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mk_monthly.c
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mk_monthly.c
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/* File: mk_monthly.c */
/* Programmer : Bernt Viggo Matheussen */
/* Modified: 4/2000 by EdM to use binary flag and multiplier */
/* Date: 02.06.98 */
/* Version: 1.0 */
/* This program reads the output file from the regridding program (test.grd). */
/* It then generates monthly values for jan,feb,mar,etc that will be used */
/* together with PRISM data to scale the timeseries in each gridcell */
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#define MAX_NR_OF_CELLS (10000) /*Columbia River 0.25dg 64*56 = 3584 cells */
#define MAXLINE 80
typedef struct str_big {float jan[MAX_NR_OF_CELLS];float feb[MAX_NR_OF_CELLS];
float mar[MAX_NR_OF_CELLS];float apr[MAX_NR_OF_CELLS];
float may[MAX_NR_OF_CELLS];float jun[MAX_NR_OF_CELLS];
float jul[MAX_NR_OF_CELLS];float aug[MAX_NR_OF_CELLS];
float sep[MAX_NR_OF_CELLS];float okt[MAX_NR_OF_CELLS];
float nov[MAX_NR_OF_CELLS];float dec[MAX_NR_OF_CELLS];
}STR_BIG;
int valid_cells(FILE *pp); /* function returns the number of cells which are not void in maskfile */
int number_of_timesteps(FILE *fp1, int valcell, int binflag); /* function returns number of timesteps */
void set_0(STR_BIG *pk); /* sets all values to 0 in STR_BIG *pk */
void read_one_timestep(FILE *fptgrd,float timestep[], int nr_steps, float mult,
int binflag); /* Reads one timestep in data */
void write_data(STR_BIG *write, FILE *mask,int ys,char out_dr[]);
int tstp_to_start(int start_yy_data, int start_yy_prd);
void main(int argc, char **argv)
{
FILE *fpmask, *fpgrd; /* Filepointers for to files*/
char maskfile[150];
char grdfile[150]; /*=".grd";*/
char outp_dir[250]; /* ="out/";*/
char str1[12];
char str2[12];
int nr_of_valid_cells,nr_tstep, i,start_year,start_month;
int present_tstep, x;
int run_years, yy, binflag;
int to_start, start_period, end_period;
float prec, mult;
float tstp[MAX_NR_OF_CELLS]; /* Not using pointer could be dangerous */
STR_BIG *pt;
pt = malloc(sizeof(STR_BIG)); /* allocates memory to the structure */
if (argc<9) { /* Must be exactly 6 arguments behind the program name */
printf("Not correct number of commandline arguments %d\n",argc);
exit(EXIT_FAILURE); }
strcpy(maskfile,argv[1]);
strcpy(grdfile,argv[2]);
strcpy(outp_dir,argv[3]);
strcpy(str1,argv[4]); start_year=atoi(str1);
strcpy(str1,argv[5]); start_period=atoi(str1);
strcpy(str1, argv[6]); end_period=atoi(str1);
strcpy(str1, argv[7]); binflag=atoi(str1); /*binary flag */
strcpy(str1, argv[8]); mult=atof(str1); /*data multiplier*/
printf("Commandline arguments\n");
printf("mk_monthly ");
printf("%s %s %s %d %d %d\n",maskfile,grdfile,outp_dir,start_year, start_period,end_period);
if((fpmask = fopen(maskfile,"r"))==NULL){
printf("Cannot open file %s \n",maskfile);exit(0);}
if(binflag!=1) {
if((fpgrd = fopen(grdfile,"r"))==NULL){
printf("Cannot open file %s \n",grdfile); exit(0);}
}
else {
if((fpgrd = fopen(grdfile,"rb"))==NULL){
printf("Cannot open file %s \n",grdfile); exit(0);}
}
printf("Maximum number of cells in this program is %d\n",MAX_NR_OF_CELLS);
nr_of_valid_cells = valid_cells(fpmask);
printf("Number of valid cells are %d\n",nr_of_valid_cells);
nr_tstep = number_of_timesteps(fpgrd, nr_of_valid_cells, binflag);
printf("Number of timesteps are %d\n",nr_tstep);
set_0(pt);
printf("start_year = %d\n",start_year);
printf("start_period = %d\n",start_period);
printf("end_period = %d\n",end_period);
to_start = tstp_to_start(start_year,start_period);
printf("Timesteps to start = %d\n",to_start);
for (i=0;i<to_start;i++)read_one_timestep(fpgrd,tstp,nr_of_valid_cells,mult,binflag); /* Moving down */
run_years = tstp_to_start(start_period,(1+end_period));
printf("Timesteps to run = %d\n",run_years);
run_years = end_period - start_period +1;
printf("Number of years to run = %d \n",run_years);
prec =0.0;
for(yy=0;yy<run_years;yy++)
{
for (i = 0;i<31;i++){ /* January */
read_one_timestep(fpgrd,tstp,nr_of_valid_cells,mult,binflag);
for (x=0;x<nr_of_valid_cells;x++) pt->jan[x] = pt->jan[x]+tstp[x]; }
if (start_period%4!=0) { /*February */
for (i =0;i<28;i++) {
read_one_timestep(fpgrd,tstp,nr_of_valid_cells,mult,binflag);
for (x=0;x<nr_of_valid_cells;x++) pt->feb[x] = pt->feb[x]+tstp[x]; }
printf("Regular year %d \n",start_period); }
if (start_period%4==0) { /* February*/
for (i =0;i<29;i++) {
read_one_timestep(fpgrd,tstp,nr_of_valid_cells,mult,binflag);
for (x=0;x<nr_of_valid_cells;x++) pt->feb[x] = pt->feb[x]+tstp[x]; }
printf("Leap year %d \n",start_period); }
for (i = 0;i<31;i++){ /* March */
read_one_timestep(fpgrd,tstp,nr_of_valid_cells,mult,binflag);
for (x=0;x<nr_of_valid_cells;x++) pt->mar[x] = pt->mar[x]+tstp[x]; }
for (i = 0;i<30;i++){ /* April */
read_one_timestep(fpgrd,tstp,nr_of_valid_cells,mult,binflag);
for (x=0;x<nr_of_valid_cells;x++) pt->apr[x] = pt->apr[x]+tstp[x]; }
for (i = 0;i<31;i++){ /* May */
read_one_timestep(fpgrd,tstp,nr_of_valid_cells,mult,binflag);
for (x=0;x<nr_of_valid_cells;x++) pt->may[x] = pt->may[x]+tstp[x]; }
for (i = 0;i<30;i++){ /* June */
read_one_timestep(fpgrd,tstp,nr_of_valid_cells,mult,binflag);
for (x=0;x<nr_of_valid_cells;x++) pt->jun[x] = pt->jun[x]+tstp[x]; }
for (i = 0;i<31;i++){ /* July */
read_one_timestep(fpgrd,tstp,nr_of_valid_cells,mult,binflag);
for (x=0;x<nr_of_valid_cells;x++) pt->jul[x] = pt->jul[x]+tstp[x]; }
for (i = 0;i<31;i++){ /* August */
read_one_timestep(fpgrd,tstp,nr_of_valid_cells,mult,binflag);
for (x=0;x<nr_of_valid_cells;x++) pt->aug[x] = pt->aug[x]+tstp[x]; }
for (i = 0;i<30;i++){ /* September */
read_one_timestep(fpgrd,tstp,nr_of_valid_cells,mult,binflag);
for (x=0;x<nr_of_valid_cells;x++) pt->sep[x] = pt->sep[x]+tstp[x]; }
for (i = 0;i<31;i++){ /* Oktober */
read_one_timestep(fpgrd,tstp,nr_of_valid_cells,mult,binflag);
for (x=0;x<nr_of_valid_cells;x++) pt->okt[x] = pt->okt[x]+tstp[x]; }
for (i = 0;i<30;i++){ /* November */
read_one_timestep(fpgrd,tstp,nr_of_valid_cells,mult,binflag);
for (x=0;x<nr_of_valid_cells;x++) pt->nov[x] = pt->nov[x]+tstp[x]; }
for (i = 0;i<31;i++){ /* December */
read_one_timestep(fpgrd,tstp,nr_of_valid_cells,mult,binflag);
for (x=0;x<nr_of_valid_cells;x++) pt->dec[x] = pt->dec[x]+tstp[x]; }
start_period = start_period +1;
} /* END of yearly loop */
write_data(pt,fpmask,run_years,outp_dir); /* Function writes the output file */
free(pt); /***** Removes memory ****/
fclose(fpgrd);
fclose(fpmask);
/*** END main *********************/
}
/*******************************************************************************/
int valid_cells(FILE *pp) /* function returns the number of cells which are not void in maskfile */
{
int cnt;
char s1[MAXLINE];
char cdum[MAXLINE];
float void_nr,up,down;
for (cnt =0;cnt<6;cnt++) fgets(s1,MAXLINE,pp); /* Moving down to data*/
sscanf(s1,"%s %f", &cdum, &void_nr);
up = void_nr + 0.0001;
down = void_nr - 0.0001;
printf("Void is now = %.0f\n",void_nr);
cnt = 0; /* Avoid comparing float using '==' */
while (fscanf(pp,"%s",&s1)!=EOF){if(atof(s1)>up||atof(s1)<down)cnt++;}
rewind(pp);
return cnt;
/*** END function valid_cells ***/
}
/*******************************************************************************/
int number_of_timesteps(FILE *fp1, int valcell, int binflag){
char s2[10];
short int dummy_int;
int j;
j=0;
if(binflag!=1){
while (fscanf(fp1,"%s",&s2)!=EOF)j++; /*used for ascii data */
}
else {
while((fread(&dummy_int,sizeof(short int),1,fp1) != 0)) j++; /*Binary data*/
}
rewind(fp1);
return (j/valcell);}
/*******************************************************************************************/
void set_0(STR_BIG *pk){
int k;
for (k=0;k<MAX_NR_OF_CELLS;k++) pk->jan[MAX_NR_OF_CELLS] = 0.0;}
/**********************************************************************************************/
void read_one_timestep(FILE *fptgrd,float timestep[],int nr_steps,float mult,int
binflag)
{
int i;
short int stmp;
char ss[10];
for (i = 0;i<nr_steps;i++) {
if(binflag!=1) {
fscanf(fptgrd,"%s",&ss); /* ascii data */
timestep[i] = atof(ss);
printf("%d %s %f\n", i, ss, atof(ss));
}
else {
fread(&stmp,sizeof(short),1,fptgrd); /*Binary data */
timestep[i]=(float)stmp/mult;
}
}
}
/*******************************************************************************************/
void write_data(STR_BIG *write, FILE *mask,int ys,char out_dr[])
{
FILE *fpjan, *fpfeb, *fpmar, *fpapr, *fpmay, *fpjun;
FILE *fpjul, *fpaug, *fpsep, *fpokt, *fpnov, *fpdec;
char s1[MAXLINE];
char cdum[MAXLINE];
float void_nr,up,down; /* Directory name and filename must not be more than 200 char */
int i;
char jan[200]="monthly.jan"; char feb[200]="monthly.feb"; char mar[200]="monthly.mar";
char apr[200]="monthly.apr"; char may[200]="monthly.may"; char jun[200]="monthly.jun";
char jul[200]="monthly.jul"; char aug[200]="monthly.aug"; char sep[200]="monthly.sep";
char okt[200]="monthly.oct"; char nov[200]="monthly.nov"; char dec[200]="monthly.dec";
char void_str[10];
char old_dir[200];
int k, cols, rows, cells;
printf("Writing monthly values \n");
strcpy(old_dir,out_dr);
strcat(out_dr,jan); strcpy(jan,out_dr); strcpy(out_dr,old_dir);
strcat(out_dr,feb); strcpy(feb,out_dr); strcpy(out_dr,old_dir);
strcat(out_dr,mar); strcpy(mar,out_dr); strcpy(out_dr,old_dir);
strcat(out_dr,apr); strcpy(apr,out_dr); strcpy(out_dr,old_dir);
strcat(out_dr,may); strcpy(may,out_dr); strcpy(out_dr,old_dir);
strcat(out_dr,jun); strcpy(jun,out_dr); strcpy(out_dr,old_dir);
strcat(out_dr,jul); strcpy(jul,out_dr); strcpy(out_dr,old_dir);
strcat(out_dr,aug); strcpy(aug,out_dr); strcpy(out_dr,old_dir);
strcat(out_dr,sep); strcpy(sep,out_dr); strcpy(out_dr,old_dir);
strcat(out_dr,okt); strcpy(okt,out_dr); strcpy(out_dr,old_dir);
strcat(out_dr,nov); strcpy(nov,out_dr); strcpy(out_dr,old_dir);
strcat(out_dr,dec); strcpy(dec,out_dr); strcpy(out_dr,old_dir);
fpjan = fopen(jan,"w"); fpfeb = fopen(feb,"w"); fpmar = fopen(mar,"w");
fpapr = fopen(apr,"w"); fpmay = fopen(may,"w"); fpjun = fopen(jun,"w");
fpjul = fopen(jul,"w"); fpaug = fopen(aug,"w"); fpsep = fopen(sep,"w");
fpokt = fopen(okt,"w"); fpnov = fopen(nov,"w"); fpdec = fopen(dec,"w");
printf("output files opened successfully\n");
rewind(mask);
for(i=0;i<6;i++){
fgets(s1,MAXLINE,mask);
fprintf(fpjan,"%s",s1); fprintf(fpfeb,"%s",s1);
fprintf(fpmar,"%s",s1); fprintf(fpapr,"%s",s1);
fprintf(fpmay,"%s",s1); fprintf(fpjun,"%s",s1);
fprintf(fpjul,"%s",s1); fprintf(fpaug,"%s",s1);
fprintf(fpsep,"%s",s1); fprintf(fpokt,"%s",s1);
fprintf(fpnov,"%s",s1); fprintf(fpdec,"%s",s1);
}
rewind(mask);
fgets(s1,MAXLINE,mask);
sscanf(s1,"%s %d", &cdum, &cols);
fgets(s1,MAXLINE,mask);
sscanf(s1,"%s %d", &cdum, &rows);
fgets(s1,MAXLINE,mask);
fgets(s1,MAXLINE,mask);
fgets(s1,MAXLINE,mask);
fgets(s1,MAXLINE,mask);
sscanf(s1,"%s %f", &cdum, &void_nr);
sprintf(void_str, "%.2f", void_nr);
printf("cols, %d\trows, %d\tvoid, %.0f\n", cols, rows, void_nr);
up = void_nr + 0.0001;
down = void_nr - 0.0001;
k = 0;
cells = 0;
while (fscanf(mask,"%s",&s1)!=EOF)
{
cells++;
if(atof(s1)>up||atof(s1)<down){ /* Avoid comparing float using '==' */
fprintf(fpjan,"%4.2f ",(write->jan[k]/ys)); fprintf(fpfeb,"%4.2f ",(write->feb[k]/ys));
fprintf(fpmar,"%4.2f ",(write->mar[k]/ys)); fprintf(fpapr,"%4.2f ",(write->apr[k]/ys));
fprintf(fpmay,"%4.2f ",(write->may[k]/ys)); fprintf(fpjun,"%4.2f ",(write->jun[k]/ys));
fprintf(fpjul,"%4.2f ",(write->jul[k]/ys)); fprintf(fpaug,"%4.2f ",(write->aug[k]/ys));
fprintf(fpsep,"%4.2f ",(write->sep[k]/ys)); fprintf(fpokt,"%4.2f ",(write->okt[k]/ys));
fprintf(fpnov,"%4.2f ",(write->nov[k]/ys)); fprintf(fpdec,"%4.2f ",(write->dec[k]/ys));
k++; }
else {
fprintf(fpjan,"%s ",void_str); fprintf(fpfeb,"%s ",void_str);
fprintf(fpmar,"%s ",void_str); fprintf(fpapr,"%s ",void_str);
fprintf(fpmay,"%s ",void_str); fprintf(fpjun,"%s ",void_str);
fprintf(fpjul,"%s ",void_str); fprintf(fpaug,"%s ",void_str);
fprintf(fpsep,"%s ",void_str); fprintf(fpokt,"%s ",void_str);
fprintf(fpnov,"%s ",void_str); fprintf(fpdec,"%s ",void_str); }
if (cells==cols) {
fprintf(fpjan,"\n");cells=0; fprintf(fpfeb,"\n");cells=0;
fprintf(fpmar,"\n");cells=0; fprintf(fpapr,"\n");cells=0;
fprintf(fpmay,"\n");cells=0; fprintf(fpjun,"\n");cells=0;
fprintf(fpjul,"\n");cells=0; fprintf(fpaug,"\n");cells=0;
fprintf(fpsep,"\n");cells=0; fprintf(fpokt,"\n");cells=0;
fprintf(fpnov,"\n");cells=0; fprintf(fpdec,"\n");cells=0; }
}
fclose(fpjan); fclose(fpfeb); fclose(fpmar);
fclose(fpapr); fclose(fpmay); fclose(fpjun);
fclose(fpjul); fclose(fpaug); fclose(fpsep);
fclose(fpokt); fclose(fpnov); fclose(fpdec);
}/*END function write_data*/
/************************************************************************************************/
int tstp_to_start(int start_yy_data, int start_yy_prd)
{
int value,i,diff;
value =0;
if (start_yy_data > start_yy_prd) printf("ERROR not correct commandline arguments \n");
diff = start_yy_prd - start_yy_data;
if (start_yy_data < start_yy_prd) {
for (i=0;i<diff;i++) {
if (start_yy_data%4==0) value = value +366;
if (start_yy_data%4!=0) value = value +365;
start_yy_data++; } }
return value;
}/** End of function int tstp_to_start(int start_yy_data, int start_yy_prd)*****/
/*******************************************************************************/