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Appendix B. Equations

()

⎟

⎠

⎞

⎜

⎝

⎛

−

⎟

⎠

⎞

⎜

⎝

⎛

1000

15.273

(B-5)

Dew Point from Molar Mixing Ratio

tmpd

502.17

97.240

−

(B-6

)

()

⎟

⎠

⎞

⎜

⎝

⎛

+⋅

tmpd

lnT

100061121.0

(B-7

)

(

)

(

)

295

109.5102.300072.1 PTPf

−−

×+×+= (B-8

)

Water Vapor Molar Mixing Ratio from Dew Point

1000

−

(B-9)

⎟

⎠

⎞

⎜

⎝

⎛

⋅⋅=

EXPfe

97.240

502.17

61121.0

(B-10

)

Water Vapor Mass Density from Dew Point

()

(

)

()

⎟

⎠

⎞

⎜

⎝

⎛

EXP

97.240

502.17

15.273

61121.0018.0

(B-11

)

Vapor Pressure from Molar Mixing Ratio and Water Vapor Density

1000

(B-12)

()

15.273

(B-13)

Leuning, R (2004) Measurements of Trace Gas Fluxes in the Atmosphere

Using Eddy Covariance: WPL Revisited. The Handbook of Micrometeorology,

29, 119-132. New York: Kluwer Academic Publishers. Eq. 6.23

Buck, A L (1981) New Equations for Computing Vapor Pressure and

Enhancement Factor. Journal of Applied Meteorology 20, 1527-1532. Eqs.

2a, 3a, and 6

B-2

1 2 ... 53 54 55 56 57 58 59

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