convectional
1.The result indicates: initial CCN has great influence on convectional precipitation.
2.VERTICAL DISTRIBUTION OF CONVECTIONAL HEAT AND 30~60-DAY LOW-FREQUENCY OSCILLATION IN THE TROPICS
3.In case of cold rain processes,the bigger initial CCN,the weaker convectional intensity,and the less surface accumulated hail, and the increase of initial CCN delayed the time of liquid water to surface. But at last,the increase of initial CCN enhanced surface accumulated liquid precipitation.
4.A two-dimensional anelastic nonhydrostatic equilibrium cloud model has been used to simulate initial cloud droplet concentration(CCN) effect on convectional warm rain and cold rain processes, and three typical samples have been used to simulate test in this paper.
5.The general three-level explicit difference schemes with two parameters m and k, including two knots in the middle level is presented, for the convectional equation ut=aux,which become two order scheme when m and k satisfy the definite relation. The analysis on stability shows that the stability region is not larger than (0,1], which is different from that of the dispersive equation.

