Annual evaporation exceeds evapotranspiration by 33%: implications for water management.
Evaporation from water surfaces is about 33% more than evapotranspiration from vegetation-covered land with enough water. The amount of friction velocity matches well with other studies, suggesting the initial estimate is accurate. The geostrophic wind is assumed to be the same over both surfaces. Around 5 to 10% of the sun's energy reaching vegetation-covered land is transferred as sensible heat.