Coupled Coagulation of Aerosols in the Stratosphere when Gravity Motion is Dominant
平流层重力占优气溶胶粒子的耦合碰并

Coupled coagulation of aerosol particles in the stratosphere is carried out when gravity motion is dominant. As the atmosphere is dilute in the stratosphere, the molecular system approximation at large Knudsen number must be used. When gravity motion is dominant, the analytic solutions of the new pair-distribution equation are obtained by the method at high Q ij number. The results show that there is larger coagulation rate of the aerosol particles in the stratosphere than in the troposphere.