w3fa09.f File Reference

Temperature to saturation vapor pressure. More...

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Functions/Subroutines
real function	w3fa09 (tk)
	Computes saturation vapor pressure in kilopascals given temperataure in kelvins.

Detailed Description

Temperature to saturation vapor pressure.

Author

P. Chase

Date

1978-10-01

Definition in file w3fa09.f.

Function/Subroutine Documentation

w3fa09()

real function w3fa09

(

tk

)

Computes saturation vapor pressure in kilopascals given temperataure in kelvins.

Program history log:

• P. Chase 1978-10-01 P.CHASE
• Ralph Jones 1984-06-26 Change to ibm vs fortran.
• Ralph Jones 1984-06-26 Change to microsoft fortran 4.10.
• Ralph Jones 1990-06-08 Change to sun fortran 1.3.
• Ralph Jones 1991-03-29 Convert to silicongraphic fortran.
• Ralph Jones 1993-03-29 Add save statement.
• Ralph Jones 1995-09-25 Change tk to cray 64 bit real, change double. precision to cray 64 bit real.

Parameters

[in]

TK

REAL*8 Temperature in kelvins. if tk < 223.16, the value 223.16 will be used. if tk > 323.16, the value 323.16 will be used as the argument. 'tk' itself is unchanged.

Returns

VP Saturation vapor pressure in kilopascals 0.0063558 < VP < 12.3395.

Note

W3FA09 may be declared real*8 so that a real*8 value is returned, but no increase in accuracy is implied.

Author

P. Chase

Date

1978-10-01

Definition at line 26 of file w3fa09.f.