I need your help.

I ran WRF version 3.7

I would appreciate if you could take a look at the following questions.

1. Case 1

I set feedback in namelist.input file as:

For nested domains,

max_dom = 2,

feedback = 1,

2. Case 2

max_dom = 3,

feedback = 1,

3. Case 3

max_dom = 3,

feedback = 1, 0, 0,

Questions:

1. In Case 1, it is a two – ways, that is: Domain 2 is feedback to parent domain 1.

2. I am not sure about this case, Case 2.

The relationship between domain 1 and domain 2 is two-ways.

It seems to me that the relationship between domain 2 and domain 3 is one way.

That is: There is no feedback from domain 3 to domain 2 (?) – If this is true, then

the results for domain 1 and domain 2 would be the same for Case 1 and Case 2(?).

3. Case 2 and Case 3 are the same (?)

Thanks.

Chester