Seasonal energy and water balance of a Phragmites australis-dominated wetland in the Republican River basin of south-central Nebraska (USA)

► The seasonal energy and water balance of a Phragmites australis wetland was analyzed. ► Evapotranspiration from the wetland averaged 4.4 mm day−1 (maximum 8.2 mm day−1). ► Net radiation and plant phenology were key drivers of ET and sensible heat flux. ► The Priestley-Taylor method performed well, except during the early growing season. ► The importance of heat storage in the canopy, water, and soil varied by timescale.