y_in(j-2) |
125 |
|
else |
126 |
|
y_in(j) = min( y_in(j-1)+lat_inc(ny_in-1), ninety ) |
127 |
|
endif |
128 |
|
enddo |
129 |
|
|
130 |
C enlarge boundary |
C enlarge boundary |
131 |
do j=1,ny_in |
do j=1,ny_in |
132 |
arrayin(0,j) = arrayin(nx_in,j) |
arrayin(0,j) = arrayin(nx_in,j) |
133 |
arrayin(-1,j) = arrayin(nx_in-1,j) |
arrayin(-1,j) = arrayin(nx_in-1,j) |
134 |
arrayin(nx_in+1,j) = arrayin(1,j) |
arrayin(nx_in+1,j) = arrayin(1,j) |
135 |
arrayin(nx_in+2,j) = arrayin(2,j) |
arrayin(nx_in+2,j) = arrayin(2,j) |
136 |
enddo |
enddo |
137 |
do i=-1,nx_in+2 |
do i=-1,nx_in+2 |
138 |
arrayin(i,0) = arrayin(i,1) |
arrayin(i,0) = arrayin(i,1) |
139 |
arrayin(i,-1) = arrayin(i,1) |
arrayin(i,-1) = arrayin(i,1) |
140 |
arrayin(i,ny_in+1) = arrayin(i,ny_in) |
arrayin(i,ny_in+1) = arrayin(i,ny_in) |
141 |
arrayin(i,ny_in+2) = arrayin(i,ny_in) |
arrayin(i,ny_in+2) = arrayin(i,ny_in) |
142 |
enddo |
enddo |
143 |
|
|
144 |
C _END_MASTER( myThid ) |
C For tracer (method=1,2) set to northernmost zonal-mean value |
145 |
|
C at 90N to avoid sharp zonal gradients near the Pole. |
146 |
|
C For U (method=11,12) set to zero at 90N to minimize velocity |
147 |
|
C gradient at North Pole |
148 |
|
C For V (method=11,12) set to northernmost zonal value at 90N, |
149 |
|
C as is already done above in order to allow cross-PoleArctic flow |
150 |
|
do j=ny_in,ny_in+2 |
151 |
|
if (y_in(j).eq.ninety) then |
152 |
|
if (method.eq.1 .or. method.eq.2) then |
153 |
|
NorthValue = 0 |
154 |
|
do i=1,nx_in |
155 |
|
NorthValue = NorthValue + arrayin(i,j) |
156 |
|
enddo |
157 |
|
NorthValue = NorthValue / nx_in |
158 |
|
do i=-1,nx_in+2 |
159 |
|
arrayin(i,j) = NorthValue |
160 |
|
enddo |
161 |
|
elseif (method.eq.11 .or. method.eq.12) then |
162 |
|
do i=-1,nx_in+2 |
163 |
|
arrayin(i,j) = 0 |
164 |
|
enddo |
165 |
|
endif |
166 |
|
endif |
167 |
|
enddo |
168 |
|
|
169 |
|
C _END_MASTER( myThid ) |
170 |
|
|
171 |
do bj = mybylo(mythid), mybyhi(mythid) |
do bj = mybylo(mythid), mybyhi(mythid) |
172 |
do bi = mybxlo(mythid), mybxhi(mythid) |
do bi = mybxlo(mythid), mybxhi(mythid) |
173 |
|
|
215 |
enddo |
enddo |
216 |
enddo |
enddo |
217 |
|
|
218 |
if (method .eq. 1) then |
if (method.eq.1 .or. method.eq.11 .or. method.eq.21) then |
219 |
|
|
220 |
C bilinear interpolation |
C bilinear interpolation |
221 |
sp = 2 |
sp = 2 |
236 |
enddo |
enddo |
237 |
enddo |
enddo |
238 |
enddo |
enddo |
239 |
elseif (method .eq. 2) then |
elseif (method .eq. 2 .or. method.eq.12 .or. method.eq.22) then |
240 |
|
|
241 |
C bicubic interpolation |
C bicubic interpolation |
242 |
sp = 4 |
sp = 4 |