WCHILL
Sections
NAME
wchill - Wind chill computation program
SYNOPSIS
wchill [parameters] [temp speed]
PARAMETERS
| Command Line | Resource | Default | Description |
| -h | help | No | Lists basic help information. |
| -df=filename | default | .wxpdef | Sets the name of the resource file. |
| -na=name | name | wchill | Specifies the name used in resource file parsing. |
| -ba | batch | No | Run program in batch mode |
| -me=level | message | out2 | Specifies level of messages to be displayed
|
| -ta | table | none | Specifies to print out a table. This is the default if temperature and speed aren't prespecified. |
| -pa=parameter | parameter | none | Specifies additional parameters:
|
| temp speed |
value | none User prompt |
Specifies the temperature in F Specifies the wind speed in knts |
DESCRIPTION
The wind chill program calculates the wind chill factor from a specified temperature and wind speed. If temp and wind are not specified, the program displays a wind chill chart for reference and then prompts the user for a temperature value in F and an associated wind speed in knots. From this input data, the wind chill factor is calculated. The wind chill factor is relatively meaningless for a temperature greater than 50 F because the wind cools the skin's surface less for warmer temperatures. Also, the wind chill factor changes little for wind speeds greater than 40 knots because at that speed, the wind removes nearly all heat produced at the skin's surface. For example:
wchill 40 20 16.2
or to print a wind chill table:
wchill -table
Wind Chill
Temperature(F)
40 35 30 25 20 15 10 5 0 -5 -10 -15 -20 -25 -30
Wind(knots)
5: 36 30 25 19 14 8 3 -2 -8 -13 -19 -24 -30 -35 -40
10: 26 20 13 7 1 -6 -12 -18 -25 -31 -37 -44 -50 -56 -63
15: 20 13 6 -1 -7 -14 -21 -28 -35 -42 -49 -56 -63 -70 -77
20: 16 9 2 -6 -13 -20 -28 -35 -42 -50 -57 -64 -72 -79 -86
25: 13 6 -2 -9 -17 -25 -32 -40 -47 -55 -63 -70 -78 -85 -93
30: 11 4 -4 -12 -20 -28 -35 -43 -51 -59 -66 -74 -82 -90 -98
35: 10 2 -6 -14 -22 -30 -37 -45 -53 -61 -69 -77 -85 -93 -101
40: 9 1 -7 -15 -23 -31 -39 -47 -55 -63 -71 -79 -87 -95 -103
FILES
SEE ALSO
Last updated Aug 29, 1997