Changeset 4827

Timestamp:

Feb 16, 2024, 2:59:33 PM (3 months ago)

Author:

jyg

Message:

Improved comment for multiply_proba_notrig

File:

• LMDZ6/trunk/libf/phylmd/alpale_th.F90 (modified) (1 diff)

LMDZ6/trunk/libf/phylmd/alpale_th.F90

@@ -100 +100 @@
 
 !!
-!!  The following 3 lines should be commented if one wants to activate the 
-!! multiplication of no-trigger probabilities between calls to the convection 
-!! scheme.
+!!   Control of the multiplication of no-trigger probabilities between calls 
+!! to the convection scheme. If multiply_proba_notrig is .false., then
+!! proba_notrig is set to 1 at each call to alpale_th, so that only the last call 
+!! plays a role in the triggering of convection. If it is .true., then propa_notrig 
+!! is saved between calls to convection and is reset to 1 only after calling the 
+!! convection scheme.
+!!    For instance, if the probability of no_trigger is 0.9 at each call, and if 
+!! there are 3 calls to alpale_th between calls to the convection scheme, then the 
+!! probability of triggering convection will be 0.1 (= 1.-0.9) if 
+!! multiply_proba_notrig is .false. and 0.271 (= 1.-0.9^3) if multiply_proba_notrig 
+!! is .true.
 !!
     IF (.NOT.multiply_proba_notrig) THEN