CalcSZA.c File Reference

Solar Angles computation. More...

#include <math.h>
#include <string.h>
#include <stdio.h>
#include "solpos.h"

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Functions
int	SZACalc (double d_lat, double d_long, double d_tzone, int d_year, int d_daynum, int d_hour, int d_minute, int d_second, float d_temp, float d_press, float d_tilt, float d_aspect)
	Calc. Solar angles and radiatives quantities. . More...

Detailed Description

Solar Angles computation.

Author

Daniele Bortoli (13/10/2002)

Definition in file CalcSZA.c.

Function Documentation

SZACalc()

int SZACalc	(	double	d_lat,
		double	d_long,
		double	d_tzone,
		int	d_year,
		int	d_daynum,
		int	d_hour,
		int	d_minute,
		int	d_second,
		float	d_temp,
		float	d_press,
		float	d_tilt,
		float	d_aspect
	)

Calc. Solar angles and radiatives quantities.
.

Parameters

d_lat	station latitude
d_long	station longitude
d_tzone	station time zone
d_year	year
d_daynum	day number
d_hour	hour
d_minute	minute
d_second	seconds
d_temp	temperature DEFAULT 10.0 (standard temperature)
d_press	pressure DEFAULT 1013.0 (standard pressure)
d_tilt	tilted DEFAULT 0.0 (horizontal panel)
d_aspect	aspect DEFAULT 180.0 (South-facing panel)

Returns

int

Definition at line 89 of file CalcSZA.c.

References S_aspect, S_date(), S_daynum, S_hour, S_latitude, S_longitude, S_minute, S_press, S_second, S_solpos(), S_temp, S_tilt, S_timezone, and S_year.

Referenced by D_AutoExecution(), SZA_FindMin(), SZA_FirstCalc(), and Task_Timer().

{
       //Coordinate TNB
 //   S_longitude = 164.123;  /* Note that latitude and longitude are  */
 //   S_latitude  =  -74.695;  /*   in DECIMAL DEGREES, not Deg/Min/Sec */
 //   S_timezone  =  11.0;   /* Eastern time zone, even though longitude would
    //              suggest Central.  We use what they use.
    //              DO NOT ADJUST FOR DAYLIGHT SAVINGS TIME. */
    //Coordinate StaraZagora BG
    //  S_longitude = 25.633;
    //  S_latitude  = 42.416;
    //  S_timezone  = 2;

    //Coordinate Bologna
    //  S_longitude = 11.333;
    //  S_latitude  = 44.483;
    //  S_timezone  = 1;

    //Coordinate GreenWitch
    //  S_longitude = 0;
    //  S_latitude  = 51.29;
    //  S_timezone  = 0;

    //Coordinate 0,90,0
    //  S_longitude = 0;
    //  S_latitude  = 90;
    //  S_timezone  = 0;

    //Coordinate Mt Cimone
 //     S_longitude = 10.42;
 //     S_latitude  = 44.11;
 //     S_timezone  = 1;

      S_longitude = d_long;
      S_latitude  = d_lat;
      S_timezone  = d_tzone;
      S_year      = d_year;
      S_daynum    = d_daynum;

    S_date ( );

    S_hour = d_hour;
    S_minute = d_minute;
    S_second = d_second;

    S_temp      =   d_temp;
    S_press     = d_press;

    S_tilt      = S_latitude;  /* Tilted at latitude */
    S_aspect    = d_aspect;       /* 135 deg. = SE */

    S_solpos ( );

    return 0;
}

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