The hydrologic cycle has significant changes in state of water from gas to liquid and back to gas and to solid form. This involves energy - changes in thermal energy. Ins Outs Storage Precipitation ET SW in rivers, lakes etc.
Air expands and thus cools.
Plot data for a station. Evaporation Evaporation is the term for vaporization of water from free water surfaces or from bare soil. The combined process of transpiration and evaporation. Transpiration is defined as the loss of water from plants in the form of vapor. Transpiration is dependant on plant type, density of vegetation, growth stage.