Definitions for "Evaporation pan"
An open tank used to contain water for measuring the amount of evaporation. The U.S. Weather Bureau class A pan is 4 feet in diameter, 10 inches deep, set up on a timber grillage so that the top rim is about 16 inches from the ground. The water level in the pan during the course of observation is maintained between 2 and 3 inches below the rim.
an open pan of water that is subject to the same climatic conditions as a growing crop, and from which water is evaporated as a result of the climatic conditions experienced
A type of atmometer. It is a pan used in the measurement of the evaporation of water into the atmosphere. The NWS Class A pan is a cylindrical container 48 inches in diameter and 10 inches deep.
Meteorological instrument that is used to measure evaporation rates.