Instead , a series of power laws empirically representing the variation of the square root of MSD versus downwind distance are commonly used in studying the dispersion phenomenon .
In some atmospheric dispersion models , the relationship between MSD and time t is not linear .
A series of power laws empirically representing the variation of the square root of MSD versus downwind distance are commonly used in studying the dispersion phenomenon .
In some atmospheric dispersion models , the relationship between MSD and time t is not linear .