Meteorologists define convergence as a wind field measure of the rate of the net addition of mass into a volume above a given point. In other words, convergence is an accumulation or build up of air. Convergence can be a result of directional confluence, or when air flows come together. ![[DirectionalConfuence.jpg]] Convergence can also be a result of rapidly decreasing wind speed, as the air "piles up". ![[SpeedConvergence.jpg]] Convergence and divergence are important mechanisms to weather processes at all scales and at all levels in the atmosphere. Glider pilots specifically seek areas of well-organized, low-level convergence that produce upward vertical motion and useable lift. The processes involved in this form of convergence fall under [[Mesoscale Convergence]] and [[Synoptic Convergence]].