Scm with fixed solar radiation

Hi all,

I would like to change the Single column model source code in order to run the model with constant and fixed radiation from the sun, avoiding diurnal cycle.

By looking at the source code for the radiation initialization SUECRAD, I  noticed  that  there  was  a  switch  LPERPET  with  the caption ”perpetual run for radiation”.  LPERPET = true seems to imply that the time counter to update the radiation stops and is never updated. Indeed the latter is called in the subroutine UPDTIM  and in the subroutine UPDTIER, the subroutines to update time and radiation computation.

Furthermore I found this  parameter to be connected  with the aqua-planet model configuration  (LAQUA).
LPERPET is set to true if another switch, LAPE, is set to true. Switching LAPE to true means changing the  aqua-planet model configuration by keeping the insolation fixed.

How do we run the single column model in the LAPE configuration?  Can we do it outside the acqua-planet configuration?  Is this the way to keep the insolation fixed?  Is there another way, maybe simplier?

Best regards,

Miriam