<p>Has been answered in the other community: The discrepany is due to a different definition of relative humidity as used in the metpy function <code>mixing_ratio_from_relative_humidity</code>.</p>
<p>See also: <a href="https://github.com/Unidata/MetPy/issues/2951" rel="nofollow noreferrer">https://github.com/Unidata/MetPy/issues/2951</a></p>

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2023-05-17T07:42:58.397Z
2023-05-17T07:42:58.397Z
MichaelW
<p>I asked a question regarding mixing ratio and wet adiabatic lifting in
<a href="https://stackoverflow.com/questions/76244447/why-is-mixing-ratio-at-lcl-not-the-same-as-for-starting-condition">https://stackoverflow.com/questions/76244447/why-is-mixing-ratio-at-lcl-not-the-same-as-for-starting-condition</a>.</p>
<p>I don't want to create a redundant copy of this question, but maybe the question can be answered here better than in the other community.</p>
<p>Is it a problem in the python library or did I make a mistake in my reasoning?</p>

<meteorology><atmosphere-modelling><python><metpy><condensation>
Why is mixing ratio at LCL not the same as for starting condition?
MichaelW
# Why is mixing ratio at LCL not the same as for starting condition?

(Asked by: username_0 on 2023-05-13)

I asked a question regarding mixing ratio and wet adiabatic lifting in
<https://stackoverflow.com/questions/76244447/why-is-mixing-ratio-at-lcl-not-the-same-as-for-starting-condition>.

I don't want to create a redundant copy of this question, but maybe the question can be answered here better than in the other community.

Is it a problem in the python library or did I make a mistake in my reasoning?

**Tags:** meteorology, atmosphere-modelling, python, metpy, condensation


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## 1 answers

### Answer by username_0 on 2023-05-17. Score: 1 | Accepted answer

Has been answered in the other community: The discrepany is due to a different definition of relative humidity as used in the metpy function `mixing_ratio_from_relative_humidity`.

See also: <https://github.com/Unidata/MetPy/issues/2951>


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