|
|
Evaporation from the water surface
Novotný, Eduard ; Šobr, Miroslav (advisor) ; Šuhájková, Petra (referee)
Evaporation and evapotranspiration are significant components of the hydrological cycle. Accurate measurement or calculation of evaporation is essential for studies of water resource development and management, as well as for efficient crop irrigation in agriculture. Throughout history, many models have been developed to calculate potential evapotranspiration based on various meteorological parameters. The accuracy of these models needs to be determined by comparing them with measured evaporation values obtained from an evaporation pan. In this study, 7 models for calculating potential evapotranspiration or evaporation from a free water surface based on air temperature are compared with evaporation measured by the VYPAR-1200 evaporation pan during the evaporation season 2021 at the Vrchlice meteorological station. The most accurate results were obtained with the models presented by Oudin et al. (2010) and Šuhájková et al. (2019), with RMSE values of 1.061 and 1.105 mm/day and MBE of 0.554 and 0.303 mm/day. Even so, the deviations are quite significant and for more accurate calculation of evaporation for the Vrchlice region, parameterization of these models would be necessary. Key words evaporation, water surface, evaporimeter, meteorological station Vrchlice
|
guest ::
