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Old May 8th 12, 02:22 PM posted to uk.sci.weather
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Default Conversion of Integrated Water Vapour (kg/m2) to Precipitable WaterContent (cm)

Hello everyone,

I have what is probably a rather simple question here - but I'm struggling to solve it myself. I have a number of measurements of Integrated Water Vapour, in units of kg/m^2 and I need to provide this as an input to a model as Precipitable Water Content in cm.

Is there an easy way to convert between these? As far as I am aware, the definition of PWC is the height of the water if all of the water in the air column was precipitated out, so I guess this question is basically "What is the height in cm of X kg/m^2 of water?" - is that possible to answer with a simple conversion formulae?

Any help would be much appreciated,

Best regards,

Robin
 
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