Molecular-dynamic modeling of ultradisperse water in the earth atmosphere

Molecular-dynamic calculations are used for analyzing the vapor quality of water monomers, clusters, droplets, and crystals in the Earth atmosphere. It is demonstrated that the integral intensity of absorption of infrared radiation for the initial series of water clusters does not increase with their size and stays smaller than the respective characteristic for free water molecule. The anti-greenhouse effect developed by clusters is defined as the difference between the greenhouse effects exhibited by free molecules of water making up the clusters and by the clusters proper. The value of anti-greenhouse effect is $3.6$ K, and the greenhouse effect of atmospheric water clusters is estimated at $1.1$ K.