[cam-users] ask about stable condenstation process ( in cond.F )

[Ki-Young Kim]

Dear CCM3 users:

I am trying to simulation of east Asian monsoon using CCM3.6.6 in Linux. I met the problem which is the anomalous heavy rainfall at 100E~105E, 30N~40N -the surface type is semi-Desert. Thus I started the analysis of the process of making large-scale precipitation. In the mannual(TN-420, p112) and source code(cond.F), temperature and specific humidity change due to the release of latent heat during condenstation, and this processes are iterated twice. 
After iteration, the corresponding stable precipitation rate at level k is calculated.

Thus, I think the variable "cndwtr", which is in cond.F, have to take last value after two iterations instead of summation of two iterations value.

i.e. 
101 line in src/physics/cond.F

    cndwtr(i,k)=zqcd(i)*pdel(i,k)*rga*zqdt

instead of 
    cndwtr(i,k) = cndwtr(i,k) + zqcd(i)*pdel(i,k)*rga*zqdt


I ask for your opinion whether my thought is right.

Please let me know. Many thanks in advance.

Ki-Young Kim
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Ki-Young Kim 

Dept. of Atmospheric Sciences
Pusan National University
Pusan, Korea

e-mail : kykim3@pusan.ac.kr