precipitable_water¶
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metpy.calc.
precipitable_water
(dewpt, pressure, bottom=None, top=None)[source]¶ Calculate precipitable water through the depth of a sounding.
Formula used is:
\[-\frac{1}{\rho_l g} \int\limits_{p_\text{bottom}}^{p_\text{top}} r dp\]from [Salby1996], p. 28.
Parameters: - dewpt (pint.Quantity) – Atmospheric dewpoint profile
- pressure (pint.Quantity) – Atmospheric pressure profile
- bottom (pint.Quantity, optional) – Bottom of the layer, specified in pressure. Defaults to None (highest pressure).
- top (pint.Quantity, optional) – The top of the layer, specified in pressure. Defaults to None (lowest pressure).
Returns: pint.Quantity – The precipitable water in the layer