The frequency-dependent ratio of the irradiance absorbed to that incident upon a particular substance. The rate at which snow is accumulated by deposition and sublimation. Can also refer to the rate at which sediments are accumulated on the ocean floor. The term is usually used in connection with glaciers or snow fields.
Acid precipitation includes rain, fog, snow, and dry deposition.
These pollutants come primarily from burning coal and other fossil fuels. Natural interactions within the biosphere can also lead to acid precipitation. A substance undergoing an adiabatic process can only exchange energy with its environment through mechanical work. The amount of advection is related to the gradient of the field in question and the velocity of the wind. Usually refers to transports in the horizontal direction.