Definition of reservoir. 1 : a place where something is kept in store: such asa : an artificial lake where water is collected and kept in quantity for useb : a part of an apparatus in which a liquid is heldc : supply, store a large reservoir of educated people.
Four types of winter precipitation. While all forms of precipitation start as snow high up in the clouds, there are four primary types that eventually reach the ground: snow, sleet, freezing rain and plain ol' rain. Snow occurs when the atmosphere is cold all the way from the clouds to down here at the surface.
It has a greater density and macro-structure. Sleet, snow and hail are all forms of solid water precipitation. The differences are in how they are formed in the atmosphere. Snow is a delicate crystalline structure formed by the nucleation of water into small individual units of frozen water. These fall relatively gently to the ground due to their individual low unit density and mass. Sleet is directly frozen rain, and is essentially the same mass as a raindrop per unit.