How to modify the evaporation rate of SOM to CAM?

[jianma@hawaii_edu]

Hi there,

I am running the CAM with the Slab Ocean Model. May I ask where and how to modify the relative humidity in order to change the evaporation rate? I checked the SOM. It only has latent heat calculation, but I did not find anything about evaporation.

Thank you very much!
Tony

 

[rneale]

The latent heat flux calculation is the same as the evaporation with just a unit change.

 

[jianma@hawaii_edu]

Thanks, Richard,

So I guess I can modify the variable "qbot" in
/CAM/cam1/models/atm/cam/src/ocnsice/som/flxoce.F90

BTW, I want to modify the ocean grid only. Could you pls tell me where to find the mask of the ocean and how the single column index "i" is defined for these two-dimensional variables?

Many thanks again,
Tony

 

[rneale]

You need to repost that question on the pop ocean forum.

 

[jianma@hawaii_edu]

Thanks Richard,

What matters is that the POP doesn't use the same grid points with the CAM, but the SOM does.
Anyway, I can find the ocean grid by other means like the SST output.
But could you pls tell me how to relate the index "i" with the longitudinal and latitudinal points?

Many thanks,
Tony

 

[suvarchal_kumar@gmail_com]

i guess you can even find ocean mask from variable OCNFRAC or LANDFRAC which is output by default. sorry i did't understand what you meant by index "i" , do you mean
coordinate variable of an array say sst(i,j,k) ?

Thanks Richard,

What matters is that the POP doesn't use the same grid points with the CAM, but the SOM does.
Anyway, I can find the ocean grid by other means like the SST output.
But could you pls tell me how to relate the index "i" with the longitudinal and latitudinal points?

Many thanks,
Tony