/*------------------------------------------------------------------------------
void conserve_interp()
conservative interpolation through exchange grid.
Currently only first order interpolation are implemented here.
----------------------------------------------------------------------------*/
void conserve_interp(int nx_src, int ny_src, int nx_dst, int ny_dst, const double *x_src,
const double *y_src, const double *x_dst, const double *y_dst,
const double *mask_src, const double *data_src, double *data_dst )
{
int n, nxgrid;
int *xgrid_i1, *xgrid_j1, *xgrid_i2, *xgrid_j2;
double *xgrid_area, *dst_area, *area_frac;
/* get the exchange grid between source and destination grid. */
xgrid_i1 = (int *)malloc(MAXXGRID*sizeof(int));
xgrid_j1 = (int *)malloc(MAXXGRID*sizeof(int));
xgrid_i2 = (int *)malloc(MAXXGRID*sizeof(int));
xgrid_j2 = (int *)malloc(MAXXGRID*sizeof(int));
xgrid_area = (double *)malloc(MAXXGRID*sizeof(double));
dst_area = (double *)malloc(nx_dst*ny_dst*sizeof(double));
nxgrid = create_xgrid_2dx2d_order1(&nx_src, &ny_src, &nx_dst, &ny_dst, x_src, y_src, x_dst, y_dst, mask_src,
xgrid_i1, xgrid_j1, xgrid_i2, xgrid_j2, xgrid_area );
get_grid_area(&nx_dst, &ny_dst, x_dst, y_dst, dst_area);
area_frac = (double *)malloc(nxgrid*sizeof(double));
for(n=0; n<nxgrid; n++) area_frac[n] = xgrid_area[n]/dst_area[xgrid_j2[n]*nx_dst+xgrid_i2[n]];
for(n=0; n<nx_dst*ny_dst; n++) {
data_dst[n] = 0;
}
for(n=0; n<nxgrid; n++) {
data_dst[xgrid_j2[n]*nx_dst+xgrid_i2[n]] += data_src[xgrid_j1[n]*nx_src+xgrid_i1[n]]*area_frac[n];
}
free(xgrid_i1);
free(xgrid_j1);
free(xgrid_i2);
free(xgrid_j2);
free(xgrid_area);
free(dst_area);
free(area_frac);
}; /* conserve_interp */
/*******************************************************************************
void do_scalar_conserve_interp( )
doing conservative interpolation
*******************************************************************************/
void do_scalar_conserve_interp(Interp_config *interp, int varid, int ntiles_in, const Grid_config *grid_in,
int ntiles_out, const Grid_config *grid_out, const Field_config *field_in,
Field_config *field_out, unsigned int opcode)
{
int nx1, ny1, nx2, ny2, i1, j1, i2, j2, tile, n, m, i, j, n1, n2;
int has_missing, halo, interp_method;
double area, missing, di, dj;
double *out_area;
interp_method = field_in->var[varid].interp_method;
halo = 0;
if(interp_method == CONSERVE_ORDER2) halo = 1;
missing = field_in->var[varid].missing;
has_missing = field_in->var[varid].has_missing;
for(m=0; m<ntiles_out; m++) {
nx2 = grid_out[m].nxc;
ny2 = grid_out[m].nyc;
out_area = (double *)malloc(nx2*ny2*sizeof(double));
for(i=0; i<nx2*ny2; i++) field_out[m].data[i] = 0.0;
for(i=0; i<nx2*ny2; i++) out_area[i] = 0.0;
if(interp_method == CONSERVE_ORDER1) {
if(has_missing) {
for(n=0; n<interp[m].nxgrid; n++) {
i2 = interp[m].i_out[n];
j2 = interp[m].j_out[n];
i1 = interp[m].i_in [n];
j1 = interp[m].j_in [n];
tile = interp[m].t_in [n];
area = interp[m].area [n];
nx1 = grid_in[tile].nx;
ny1 = grid_in[tile].ny;
if( field_in[tile].data[j1*nx1+i1] != missing ) {
field_out[m].data[j2*nx2+i2] += field_in[tile].data[j1*nx1+i1]*area;
out_area[j2*nx2+i2] += area;
}
}
}
else {
for(n=0; n<interp[m].nxgrid; n++) {
i2 = interp[m].i_out[n];
j2 = interp[m].j_out[n];
i1 = interp[m].i_in [n];
j1 = interp[m].j_in [n];
tile = interp[m].t_in [n];
area = interp[m].area [n];
nx1 = grid_in[tile].nx;
ny1 = grid_in[tile].ny;
field_out[m].data[j2*nx2+i2] += field_in[tile].data[j1*nx1+i1]*area;
out_area[j2*nx2+i2] += area;
}
}
}
else {
if(has_missing) {
for(n=0; n<interp[m].nxgrid; n++) {
i2 = interp[m].i_out[n];
j2 = interp[m].j_out[n];
i1 = interp[m].i_in [n];
j1 = interp[m].j_in [n];
di = interp[m].di_in[n];
dj = interp[m].dj_in[n];
tile = interp[m].t_in [n];
area = interp[m].area [n];
nx1 = grid_in[tile].nx;
ny1 = grid_in[tile].ny;
n2 = (j1+1)*(nx1+2)+i1+1;
if( field_in[tile].data[n2] != missing ) {
n1 = j1*nx1+i1;
if(field_in[tile].grad_mask[n1]) { /* use zero gradient */
field_out[m].data[j2*nx2+i2] += field_in[tile].data[n2]*area;
}
else {
field_out[m].data[j2*nx2+i2] += (field_in[tile].data[n2]+field_in[tile].grad_x[n1]*di
+field_in[tile].grad_y[n1]*dj)*area;
}
out_area[j2*nx2+i2] += area;
}
}
}
else {
for(n=0; n<interp[m].nxgrid; n++) {
i2 = interp[m].i_out[n];
j2 = interp[m].j_out[n];
i1 = interp[m].i_in [n];
j1 = interp[m].j_in [n];
di = interp[m].di_in[n];
dj = interp[m].dj_in[n];
tile = interp[m].t_in [n];
area = interp[m].area [n];
nx1 = grid_in[tile].nx;
ny1 = grid_in[tile].ny;
n1 = j1*nx1+i1;
n2 = (j1+1)*(nx1+2)+i1+1;
field_out[m].data[j2*nx2+i2] += (field_in[tile].data[n2]+field_in[tile].grad_x[n1]*di
+field_in[tile].grad_y[n1]*dj)*area;
out_area[j2*nx2+i2] += area;
}
}
}
if(opcode & TARGET) {
for(i=0; i<nx2*ny2; i++) {
if(out_area[i] > 0)
field_out[m].data[i] /= grid_out[m].area[i];
else
field_out[m].data[i] = missing;
}
}
else {
for(i=0; i<nx2*ny2; i++) {
if(out_area[i] > 0)
field_out[m].data[i] /= out_area[i];
else
field_out[m].data[i] = missing;
}
}
}
free(out_area);
/* conservation check if needed */
if(opcode & CHECK_CONSERVE) {
double gsum_in, gsum_out, dd;
double *area;
gsum_in = 0;
gsum_out = 0;
for(n=0; n<ntiles_in; n++) {
nx1 = grid_in[n].nx;
ny1 = grid_in[n].ny;
area = (double *)malloc(nx1*ny1*sizeof(double));
get_grid_area(&nx1, &ny1, grid_in[n].lonc, grid_in[n].latc, area);
for(j=0; j<ny1; j++) for(i=0; i<nx1; i++) {
dd = field_in[n].data[(j+halo)*(nx1+2*halo)+i+halo];
if(dd != missing) gsum_in += dd*area[j*nx1+i];
}
free(area);
}
for(n=0; n<ntiles_out; n++) {
nx2 = grid_out[n].nxc;
ny2 = grid_out[n].nyc;
area = (double *)malloc(nx2*ny2*sizeof(double));
get_grid_area(&nx2, &ny2, grid_out[n].lonc, grid_out[n].latc, area);
for(j=0; j<ny2; j++) for(i=0; i<nx2; i++) {
dd = field_out[n].data[j*nx2+i];
if(dd != missing) gsum_out += dd*area[j*nx2+i];
}
free(area);
}
mpp_sum_double(1, &gsum_out);
if(mpp_pe() == mpp_root_pe()) printf("the flux(data*area) sum of %s: input = %g, output = %g, diff = %g. \n",
field_in->var[varid].name, gsum_in, gsum_out, gsum_out-gsum_in);
}
}; /* do_scalar_conserve_interp */
int main (int argc, char *argv[])
{
int c, n, i;
int errflg = (argc == 1);
int option_index = 0;
int fid, vid, nfile_aXl, ntiles;
int *nx, *ny;
double **lonb, **latb, **land_area, **ocean_area, **cell_area;
char **axl_file = NULL, **axo_file=NULL, **lxo_file=NULL;
char **ocn_topog_file = NULL;
char *input_mosaic = NULL;
char mosaic_name[STRING] = "mosaic", mosaic_file[STRING];
char griddir[STRING], lnd_mosaic[STRING], filepath[STRING];
char history[512];
static struct option long_options[] = {
{"input_mosaic", required_argument, NULL, 'i'},
{"mosaic_name", required_argument, NULL, 'm'},
{NULL, 0, NULL, 0}
};
/*
* process command line
*/
while ((c = getopt_long(argc, argv, "i:", long_options, &option_index) ) != -1)
switch (c) {
case 'i':
input_mosaic = optarg;
break;
case 'm':
strcpy(mosaic_name,optarg);
break;
case '?':
errflg++;
}
if (errflg || !input_mosaic) {
char **u = usage;
while (*u) { fprintf(stderr, "%s\n", *u); u++; }
exit(2);
}
strcpy(history,argv[0]);
for(i=1;i<argc;i++) {
strcat(history, " ");
strcat(history, argv[i]);
}
/* First get land grid information */
mpp_init(&argc, &argv);
sprintf(mosaic_file, "%s.nc", mosaic_name);
get_file_path(input_mosaic, griddir);
fid = mpp_open(input_mosaic, MPP_READ);
vid = mpp_get_varid(fid, "lnd_mosaic_file");
mpp_get_var_value(fid, vid, lnd_mosaic);
nfile_aXl = mpp_get_dimlen( fid, "nfile_aXl");
/*make sure the directory that stores the mosaic_file is not current directory */
{
char cur_path[STRING];
if(getcwd(cur_path, STRING) != cur_path ) mpp_error("make_quick_mosaic: The size of cur_path maybe is not big enough");
printf("The current directory is %s\n", cur_path);
printf("The mosaic file location is %s\n", griddir);
if(strcmp(griddir, cur_path)==0 || strcmp( griddir, ".")==0)
mpp_error("make_quick_mosaic: The input mosaic file location should not be current directory");
}
sprintf(filepath, "%s/%s", griddir, lnd_mosaic);
ntiles = read_mosaic_ntiles(filepath);
/* copy the lnd_mosaic file and grid file */
{
int fid2, vid2;
char cmd[STRING], gridfile[STRING];
size_t start[4], nread[4];
sprintf(cmd, "cp %s %s", filepath, lnd_mosaic);
system(cmd);
fid2 = mpp_open(filepath, MPP_READ);
vid2 = mpp_get_varid(fid2, "gridfiles");
for(i=0; i<4; i++) {
start[i] = 0; nread[i] = 1;
}
for(n=0; n<ntiles; n++) {
start[0] = n; nread[1] = STRING;
mpp_get_var_value_block(fid2, vid2, start, nread, gridfile);
sprintf(cmd, "cp %s/%s %s", griddir, gridfile, gridfile);
printf("%s \n", cmd);
system(cmd);
}
mpp_close(fid2);
}
/* ntiles should be either 1 or ntiles = nfile_aXl */
if(ntiles != nfile_aXl && ntiles != 1)
mpp_error("make_quick_mosaic: only support ntiles = 1 or ntiles = nfile_aXl, contact developer");
nx = (int *)malloc(ntiles*sizeof(int));
ny = (int *)malloc(ntiles*sizeof(int));
read_mosaic_grid_sizes(filepath, nx, ny);
lonb = (double **)malloc(ntiles*sizeof(double *));
latb = (double **)malloc(ntiles*sizeof(double *));
for(n=0; n<ntiles; n++) {
lonb[n] = (double *)malloc((nx[n]+1)*(ny[n]+1)*sizeof(double));
latb[n] = (double *)malloc((nx[n]+1)*(ny[n]+1)*sizeof(double));
read_mosaic_grid_data(filepath, "x", nx[n], ny[n], lonb[n], n, 0, 0);
read_mosaic_grid_data(filepath, "y", nx[n], ny[n], latb[n], n, 0, 0);
for(i=0; i<(nx[n]+1)*(ny[n]+1); i++) {
lonb[n][i] *= (M_PI/180.0);
latb[n][i] *= (M_PI/180.0);
}
}
/* read the exchange grid information and get the land/sea mask of land model*/
land_area = (double **)malloc(ntiles*sizeof(double *));
for(n=0; n<ntiles; n++) {
land_area[n] = (double *)malloc(nx[n]*ny[n]*sizeof(double));
for(i=0; i<nx[n]*ny[n]; i++) land_area[n][i] = 0;
}
vid = mpp_get_varid(fid, "aXl_file");
for(n=0; n<nfile_aXl; n++) {
size_t start[4], nread[4];
int nxgrid;
char aXl_file[STRING];
start[0] = n;
start[1] = 0;
nread[0] = 1;
nread[1] = STRING;
mpp_get_var_value_block(fid, vid, start, nread, aXl_file);
sprintf(filepath, "%s/%s", griddir, aXl_file);
nxgrid = read_mosaic_xgrid_size(filepath);
if(nxgrid>0) {
int l;
int *i1, *j1, *i2, *j2;
double *area;
i1 = (int *)malloc(nxgrid*sizeof(int));
j1 = (int *)malloc(nxgrid*sizeof(int));
i2 = (int *)malloc(nxgrid*sizeof(int));
j2 = (int *)malloc(nxgrid*sizeof(int));
area = (double *)malloc(nxgrid*sizeof(double));
read_mosaic_xgrid_order1(filepath, i1, j1, i2, j2, area);
if(ntiles == 1) {
for(l=0; l<nxgrid; l++) land_area[0][j2[l]*nx[0]+i2[l]] += (area[l]*4*M_PI*RADIUS*RADIUS);
}
else {
for(l=0; l<nxgrid; l++) land_area[n][j2[l]*nx[n]+i2[l]] += (area[l]*4*M_PI*RADIUS*RADIUS);
}
free(i1);
free(j1);
free(i2);
free(j2);
free(area);
}
}
mpp_close(fid);
/* calculate ocean area */
ocean_area = (double **)malloc(ntiles*sizeof(double *));
cell_area = (double **)malloc(ntiles*sizeof(double *));
for(n=0; n<ntiles; n++) {
ocean_area[n] = (double *)malloc(nx[n]*ny[n]*sizeof(double));
cell_area[n] = (double *)malloc(nx[n]*ny[n]*sizeof(double));
get_grid_area(&nx[n], &ny[n], lonb[n], latb[n], cell_area[n]);
for(i=0; i<nx[n]*ny[n]; i++) {
ocean_area[n][i] = cell_area[n][i];
if( fabs(ocean_area[n][i]-land_area[n][i])/ocean_area[n][i] < AREA_RATIO_THRESH )
ocean_area[n][i] = 0;
else
ocean_area[n][i] -= land_area[n][i];
if(ocean_area[n][i] < 0) {
printf("at i = %d, ocean_area = %g, land_area = %g, cell_area=%g\n", i, ocean_area[n][i], land_area[n][i], cell_area[n][i]);
mpp_error("make_quick_mosaic: ocean area is negative at some points");
}
}
}
/* write out land mask */
{
for(n=0; n<ntiles; n++) {
int fid, id_mask, dims[2];
char lnd_mask_file[STRING];
double *mask;
mask = (double *)malloc(nx[n]*ny[n]*sizeof(double));
for(i=0; i<nx[n]*ny[n]; i++) mask[i] = land_area[n][i]/cell_area[n][i];
if(ntiles > 1)
sprintf(lnd_mask_file, "land_mask_tile%d.nc", n+1);
else
strcpy(lnd_mask_file, "land_mask.nc");
fid = mpp_open(lnd_mask_file, MPP_WRITE);
mpp_def_global_att(fid, "grid_version", grid_version);
mpp_def_global_att(fid, "code_version", tagname);
mpp_def_global_att(fid, "history", history);
dims[1] = mpp_def_dim(fid, "nx", nx[n]);
dims[0] = mpp_def_dim(fid, "ny", ny[n]);
id_mask = mpp_def_var(fid, "mask", MPP_DOUBLE, 2, dims, 2, "standard_name",
"land fraction at T-cell centers", "units", "none");
mpp_end_def(fid);
mpp_put_var_value(fid, id_mask, mask);
free(mask);
mpp_close(fid);
}
}
/* write out ocean mask */
{
for(n=0; n<ntiles; n++) {
int fid, id_mask, dims[2];
char ocn_mask_file[STRING];
double *mask;
mask = (double *)malloc(nx[n]*ny[n]*sizeof(double));
for(i=0; i<nx[n]*ny[n]; i++) mask[i] = ocean_area[n][i]/cell_area[n][i];
if(ntiles > 1)
sprintf(ocn_mask_file, "ocean_mask_tile%d.nc", n+1);
else
strcpy(ocn_mask_file, "ocean_mask.nc");
fid = mpp_open(ocn_mask_file, MPP_WRITE);
mpp_def_global_att(fid, "grid_version", grid_version);
mpp_def_global_att(fid, "code_version", tagname);
mpp_def_global_att(fid, "history", history);
dims[1] = mpp_def_dim(fid, "nx", nx[n]);
dims[0] = mpp_def_dim(fid, "ny", ny[n]);
id_mask = mpp_def_var(fid, "mask", MPP_DOUBLE, 2, dims, 2, "standard_name",
"ocean fraction at T-cell centers", "units", "none");
mpp_end_def(fid);
mpp_put_var_value(fid, id_mask, mask);
free(mask);
mpp_close(fid);
}
}
ocn_topog_file = (char **)malloc(ntiles*sizeof(char *));
axl_file = (char **)malloc(ntiles*sizeof(char *));
axo_file = (char **)malloc(ntiles*sizeof(char *));
lxo_file = (char **)malloc(ntiles*sizeof(char *));
for(n=0; n<ntiles; n++) {
axl_file[n] = (char *)malloc(STRING*sizeof(char));
axo_file[n] = (char *)malloc(STRING*sizeof(char));
lxo_file[n] = (char *)malloc(STRING*sizeof(char));
ocn_topog_file[n] = (char *)malloc(STRING*sizeof(char));
sprintf(ocn_topog_file[n], "ocean_topog_tile%d.nc", n+1);
sprintf(axl_file[n], "atmos_mosaic_tile%dXland_mosaic_tile%d.nc", n+1, n+1);
sprintf(axo_file[n], "atmos_mosaic_tile%dXocean_mosaic_tile%d.nc", n+1, n+1);
sprintf(lxo_file[n], "land_mosaic_tile%dXocean_mosaic_tile%d.nc", n+1, n+1);
}
for(n=0; n<ntiles; n++) {
int *i1, *j1, *i2, *j2;
double *area, *di, *dj;
int nxgrid, i, j;
int fid, dim_string, dim_ncells, dim_two, dims[2];
int id_contact, id_tile1_cell, id_tile2_cell;
int id_xgrid_area, id_tile1_dist, id_tile2_dist;
size_t start[4], nwrite[4];
char contact[STRING];
for(i=0; i<4; i++) {
start[i] = 0; nwrite[i] = 1;
}
/* first calculate the atmXlnd exchange grid */
i1 = (int *)malloc(nx[n]*ny[n]*sizeof(int));
j1 = (int *)malloc(nx[n]*ny[n]*sizeof(int));
i2 = (int *)malloc(nx[n]*ny[n]*sizeof(int));
j2 = (int *)malloc(nx[n]*ny[n]*sizeof(int));
area = (double *)malloc(nx[n]*ny[n]*sizeof(double));
di = (double *)malloc(nx[n]*ny[n]*sizeof(double));
dj = (double *)malloc(nx[n]*ny[n]*sizeof(double));
/* write out the atmosXland exchange grid file, The file name will be atmos_mosaic_tile#Xland_mosaic_tile#.nc */
nxgrid = 0;
for(j=0; j<ny[n]; j++) for(i=0; i<nx[n]; i++) {
if(land_area[n][j*nx[n]+i] >0) {
i1[nxgrid] = i+1;
j1[nxgrid] = j+1;
i2[nxgrid] = i+1;
j2[nxgrid] = j+1;
area[nxgrid] = land_area[n][j*nx[n]+i];
di[nxgrid] = 0;
dj[nxgrid] = 0;
nxgrid++;
}
}
fid = mpp_open(axl_file[n], MPP_WRITE);
sprintf(contact, "atmos_mosaic:tile%d::land_mosaic:tile%d", n+1, n+1);
mpp_def_global_att(fid, "grid_version", grid_version);
mpp_def_global_att(fid, "code_version", tagname);
mpp_def_global_att(fid, "history", history);
dim_string = mpp_def_dim(fid, "string", STRING);
dim_ncells = mpp_def_dim(fid, "ncells", nxgrid);
dim_two = mpp_def_dim(fid, "two", 2);
id_contact = mpp_def_var(fid, "contact", MPP_CHAR, 1, &dim_string, 7, "standard_name", "grid_contact_spec",
"contact_type", "exchange", "parent1_cell",
"tile1_cell", "parent2_cell", "tile2_cell", "xgrid_area_field", "xgrid_area",
"distant_to_parent1_centroid", "tile1_distance", "distant_to_parent2_centroid", "tile2_distance");
dims[0] = dim_ncells; dims[1] = dim_two;
id_tile1_cell = mpp_def_var(fid, "tile1_cell", MPP_INT, 2, dims, 1, "standard_name", "parent_cell_indices_in_mosaic1");
id_tile2_cell = mpp_def_var(fid, "tile2_cell", MPP_INT, 2, dims, 1, "standard_name", "parent_cell_indices_in_mosaic2");
id_xgrid_area = mpp_def_var(fid, "xgrid_area", MPP_DOUBLE, 1, &dim_ncells, 2, "standard_name",
"exchange_grid_area", "units", "m2");
id_tile1_dist = mpp_def_var(fid, "tile1_distance", MPP_DOUBLE, 2, dims, 1, "standard_name", "distance_from_parent1_cell_centroid");
id_tile2_dist = mpp_def_var(fid, "tile2_distance", MPP_DOUBLE, 2, dims, 1, "standard_name", "distance_from_parent2_cell_centroid");
mpp_end_def(fid);
nwrite[0] = strlen(contact);
mpp_put_var_value_block(fid, id_contact, start, nwrite, contact);
nwrite[0] = nxgrid;
mpp_put_var_value(fid, id_xgrid_area, area);
mpp_put_var_value_block(fid, id_tile1_cell, start, nwrite, i1);
mpp_put_var_value_block(fid, id_tile2_cell, start, nwrite, i2);
mpp_put_var_value_block(fid, id_tile1_dist, start, nwrite, di);
mpp_put_var_value_block(fid, id_tile2_dist, start, nwrite, di);
start[1] = 1;
mpp_put_var_value_block(fid, id_tile1_cell, start, nwrite, j1);
mpp_put_var_value_block(fid, id_tile2_cell, start, nwrite, j2);
mpp_put_var_value_block(fid, id_tile1_dist, start, nwrite, dj);
mpp_put_var_value_block(fid, id_tile2_dist, start, nwrite, dj);
mpp_close(fid);
/* write out the atmosXocean exchange grid file, The file name will be atmos_mosaic_tile#Xocean_mosaic_tile#.nc */
nxgrid = 0;
for(j=0; j<ny[n]; j++) for(i=0; i<nx[n]; i++) {
if(ocean_area[n][j*nx[n]+i] >0) {
i1[nxgrid] = i+1;
j1[nxgrid] = j+1;
i2[nxgrid] = i+1;
j2[nxgrid] = j+1;
area[nxgrid] = ocean_area[n][j*nx[n]+i];
di[nxgrid] = 0;
dj[nxgrid] = 0;
nxgrid++;
}
}
fid = mpp_open(axo_file[n], MPP_WRITE);
sprintf(contact, "atmos_mosaic:tile%d::ocean_mosaic:tile%d", n+1, n+1);
mpp_def_global_att(fid, "grid_version", grid_version);
mpp_def_global_att(fid, "code_version", tagname);
mpp_def_global_att(fid, "history", history);
dim_string = mpp_def_dim(fid, "string", STRING);
dim_ncells = mpp_def_dim(fid, "ncells", nxgrid);
dim_two = mpp_def_dim(fid, "two", 2);
id_contact = mpp_def_var(fid, "contact", MPP_CHAR, 1, &dim_string, 7, "standard_name", "grid_contact_spec",
"contact_type", "exchange", "parent1_cell",
"tile1_cell", "parent2_cell", "tile2_cell", "xgrid_area_field", "xgrid_area",
"distant_to_parent1_centroid", "tile1_distance", "distant_to_parent2_centroid", "tile2_distance");
dims[0] = dim_ncells; dims[1] = dim_two;
id_tile1_cell = mpp_def_var(fid, "tile1_cell", MPP_INT, 2, dims, 1, "standard_name", "parent_cell_indices_in_mosaic1");
id_tile2_cell = mpp_def_var(fid, "tile2_cell", MPP_INT, 2, dims, 1, "standard_name", "parent_cell_indices_in_mosaic2");
id_xgrid_area = mpp_def_var(fid, "xgrid_area", MPP_DOUBLE, 1, &dim_ncells, 2, "standard_name",
"exchange_grid_area", "units", "m2");
id_tile1_dist = mpp_def_var(fid, "tile1_distance", MPP_DOUBLE, 2, dims, 1, "standard_name", "distance_from_parent1_cell_centroid");
id_tile2_dist = mpp_def_var(fid, "tile2_distance", MPP_DOUBLE, 2, dims, 1, "standard_name", "distance_from_parent2_cell_centroid");
mpp_end_def(fid);
start[1] = 0;
nwrite[0] = strlen(contact);
mpp_put_var_value_block(fid, id_contact, start, nwrite, contact);
nwrite[0] = nxgrid;
mpp_put_var_value(fid, id_xgrid_area, area);
mpp_put_var_value_block(fid, id_tile1_cell, start, nwrite, i1);
mpp_put_var_value_block(fid, id_tile2_cell, start, nwrite, i2);
mpp_put_var_value_block(fid, id_tile1_dist, start, nwrite, di);
mpp_put_var_value_block(fid, id_tile2_dist, start, nwrite, di);
start[1] = 1;
mpp_put_var_value_block(fid, id_tile1_cell, start, nwrite, j1);
mpp_put_var_value_block(fid, id_tile2_cell, start, nwrite, j2);
mpp_put_var_value_block(fid, id_tile1_dist, start, nwrite, dj);
mpp_put_var_value_block(fid, id_tile2_dist, start, nwrite, dj);
mpp_close(fid);
/* write out landXocean exchange grid information */
fid = mpp_open(lxo_file[n], MPP_WRITE);
sprintf(contact, "land_mosaic:tile%d::ocean_mosaic:tile%d", n+1, n+1);
mpp_def_global_att(fid, "grid_version", grid_version);
mpp_def_global_att(fid, "code_version", tagname);
mpp_def_global_att(fid, "history", history);
dim_string = mpp_def_dim(fid, "string", STRING);
dim_ncells = mpp_def_dim(fid, "ncells", nxgrid);
dim_two = mpp_def_dim(fid, "two", 2);
id_contact = mpp_def_var(fid, "contact", MPP_CHAR, 1, &dim_string, 7, "standard_name", "grid_contact_spec",
"contact_type", "exchange", "parent1_cell",
"tile1_cell", "parent2_cell", "tile2_cell", "xgrid_area_field", "xgrid_area",
"distant_to_parent1_centroid", "tile1_distance", "distant_to_parent2_centroid", "tile2_distance");
dims[0] = dim_ncells; dims[1] = dim_two;
id_tile1_cell = mpp_def_var(fid, "tile1_cell", MPP_INT, 2, dims, 1, "standard_name", "parent_cell_indices_in_mosaic1");
id_tile2_cell = mpp_def_var(fid, "tile2_cell", MPP_INT, 2, dims, 1, "standard_name", "parent_cell_indices_in_mosaic2");
id_xgrid_area = mpp_def_var(fid, "xgrid_area", MPP_DOUBLE, 1, &dim_ncells, 2, "standard_name",
"exchange_grid_area", "units", "m2");
id_tile1_dist = mpp_def_var(fid, "tile1_distance", MPP_DOUBLE, 2, dims, 1, "standard_name", "distance_from_parent1_cell_centroid");
id_tile2_dist = mpp_def_var(fid, "tile2_distance", MPP_DOUBLE, 2, dims, 1, "standard_name", "distance_from_parent2_cell_centroid");
mpp_end_def(fid);
start[1] = 0;
nwrite[0] = strlen(contact);
mpp_put_var_value_block(fid, id_contact, start, nwrite, contact);
nwrite[0] = nxgrid;
mpp_put_var_value(fid, id_xgrid_area, area);
mpp_put_var_value_block(fid, id_tile1_cell, start, nwrite, i1);
mpp_put_var_value_block(fid, id_tile2_cell, start, nwrite, i2);
mpp_put_var_value_block(fid, id_tile1_dist, start, nwrite, di);
mpp_put_var_value_block(fid, id_tile2_dist, start, nwrite, di);
start[1] = 1;
mpp_put_var_value_block(fid, id_tile1_cell, start, nwrite, j1);
mpp_put_var_value_block(fid, id_tile2_cell, start, nwrite, j2);
mpp_put_var_value_block(fid, id_tile1_dist, start, nwrite, dj);
mpp_put_var_value_block(fid, id_tile2_dist, start, nwrite, dj);
mpp_close(fid);
free(i1);
free(j1);
free(i2);
free(j2);
free(area);
free(di);
free(dj);
}
/*Fianlly create the coupler mosaic file mosaic_name.nc */
{
int dim_string, dim_axo, dim_axl, dim_lxo, dims[2];
int id_amosaic_file, id_lmosaic_file, id_omosaic_file, id_otopog_file;
int id_axo_file, id_axl_file, id_lxo_file;
size_t start[4], nwrite[4];
for(i=0; i<4; i++) {
start[i] = 0; nwrite[i] = 1;
}
printf("mosaic_file is %s\n", mosaic_file);
fid = mpp_open(mosaic_file, MPP_WRITE);
mpp_def_global_att(fid, "grid_version", grid_version);
mpp_def_global_att(fid, "code_version", tagname);
mpp_def_global_att(fid, "history", history);
dim_string = mpp_def_dim(fid, "string", STRING);
dim_axo = mpp_def_dim(fid, "nfile_aXo", ntiles);
dim_axl = mpp_def_dim(fid, "nfile_aXl", ntiles);
dim_lxo = mpp_def_dim(fid, "nfile_lXo", ntiles);
id_amosaic_file = mpp_def_var(fid, "atm_mosaic_file", MPP_CHAR, 1, &dim_string,
1, "standard_name", "atmosphere_mosaic_file_name");
id_lmosaic_file = mpp_def_var(fid, "lnd_mosaic_file", MPP_CHAR, 1, &dim_string,
1, "standard_name", "land_mosaic_file_name");
id_omosaic_file = mpp_def_var(fid, "ocn_mosaic_file", MPP_CHAR, 1, &dim_string,
1, "standard_name", "ocean_mosaic_file_name");
id_otopog_file = mpp_def_var(fid, "ocn_topog_file", MPP_CHAR, 1, &dim_string,
1, "standard_name", "ocean_topog_file_name");
dims[0] = dim_axo; dims[1] = dim_string;
id_axo_file = mpp_def_var(fid, "aXo_file", MPP_CHAR, 2, dims, 1, "standard_name", "atmXocn_exchange_grid_file");
dims[0] = dim_axl; dims[1] = dim_string;
id_axl_file = mpp_def_var(fid, "aXl_file", MPP_CHAR, 2, dims, 1, "standard_name", "atmXlnd_exchange_grid_file");
dims[0] = dim_lxo; dims[1] = dim_string;
id_lxo_file = mpp_def_var(fid, "lXo_file", MPP_CHAR, 2, dims, 1, "standard_name", "lndXocn_exchange_grid_file");
mpp_end_def(fid);
nwrite[0] = strlen(lnd_mosaic);
mpp_put_var_value_block(fid, id_lmosaic_file, start, nwrite, lnd_mosaic);
mpp_put_var_value_block(fid, id_amosaic_file, start, nwrite, lnd_mosaic);
mpp_put_var_value_block(fid, id_omosaic_file, start, nwrite, lnd_mosaic);
for(n=0; n<ntiles; n++) {
start[0] = n; nwrite[0] =1;
nwrite[1] = strlen(ocn_topog_file[n]);
mpp_put_var_value_block(fid, id_otopog_file, start, nwrite, ocn_topog_file[n]);
nwrite[1] = strlen(axl_file[n]);
mpp_put_var_value_block(fid, id_axl_file, start, nwrite, axl_file[n]);
nwrite[1] = strlen(axo_file[n]);
mpp_put_var_value_block(fid, id_axo_file, start, nwrite, axo_file[n]);
nwrite[1] = strlen(lxo_file[n]);
mpp_put_var_value_block(fid, id_lxo_file, start, nwrite, lxo_file[n]);
}
mpp_close(fid);
}
for(n=0; n<ntiles; n++) {
free(axl_file[n]);
free(axo_file[n]);
free(lxo_file[n]);
}
free(axl_file);
free(axo_file);
free(lxo_file);
printf("\n***** Congratulation! You have successfully run make_quick_mosaic\n");
mpp_end();
return 0;
} /* main */
/*******************************************************************************
void setup_conserve_interp
Setup the interpolation weight for conservative interpolation
*******************************************************************************/
void setup_conserve_interp(int ntiles_in, const Grid_config *grid_in, int ntiles_out,
Grid_config *grid_out, Interp_config *interp, unsigned int opcode)
{
int n, m, i, ii, jj, nx_in, ny_in, nx_out, ny_out, tile;
size_t nxgrid, nxgrid2, nxgrid_prev;
int *i_in, *j_in, *i_out, *j_out;
int *tmp_t_in, *tmp_i_in, *tmp_j_in, *tmp_i_out, *tmp_j_out;
double *tmp_di_in, *tmp_dj_in;
double *xgrid_area, *tmp_area, *xgrid_clon, *xgrid_clat;
double garea;
typedef struct{
double *area;
double *clon;
double *clat;
} CellStruct;
CellStruct *cell_in;
i_in = (int *)malloc(MAXXGRID * sizeof(int ));
j_in = (int *)malloc(MAXXGRID * sizeof(int ));
i_out = (int *)malloc(MAXXGRID * sizeof(int ));
j_out = (int *)malloc(MAXXGRID * sizeof(int ));
xgrid_area = (double *)malloc(MAXXGRID * sizeof(double));
if(opcode & CONSERVE_ORDER2) {
xgrid_clon = (double *)malloc(MAXXGRID * sizeof(double));
xgrid_clat = (double *)malloc(MAXXGRID * sizeof(double));
}
garea = 4*M_PI*RADIUS*RADIUS;
if( opcode & READ) {
for(n=0; n<ntiles_out; n++) {
if( interp[n].file_exist ) { /* reading from file */
int *t_in, *ind;
int fid, vid;
nxgrid = read_mosaic_xgrid_size(interp[n].remap_file);
t_in = (int *)malloc(nxgrid*sizeof(int ));
ind = (int *)malloc(nxgrid*sizeof(int ));
if(opcode & CONSERVE_ORDER1)
read_mosaic_xgrid_order1(interp[n].remap_file, i_in, j_in, i_out, j_out, xgrid_area);
else
read_mosaic_xgrid_order2(interp[n].remap_file, i_in, j_in, i_out, j_out, xgrid_area, xgrid_clon, xgrid_clat);
/*--- rescale the xgrid area */
for(i=0; i<nxgrid; i++) xgrid_area[i] *= garea;
fid = mpp_open(interp[n].remap_file, MPP_READ);
vid = mpp_get_varid(fid, "tile1");
mpp_get_var_value(fid, vid, t_in);
mpp_close(fid);
/*distribute the exchange grid on each pe according to target grid index*/
interp[n].nxgrid = 0;
for(i=0; i<nxgrid; i++) {
if( i_out[i] <= grid_out[n].iec && i_out[i] >= grid_out[n].isc &&
j_out[i] <= grid_out[n].jec && j_out[i] >= grid_out[n].jsc )
ind[interp[n].nxgrid++] = i;
}
interp[n].i_in = (int *)malloc(interp[n].nxgrid*sizeof(int ));
interp[n].j_in = (int *)malloc(interp[n].nxgrid*sizeof(int ));
interp[n].i_out = (int *)malloc(interp[n].nxgrid*sizeof(int ));
interp[n].j_out = (int *)malloc(interp[n].nxgrid*sizeof(int ));
interp[n].area = (double *)malloc(interp[n].nxgrid*sizeof(double));
interp[n].t_in = (int *)malloc(interp[n].nxgrid*sizeof(int ));
for(i=0; i< interp[n].nxgrid; i++) {
interp[n].i_in [i] = i_in [ind[i]];
interp[n].j_in [i] = j_in [ind[i]];
interp[n].t_in [i] = t_in [ind[i]] - 1;
interp[n].i_out[i] = i_out[ind[i]] - grid_out[n].isc;
interp[n].j_out[i] = j_out[ind[i]] - grid_out[n].jsc;
interp[n].area [i] = xgrid_area[ind[i]];
}
if(opcode & CONSERVE_ORDER2) {
interp[n].di_in = (double *)malloc(interp[n].nxgrid*sizeof(double));
interp[n].dj_in = (double *)malloc(interp[n].nxgrid*sizeof(double));
for(i=0; i< interp[n].nxgrid; i++) {
interp[n].di_in[i] = xgrid_clon[ind[i]];
interp[n].dj_in[i] = xgrid_clat[ind[i]];
}
}
free(t_in);
free(ind);
}
}
if(mpp_pe() == mpp_root_pe())printf("NOTE: Finish reading index and weight for conservative interpolation from file.\n");
}
else {
cell_in = (CellStruct *)malloc(ntiles_in * sizeof(CellStruct));
for(m=0; m<ntiles_in; m++) {
nx_in = grid_in[m].nx;
ny_in = grid_in[m].ny;
cell_in[m].area = (double *)malloc(nx_in*ny_in*sizeof(double));
cell_in[m].clon = (double *)malloc(nx_in*ny_in*sizeof(double));
cell_in[m].clat = (double *)malloc(nx_in*ny_in*sizeof(double));
for(n=0; n<nx_in*ny_in; n++) {
cell_in[m].area[n] = 0;
cell_in[m].clon[n] = 0;
cell_in[m].clat[n] = 0;
}
}
for(n=0; n<ntiles_out; n++) {
nx_out = grid_out[n].nxc;
ny_out = grid_out[n].nyc;
interp[n].nxgrid = 0;
for(m=0; m<ntiles_in; m++) {
double *mask;
nx_in = grid_in[m].nx;
ny_in = grid_in[m].ny;
mask = (double *)malloc(nx_in*ny_in*sizeof(double));
for(i=0; i<nx_in*ny_in; i++) mask[i] = 1.0;
if(opcode & CONSERVE_ORDER1) {
nxgrid = create_xgrid_2dx2d_order1(&nx_in, &ny_in, &nx_out, &ny_out, grid_in[m].lonc,
grid_in[m].latc, grid_out[n].lonc, grid_out[n].latc,
mask, i_in, j_in, i_out, j_out, xgrid_area);
}
else if(opcode & CONSERVE_ORDER2) {
int g_nxgrid;
int *g_i_in, *g_j_in;
double *g_area, *g_clon, *g_clat;
nxgrid = create_xgrid_2dx2d_order2(&nx_in, &ny_in, &nx_out, &ny_out, grid_in[m].lonc,
grid_in[m].latc, grid_out[n].lonc, grid_out[n].latc,
mask, i_in, j_in, i_out, j_out, xgrid_area, xgrid_clon, xgrid_clat);
/* For the purpose of bitiwise reproducing, the following operation is needed. */
g_nxgrid = nxgrid;
mpp_sum_int(1, &g_nxgrid);
if(g_nxgrid > 0) {
g_i_in = (int *)malloc(g_nxgrid*sizeof(int ));
g_j_in = (int *)malloc(g_nxgrid*sizeof(int ));
g_area = (double *)malloc(g_nxgrid*sizeof(double));
g_clon = (double *)malloc(g_nxgrid*sizeof(double));
g_clat = (double *)malloc(g_nxgrid*sizeof(double));
mpp_gather_field_int (nxgrid, i_in, g_i_in);
mpp_gather_field_int (nxgrid, j_in, g_j_in);
mpp_gather_field_double(nxgrid, xgrid_area, g_area);
mpp_gather_field_double(nxgrid, xgrid_clon, g_clon);
mpp_gather_field_double(nxgrid, xgrid_clat, g_clat);
for(i=0; i<g_nxgrid; i++) {
ii = g_j_in[i]*nx_in+g_i_in[i];
cell_in[m].area[ii] += g_area[i];
cell_in[m].clon[ii] += g_clon[i];
cell_in[m].clat[ii] += g_clat[i];
}
free(g_i_in);
free(g_j_in);
free(g_area);
free(g_clon);
free(g_clat);
}
}
else
mpp_error("conserve_interp: interp_method should be CONSERVE_ORDER1 or CONSERVE_ORDER2");
free(mask);
if(nxgrid > 0) {
nxgrid_prev = interp[n].nxgrid;
interp[n].nxgrid += nxgrid;
if(nxgrid_prev == 0 ) {
interp[n].i_in = (int *)malloc(interp[n].nxgrid*sizeof(int ));
interp[n].j_in = (int *)malloc(interp[n].nxgrid*sizeof(int ));
interp[n].i_out = (int *)malloc(interp[n].nxgrid*sizeof(int ));
interp[n].j_out = (int *)malloc(interp[n].nxgrid*sizeof(int ));
interp[n].area = (double *)malloc(interp[n].nxgrid*sizeof(double));
interp[n].t_in = (int *)malloc(interp[n].nxgrid*sizeof(int ));
for(i=0; i<interp[n].nxgrid; i++) {
interp[n].t_in [i] = m;
interp[n].i_in [i] = i_in [i];
interp[n].j_in [i] = j_in [i];
interp[n].i_out[i] = i_out[i];
interp[n].j_out[i] = j_out[i];
interp[n].area[i] = xgrid_area[i];
}
if(opcode & CONSERVE_ORDER2) {
interp[n].di_in = (double *)malloc(interp[n].nxgrid*sizeof(double));
interp[n].dj_in = (double *)malloc(interp[n].nxgrid*sizeof(double));
for(i=0; i<interp[n].nxgrid; i++) {
jj = j_in [i]*nx_in+i_in [i];
interp[n].di_in [i] = xgrid_clon[i]/xgrid_area[i];
interp[n].dj_in [i] = xgrid_clat[i]/xgrid_area[i];
}
}
}
else {
tmp_i_in = interp[n].i_in;
tmp_j_in = interp[n].j_in;
tmp_i_out = interp[n].i_out;
tmp_j_out = interp[n].j_out;
tmp_area = interp[n].area;
tmp_t_in = interp[n].t_in;
interp[n].i_in = (int *)malloc(interp[n].nxgrid*sizeof(int ));
interp[n].j_in = (int *)malloc(interp[n].nxgrid*sizeof(int ));
interp[n].i_out = (int *)malloc(interp[n].nxgrid*sizeof(int ));
interp[n].j_out = (int *)malloc(interp[n].nxgrid*sizeof(int ));
interp[n].area = (double *)malloc(interp[n].nxgrid*sizeof(double));
interp[n].t_in = (int *)malloc(interp[n].nxgrid*sizeof(int ));
for(i=0; i<nxgrid_prev; i++) {
interp[n].t_in [i] = tmp_t_in [i];
interp[n].i_in [i] = tmp_i_in [i];
interp[n].j_in [i] = tmp_j_in [i];
interp[n].i_out[i] = tmp_i_out[i];
interp[n].j_out[i] = tmp_j_out[i];
interp[n].area [i] = tmp_area [i];
}
for(i=0; i<nxgrid; i++) {
ii = i + nxgrid_prev;
interp[n].t_in [ii] = m;
interp[n].i_in [ii] = i_in [i];
interp[n].j_in [ii] = j_in [i];
interp[n].i_out[ii] = i_out[i];
interp[n].j_out[ii] = j_out[i];
interp[n].area [ii] = xgrid_area[i];
}
if(opcode & CONSERVE_ORDER2) {
tmp_di_in = interp[n].di_in;
tmp_dj_in = interp[n].dj_in;
interp[n].di_in = (double *)malloc(interp[n].nxgrid*sizeof(double));
interp[n].dj_in = (double *)malloc(interp[n].nxgrid*sizeof(double));
for(i=0; i<nxgrid_prev; i++) {
interp[n].di_in [i] = tmp_di_in [i];
interp[n].dj_in [i] = tmp_dj_in [i];
}
for(i=0; i<nxgrid; i++) {
ii = i + nxgrid_prev;
jj = j_in [i]*nx_in+i_in [i];
interp[n].di_in [ii] = xgrid_clon[i]/xgrid_area[i];
interp[n].dj_in [ii] = xgrid_clat[i]/xgrid_area[i];
}
free(tmp_di_in);
free(tmp_dj_in);
}
free(tmp_t_in);
free(tmp_i_in);
free(tmp_j_in);
free(tmp_i_out);
free(tmp_j_out);
free(tmp_area);
}
} /* if(nxgrid>0) */
}
}
if(opcode & CONSERVE_ORDER2) {
/* subtrack the grid_in clon and clat to get the distance between xgrid and grid_in */
for(n=0; n<ntiles_in; n++) {
double *area_in;
double x1_in[50], y1_in[50], lon_in_avg, clon, clat;
int j, n0, n1, n2, n3, n1_in;
/* calcualte cell area */
nx_in = grid_in[n].nx;
ny_in = grid_in[n].ny;
area_in = (double *)malloc(nx_in*ny_in*sizeof(double));
get_grid_area(&nx_in, &ny_in, grid_in[n].lonc, grid_in[n].latc, area_in);
for(j=0; j<ny_in; j++) for(i=0; i<nx_in; i++) {
ii = j*nx_in + i;
if(cell_in[n].area[ii] > 0) {
if( fabs(cell_in[n].area[ii]-area_in[ii])/area_in[ii] < AREA_RATIO ) {
cell_in[n].clon[ii] /= cell_in[n].area[ii];
cell_in[n].clat[ii] /= cell_in[n].area[ii];
}
else {
n0 = j*(nx_in+1)+i; n1 = j*(nx_in+1)+i+1;
n2 = (j+1)*(nx_in+1)+i+1; n3 = (j+1)*(nx_in+1)+i;
x1_in[0] = grid_in[n].lonc[n0]; y1_in[0] = grid_in[n].latc[n0];
x1_in[1] = grid_in[n].lonc[n1]; y1_in[1] = grid_in[n].latc[n1];
x1_in[2] = grid_in[n].lonc[n2]; y1_in[2] = grid_in[n].latc[n2];
x1_in[3] = grid_in[n].lonc[n3]; y1_in[3] = grid_in[n].latc[n3];
n1_in = fix_lon(x1_in, y1_in, 4, M_PI);
lon_in_avg = avgval_double(n1_in, x1_in);
clon = poly_ctrlon(x1_in, y1_in, n1_in, lon_in_avg);
clat = poly_ctrlat (x1_in, y1_in, n1_in );
cell_in[n].clon[ii] = clon/area_in[ii];
cell_in[n].clat[ii] = clat/area_in[ii];
}
}
}
free(area_in);
}
for(n=0; n<ntiles_out; n++) {
for(i=0; i<interp[n].nxgrid; i++) {
tile = interp[n].t_in[i];
ii = interp[n].j_in[i] * grid_in[tile].nx + interp[n].i_in[i];
interp[n].di_in[i] -= cell_in[tile].clon[ii];
interp[n].dj_in[i] -= cell_in[tile].clat[ii];
}
}
/* free the memory */
for(n=0; n<ntiles_in; n++) {
free(cell_in[n].area);
free(cell_in[n].clon);
free(cell_in[n].clat);
}
free(cell_in);
}
if( opcode & WRITE) { /* write out remapping information */
for(n=0; n<ntiles_out; n++) {
int nxgrid;
nxgrid = interp[n].nxgrid;
mpp_sum_int(1, &nxgrid);
if(nxgrid > 0) {
size_t start[4], nwrite[4];
int fid, dim_string, dim_ncells, dim_two, dims[4];
int id_xgrid_area, id_tile1_dist;
int id_tile1_cell, id_tile2_cell, id_tile1;
int *gdata_int, *ldata_int;
double *gdata_dbl;
fid = mpp_open( interp[n].remap_file, MPP_WRITE);
dim_string = mpp_def_dim(fid, "string", STRING);
dim_ncells = mpp_def_dim(fid, "ncells", nxgrid);
dim_two = mpp_def_dim(fid, "two", 2);
dims[0] = dim_ncells; dims[1] = dim_two;
id_tile1 = mpp_def_var(fid, "tile1", NC_INT, 1, &dim_ncells, 1,
"standard_name", "tile_number_in_mosaic1");
id_tile1_cell = mpp_def_var(fid, "tile1_cell", NC_INT, 2, dims, 1,
"standard_name", "parent_cell_indices_in_mosaic1");
id_tile2_cell = mpp_def_var(fid, "tile2_cell", NC_INT, 2, dims, 1,
"standard_name", "parent_cell_indices_in_mosaic2");
id_xgrid_area = mpp_def_var(fid, "xgrid_area", NC_DOUBLE, 1, &dim_ncells, 2,
"standard_name", "exchange_grid_area", "units", "m2");
if(opcode & CONSERVE_ORDER2) id_tile1_dist = mpp_def_var(fid, "tile1_distance", NC_DOUBLE, 2, dims, 1,
"standard_name", "distance_from_parent1_cell_centroid");
mpp_end_def(fid);
for(i=0; i<4; i++) {
start[i] = 0; nwrite[i] = 1;
}
nwrite[0] = nxgrid;
gdata_int = (int *)malloc(nxgrid*sizeof(int));
if(interp[n].nxgrid>0) ldata_int = (int *)malloc(interp[n].nxgrid*sizeof(int));
gdata_dbl = (double *)malloc(nxgrid*sizeof(double));
mpp_gather_field_double(interp[n].nxgrid, interp[n].area, gdata_dbl);
mpp_put_var_value(fid, id_xgrid_area, gdata_dbl);
mpp_gather_field_int(interp[n].nxgrid, interp[n].t_in, gdata_int);
for(i=0; i<nxgrid; i++) gdata_int[i]++;
mpp_put_var_value(fid, id_tile1, gdata_int);
mpp_gather_field_int(interp[n].nxgrid, interp[n].i_in, gdata_int);
for(i=0; i<nxgrid; i++) gdata_int[i]++;
mpp_put_var_value_block(fid, id_tile1_cell, start, nwrite, gdata_int);
if(opcode & CONSERVE_ORDER2) {
mpp_gather_field_double(interp[n].nxgrid, interp[n].di_in, gdata_dbl);
mpp_put_var_value_block(fid, id_tile1_dist, start, nwrite, gdata_dbl);
}
for(i=0; i<interp[n].nxgrid; i++) ldata_int[i] = interp[n].i_out[i] + grid_out[n].isc + 1;
mpp_gather_field_int(interp[n].nxgrid, ldata_int, gdata_int);
mpp_put_var_value_block(fid, id_tile2_cell, start, nwrite, gdata_int);
mpp_gather_field_int(interp[n].nxgrid, interp[n].j_in, gdata_int);
for(i=0; i<nxgrid; i++) gdata_int[i]++;
start[1] = 1;
mpp_put_var_value_block(fid, id_tile1_cell, start, nwrite, gdata_int);
if(opcode & CONSERVE_ORDER2) {
mpp_gather_field_double(interp[n].nxgrid, interp[n].dj_in, gdata_dbl);
mpp_put_var_value_block(fid, id_tile1_dist, start, nwrite, gdata_dbl);
}
for(i=0; i<interp[n].nxgrid; i++) ldata_int[i] = interp[n].j_out[i] + grid_out[n].jsc + 1;
mpp_gather_field_int(interp[n].nxgrid, ldata_int, gdata_int);
mpp_put_var_value_block(fid, id_tile2_cell, start, nwrite, gdata_int);
free(gdata_int);
free(gdata_dbl);
if(interp[n].nxgrid>0)free(ldata_int);
mpp_close(fid);
}
}
}
if(mpp_pe() == mpp_root_pe())printf("NOTE: done calculating index and weight for conservative interpolation\n");
}
/* get target grid area if needed */
if( opcode & TARGET ) {
for(n=0; n<ntiles_out; n++) {
nx_out = grid_out[n].nxc;
ny_out = grid_out[n].nyc;
grid_out[n].area = (double *)malloc(nx_out*ny_out*sizeof(double));
get_grid_area(&nx_out,&ny_out, grid_out[n].lonc, grid_out[n].latc, grid_out[n].area);
}
}
free(i_in);
free(j_in);
free(i_out);
free(j_out);
free(xgrid_area);
if(opcode & CONSERVE_ORDER2) {
free(xgrid_clon);
free(xgrid_clat);
}
}; /* setup_conserve_interp */