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基于洵河流域1961～1986年的逐日气象资料和同期径流量资料,采用基于互补相关原理的实际蒸散发模型(AA模型、GG模型、CRAE模型)分别估算该流域的逐日实际蒸散发量。根据水量平衡法的实际蒸散发计算结果对三种模型的原始参数进行调整,并在不同的时间尺度上对三种模型进行了比较,评估了三种实际蒸散发模型的估算能力。结果表明,采用三种模型的原始参数计算出的实际蒸散发量误差较大;调整原始参数后,各模型对年实际蒸散发量的计算精度大为提高,逐月的估算效果也有不同程度改善;参数调整后的AA模型与GG模型的模拟结果相近,优于CRAE模型的模拟效果;年、月尺度的模型模拟效果综合分析表明GG模型在洵河流域的估算效果相对最佳。
Based on the daily meteorological data and the runoff data of the same period from 1961 to 1986 in the Bahe River basin, the actual evapotranspiration of the river basin was estimated using the actual evapotranspiration model (AA model, GG model and CRAE model) based on the complementary correlation principle. The original parameters of the three models were adjusted according to the actual evapotranspiration calculation results of the water balance method. The three models were compared on different time scales to evaluate the estimation ability of the three kinds of real evapotranspiration models. The results show that the error of the actual evapotranspiration calculated by the original parameters of the three models is large. After the adjustment of the original parameters, the accuracy of calculating the actual evapotranspiration of each model is greatly improved, and the estimation effect of the monthly is also improved to some extent . The adjusted AA model is similar to the GG model, which is better than the CRAE model. The comprehensive analysis of the model and simulation results on the monthly and monthly scales shows that the GG model has the best estimation effect in the Bahe River Basin.