how to modify temperature on specific area(or landuse or grid)

[chwan]

I want to study sea-land breeze in different thermodynamic case.
case 1 : sea-land temperature difference is 5 degree C.
case 2 : sea-land temperature difference is 10 degree C.
it doesn't need to be correctly '5' or '10' degree C, but I want to see the difference of wind, snow in different sea-land breeze strengths.
So I want to modify temperature on specific area(or landuse or grid).
Is it any method to modify temperature to land in this case?

 

[Ming Chen]

Please take a look at the code "dyn_em/module_initialize_ideal.F", in which you can find the following piece of codes:

! Hard-wire the ocean-land configuration
        if (i .ge. (icm-lm) .and. i .lt. (icm+lm)) then 
         grid%xland(i,j)     = 1. 
         grid%lu_index(i,j)  = 18 
         grid%tsk(i,j) = 280.0
         grid%tmn(i,j) = 280.0
        else 
         grid%xland(i,j)     = 2. 
         grid%lu_index(i,j)  = 16 
         grid%tsk(i,j) = 287.0
         grid%tmn(i,j) = 280.0
        end if

This is where you can manipulate land-sea temperature difference and run sensitivity tests.

 

[chwan]

Thanks for your apply!!
Can I do same or similar way for real case?

 

[Ming Chen]

For real-data case, you have to modify wrfinput instead of changing codes. This is because real-data case always reads input data from wrfinput.

 

[chwan]

Thank you so much!