Soil moisture in mm (millimeter)!!!

[sukanta]

I am a CCSM3.0 user, focusing on the land part (CLM) of the model. I am trying to compare the soil moisture (SOILLIQ + SOILICE) from CLM with CPC soil moisture climatology. The problem is that,
the model derived soil moisture has unit 'Kg/m^2' whereas the CPC soil moisture has the unit 'mm'.

My question is "how to convert 'Kg/m^2' (water weight) to 'mm' (water height equivalents)?
If you have any idea, kindly help me.
Thank you.

[slevis]

This calculation should be trivial for any scientist. Having said that, I'm not sure whether I would have considered it so intuitive, had I not solved it for a homework problem early on in graduate school...

1 Kg water per m^2 soil is equivalent to 1 liter water per m^2 soil =
10^-3 m^3 water per m^2 soil =
10^-3 m water =
1 mm water

Sam Levis

[climatevegetation]

Dear Sam,

I am wondering how to use 4 PFTs (less PFTs) instead of 10 PFTs in CLM-DGVM? Should I change the PFTs initial value? Thank you.

Best,
Rima