Is there a way to close moisture budget?

[jalihal@caos_iisc_ernet_in]

Hey everyone,      For my analysis I need to have closure of moisture budget, for every month of the output. I
have used the flux form of the equation, with inputs being (VQ, UQ and OMEGAQ), but this has
not worked.     Is there an alternate method? Will using the divergence form of the equation help? If so, then
how to output Div(Vq)?     I am using CESM 1.0.4, monthly output.

 

[islas]

Hi Chetankumar,
Is it the vertically integrated moisture budget you're looking at?  Have you seen this paper?  http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-13-00018.1. It discusses methodologies for computing the vertically integrated moisture balance diagnostically and gives some idea of what sort of errors could be expected.  I think the flux form of the equation should work, and using the accumulated fluxes VQ, UQ and OMEGAQ would be the right thing to do, so perhaps you're missing a component of the balance or have an error somewhere in the computation if you have errors that are larger than discussed in that paper.Isla

 

[islas]

Hi Chetankumar,
Is it the vertically integrated moisture budget you're looking at?  Have you seen this paper?  http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-13-00018.1. It discusses methodologies for computing the vertically integrated moisture balance diagnostically and gives some idea of what sort of errors could be expected.  I think the flux form of the equation should work, and using the accumulated fluxes VQ, UQ and OMEGAQ would be the right thing to do, so perhaps you're missing a component of the balance or have an error somewhere in the computation if you have errors that are larger than discussed in that paper.Isla