tnat.c File Reference

Calculate PSC temperatures. More...

#include "mptrac.h"

Go to the source code of this file.

Functions
void	usage (void)
	Print command-line help. More...
int	main (int argc, char *argv[])

Detailed Description

Calculate PSC temperatures.

Definition in file tnat.c.

Function Documentation

usage()

void usage

(

void

)

Print command-line help.

Definition at line 70 of file tnat.c.

        {
 
  printf("\nMPTRAC tnat tool.\n\n");
  printf("Calculate PSC formation temperatures.\n");
  printf("\n");
  printf("Usage:\n");
  printf("  tnat <p> <h2o> <hno3>\n");
  printf("\n");
  printf("Arguments:\n");
  printf("  <p>     Pressure [hPa].\n");
  printf("  <h2o>   Water vapor volume mixing ratio [ppv].\n");
  printf("  <hno3>  Nitric acid volume mixing ratio [ppv].\n");
  printf("\nFurther information:\n");
  printf("  Manual: https://slcs-jsc.github.io/mptrac/\n");
}

main()

int main	(	int	argc,
		char *	argv[]
	)

Definition at line 39 of file tnat.c.

                {
 
  /* Print usage information... */
  USAGE;
 
  /* Check arguments... */
  if (argc < 3)
    ERRMSG("Missing or invalid command-line arguments.\n\n"
           "Usage: tnat <p> <h2o> <hno3>\n\n" "Use -h for full help.");
 
  /* Get varibles... */
  const double p = atof(argv[1]);
  const double h2o = atof(argv[2]);
  const double hno3 = atof(argv[3]);
 
  /* Write output... */
  printf("     p= %g hPa\n", p);
  printf(" q_H2O= %g ppv\n", h2o);
  printf("q_HNO3= %g ppv\n", hno3);
  printf(" T_dew= %g K\n", TDEW(p, h2o));
  printf(" T_ice= %g K\n", TICE(p, h2o));
  printf(" T_NAT= %g K\n", nat_temperature(p, h2o, hno3));
 
  return EXIT_SUCCESS;
}

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