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rainc is absent in coarse domain only in the nested domain region

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Hello there,
I have used 3 domains. While i visualize the parameter 'rainc' in the coarse/parent domain,
'rainc' is absent in coarse domain only in the nested domain region.
Is this because of my cumulus scheme // cu_physics = 1, 0, 0, // ???
See the picture attached herewith. I've also attached my namelist.input


  • namelist.input
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  • raincd01.png
    80.4 KB · Views: 1,194
This setting "cu_physics = 1, 0, 0," turned off cumulus in child domains. I guess you also turn on feedback for this case. Aa a result, the the child domain simulation will feedback to parent domain, which explains why rainc is zero in the parent domain.