Atmospheric Mixing Ratios...Logarithmic?

Discussion in 'Physics & Math' started by CheskiChips, Oct 8, 2009.

  1. CheskiChips Banned Banned

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    This is a really simple problem, and for some reason my brain isn't comprehending an equivalency.

    Are atmospheric mixing ratios logarithmic? This is within the context of Meteorology.

    \(RH=\frac{r}{r_s}\)

    \(r = \epsilon \frac{e}{p-e}\approx \epsilon \frac{e}{p}\)
    \(r_s = \epsilon \frac{e_s}{p-e_s}\approx \epsilon \frac{e_s}{p}\)

    \(RH=\frac{r}{r_s}\approx\frac{\frac{e}{p}}{\frac{e_s}{p}}\approx\frac{e}{e_s}\)

    \(e=6.11* exp{\frac{Lm_v}{R*}(273.15^{-1} - (273.15+T)^{-1})}\)

    This is correct? Mathematically I can't see why not, it just doesn't feel intuitive that the two ratios would be equivalent. Are they in actuality not?
     

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