| Cite this article: | 王怡宁,丁佳楠,吕海深,等.基于水面蒸发量及气温的潜水蒸发量计算模型研究[J].灌溉排水学报,0,():-. |
| Wang Yining,Ding Jianan,Lv Haishen,et al.基于水面蒸发量及气温的潜水蒸发量计算模型研究[J].灌溉排水学报,0,():-. |
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| Research on Calculation Model of Submersible Evaporation Based on Surface Evaporation and Air Temperature Factors |
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Wang Yining1, Ding Jianan2, Lv Haishen2, Song Cuiping3, Zhou Chao4, Liu Zhumei2, Lu Yunyan2
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1.Nanjing Hydraulic Research Institute;2.Hohai University;3.Jiangsu Water Conservancy Survey and Design Research Institute Co., Ltd;4..Anhui and Huaihe River Institute of Hydraulic Research/Anhui Province Key Laboratory of Water Conservancy and Water Resources/Wudaogou Hydrological and Water Resources Experimental Station, Bengbu
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| Abstract: |
| 【Objective】In order to explore the influence of different meteorological factors on phreatic evaporation, 【Method】The phreatic evaporation data was measured by the lysimeter with a diameter of 0.3 m2 at the Wudaogou Hydrological Experiment Station, and the meteorological data was measured by the related instruments in the meteorological observation field. Calculation model of bare ground submersible evaporation and water surface evaporation, single meteorological factor and double meteorological factor of air temperature based on buried depth factor.【Results】 The results show that the R2 of each calculation model for Shajiang black soil is about 0.88, the average absolute error (MAE) is 1.50 mm/ten, the root mean square error (RMSE) is 2.30 mm/ten; the R2 of each calculation model for the yellow fluvo-aquic soil is 0.92, The average absolute error (MAE) is 1.94 mm/ten, and the root mean square error (RMSE) is 2.80 mm/ten, both of which have high accuracy, and the accuracy of the fitting models of the yellow fluvo-aquic soil is higher than that of the sand ginger black soil.The R2 of the single meteorological factor calculation model is 0.92, the average absolute error (MAE) is 1.80 mm/ten, and the root mean square error (RMSE) is 2.60 mm/ten; the R2 of the dual meteorological factor calculation model is 0.94, and the average absolute error (MAE) ) Is 1.40 mm/ten, and the root mean square error (RMSE) is 2.05 mm/ten. The fitting effect of dual meteorological factors is higher than that of single meteorological factor. The average absolute error (MAE) of the two soil multi-weather factor composite models are 2.21 mm/ten and 2.91 mm/ten, and the root mean square error (RMSE) are 3.31 mm/ten and 3.93 mm/ten, respectively. The estimation accuracy is better. excellent.【Conclusion】Diving depth, water surface evaporation and air temperature have significant effects on Submersible evaporation, and suitable calculation models can be selected according to different situations. |
| Key words: Submersible evaporation;Water surface evaporation;Temperature;Buried depth;Bare ground |
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