• Journal of Natural Resources
  • Vol. 35, Issue 6, 1472 (2020)
Ke-li LI and Xin ZHANG*
Author Affiliations
  • College of Water Resources and Architectural Engineering, Northwest Agriculture and Forestry University, Yangling 712100, Shaanxi, China
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    DOI: 10.31497/zrzyxb.20200618 Cite this Article
    Ke-li LI, Xin ZHANG. Calculation of reference crop evapotranspiration in Shaanxi province based on ANFIS[J]. Journal of Natural Resources, 2020, 35(6): 1472 Copy Citation Text show less
    Diagram showing ANFIS model structure
    Fig. 2. Diagram showing ANFIS model structure
    站点纬度/(°)经度/(°)海拔
    高度/m
    平均值(1960—2016年)
    Tmax/℃Tmin/℃Tmean/℃n/hRH/%u2/(m·s-1)
    陕南安康32.72109.03290.821.0811.9416.514.6773.380.98
    汉中33.07107.03509.519.4611.1815.324.2978.930.81
    关中华县34.52109.73341.519.778.3114.045.4672.851.18
    太白34.03107.321543.614.722.838.785.4670.581.72
    陕北延安36.58109.451180.517.424.4210.926.8459.981.30
    榆林38.27109.781157.015.692.429.057.6654.901.69
    Table 1. Location of meteorological sites and mean value of meteorological factors
    模型气象因子R2RMSE/(mm·d)MRE/%
    安康汉中华县太白延安榆林安康汉中华县太白延安榆林安康汉中华县太白延安榆林
    ANFIS 1TmaxTmin0.9340.9250.8650.8530.9030.8840.4260.4260.6660.5620.5390.72813.31213.03724.71122.91715.01020.559
    ANFIS 2TmaxTminn0.9810.9890.9550.9620.9560.9210.2230.1610.3630.2810.3600.6098.4346.12313.85013.01010.71616.644
    ANFIS 3TmaxTminRH0.9480.9350.9190.9210.9460.9410.3750.4180.5110.4970.4000.48910.83812.20816.73318.44212.13512.140
    ANFIS 4TmaxTminu20.9440.9270.8950.9020.9350.9030.3910.4290.570.4370.4500.67711.17012.74318.79914.35912.75518.910
    ANFIS 5TmaxTminnu20.9900.9960.980.9730.9770.9720.1660.0930.2370.3030.2740.3495.5913.5148.55311.5898.5869.087
    ANFIS 6TmaxTminRHn0.9910.9920.9840.9800.9820.9590.1560.1340.2220.2240.2380.4415.7625.2107.7628.1997.81712.945
    ANFIS 7TmaxTminRHu20.9580.9380.9310.9370.9670.9660.3400.4110.4580.3620.3120.3698.66811.33613.58912.2217.9319.148
    ANFIS 8TmaxTminRHnu20.9980.9990.9950.9890.9970.9950.0770.0580.1130.1600.1060.1412.7842.1684.7776.2313.4564.633
    Table 2. Accuracy of ANFIS model under different meteorological factors
    模型气象因子R2RMSE/(mm·d)MRE/%
    安康汉中华县太白延安榆林安康汉中华县太白延安榆林安康汉中华县太白延安榆林
    ANFIS 1TmaxTmin0.9340.9250.8650.8530.9030.8840.4260.4260.6660.5620.5390.72813.31213.03724.71122.91715.01020.559
    HS0.9160.9250.8840.8490.8480.8450.8370.7500.7390.8000.8070.77028.93531.46325.93527.28926.60024.194
    ANFIS 2TmaxTminn0.9810.9890.9550.9620.9560.9210.2230.1610.3630.2810.3600.6098.4346.12313.85013.01010.71616.644
    Makkink0.9480.9600.9220.9430.9290.8850.6320.5310.4460.4630.7371.02721.40520.40023.33817.93121.51723.193
    Iramk0.9550.9600.9330.9340.9200.8850.4030.3770.5350.3870.5320.78718.76120.59518.86519.38918.12523.800
    Table 3. Comparison of accuracy between ANFIS model and other models
    模型训练站点预报站点R2RMSE/(mm·d)MRE/%
    ANFIS 5安康汉中0.9920.1345.210
    华县0.9800.2439.925
    华县太白0.9820.2228.532
    汉中0.9910.1546.177
    延安榆林0.9570.44013.920
    华县0.9780.26812.243
    ANFIS 6汉中安康0.9940.1263.843
    太白0.9830.2479.995
    太白华县0.9720.45414.965
    安康0.9740.48919.064
    榆林延安0.9720.33010.001
    ANFIS 7安康汉中0.9420.37210.139
    华县0.9250.51014.554
    华县太白0.9400.34710.518
    汉中0.9300.40611.153
    延安榆林0.9600.41310.146
    华县0.9290.49214.48
    ANFIS 8汉中安康0.9970.0952.890
    太白0.9940.1415.545
    太白华县0.9900.2528.885
    安康0.9920.28911.182
    榆林延安0.9950.1254.241
    Table 4. Portability results of ANFIS models between different sites in Shaanxi province
    Ke-li LI, Xin ZHANG. Calculation of reference crop evapotranspiration in Shaanxi province based on ANFIS[J]. Journal of Natural Resources, 2020, 35(6): 1472
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