INPUT DATA REQUIRED
All input data is interactively entered through the keyboard as prompted on the screen.
First the atmospheric pressure must be established. This may be entered directly in kPa or, alternatively, by elevation in metres above sea level in the range from -1000m to 12000m (113.930 kPa to 19.286 kPa). The default is for 101.325 kPa which is the standard atmospheric pressure at sea level. A listing of elevations for some typical locations can be displayed upon request. Pressures occurring outside the valid elevation range must be entered directly in kPa, in which case the valid range is from 1kPa to 5000kPa.
The next request is for the entry of the dry bulb temperature. The valid range for this parameter is from -125 C to the critical temperature of water at 374.15 C. After this entry one of four options must be selected and entered as the second parameter to complete the input requirements for the program. These options are:
Wet Bulb Temperature Relative Humidity
Dew Point Temperature Humidity Ratio