Based on a pair of black and white standard A-type evaporation pans set under the same meteorological conditions, the dynamic characteristics of meteorological elements, water temperature and evaporation of the two pans were observed. The influence of water temperature on the evaporation of the evaporation pan was explored based on the existing 6 evaporation models. The results showed that 1) the designed observation method can be used to study the effect of water temperature on the pan evaporation. The water temperature and evaporation rate between the two pans were significantly different. During the 50-day observation period, the average water temperature difference between the two pans was 0.4°C, and the average daily evaporation difference was 1.1 mm/d. 2) 1°C increase in water temperature difference between black and white pans will produce an evaporation difference of 0.808 mm/d under the same conditions of solar radiation and other meteorological elements. 3) Under the condition of rising water temperature, the estimated value of the classical evaporation model without considering the water temperature would be smaller than the actual observed value, and the error of the estimation will also increase correspondingly.

利用一对设置在相同气象条件下的黑白标准A型蒸发器皿, 观测两者气象要素、水温及蒸发量等动态特征, 并根据现有的6个蒸发模型, 探究水温对器皿蒸发量的影响。结果表明: 1) 设计的观测方法可以用于研究水温对器皿蒸发的影响。黑皿与白皿之间的水温和蒸发速率呈现明显的差异, 在50天的观测期内, 二者平均水温差为0.4°C, 平均日蒸发量差为1.1 mm/d; 2) 在太阳辐射及其他气象要素相同的条件下, 黑白皿水温差每升高1.0°C, 由水温驱动的日蒸发量差异为0.808 mm/(d·°C); 3) 在水温升高条件下, 没有考虑水温的经典蒸发模型的估值小于观测值, 并且估值的误差也有所增加。