[MITgcm-support] diagnostics : ADVr_TH,DFrE_TH and WVELTH

[Martin Losch]

Hi,
ADVr_TH is the advective flux through the surface of the ocean. I guess it's clear that you cannot advect a property through the sea surface (the same is true for the diffusive flux DFrE_TH). Depending on your parameters the vertical velocity is W = dEta/dt, which is non-zero in the non-stationary case. As a consequence W*THETA is non-zero, which also makes sense as you transport temperature vertically with W, but you do not flux temperature throught the surface.

see DIAGNOSTICS_MAIN_INIT (or documentation?) for explanation of the different identifiers (LR, etc)

M.

On Jun 22, 2011, at 11:10 PM, Krishnakumar Rajagopalan wrote:

> Hi All,
>  
> I am reading the diagnostics ADVr_TH, DFrE_TH and WVELTH  from *.data, *.meta files in tutorial tutorial_global_oce_latlon with DELR setting and GMREDI scheme.  All the 3 diagnostics are [WM        LR].  I think M in [WM      LR] means these diagnostics are at center of the cell (thus center of the layer).  What does L and R mean?
>  
> I would like to calculate the advective and diffusive flux of pot. temp from the first layer. I am finding that ADVr_Th and DFrE_Th are always zero in the first layer. But WVELTH in the first layer takes non zero values. Why is  ADVr_TH  zero since it is a product of WVELTH and area. 
>  
> Thanks in advance
>  
> Krishnakumar
> _______________________________________________
> MITgcm-support mailing list
> MITgcm-support at mitgcm.org
> http://mitgcm.org/mailman/listinfo/mitgcm-support