output Averages done in CAM 3.1

[bnarapus@gmu_edu]

Hi All,

I am using CAM 3.1 to write out averaged 15-day outputs of boundary layer heights. I started my model on 1981-Jan-02 and make sure my namelist variable which changes the output frequency to be 15 days. To get the 15 days averaged output I make sure such a statement exist in the control directory.

call addfld ('PBLH ','m ',1, 'A','PBL height',phys_decomp).

Now I am getting the outputs on 1981-Jan-02, 1981-Jan-17, ...........

I want to know which days are averaged to produce 1981-Jan-02.

1981-Jan-02 output means :average of 1981-Jan-02 to 1981-Jan-16?

thanks in advance,
Bala

 

[bnarapus@gmu_edu]

I checked the values of 1981-Jan-02 output, and it seems like the variables written in this output file are almost similar to model initial values. Therefore a simple conclusion is 1981-Jan-02 output is not the average over Jan-2 to Jan 16.

Now that brings another question:

Which days are averaged in making 1981-Jan-17?
I am confused between the following two possible options:
(Option 1): 1981-Jan-17 is the average over Jan-3 to Jan 17
(Option 2): 1981-Jan-17 is the average over Jan-2 to Jan-16.
Which one of the above options are used by CAM to create 1981-Jan-17?

Thank you.

Hi All,

I am using CAM 3.1 to write out averaged 15-day outputs of boundary layer heights. I started my model on 1981-Jan-02 and make sure my namelist variable which changes the output frequency to be 15 days. To get the 15 days averaged output I make sure such a statement exist in the control directory.

call addfld ('PBLH ','m ',1, 'A','PBL height',phys_decomp).

Now I am getting the outputs on 1981-Jan-02, 1981-Jan-17, ...........

I want to know which days are averaged to produce 1981-Jan-02.

1981-Jan-02 output means :average of 1981-Jan-02 to 1981-Jan-16?

thanks in advance,
Bala