水系连通变异下荆南三口河系水文干旱识别与特征分析
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代稳, 吕殿青, 李景保, 王金凤, 赵增友
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Identification of hydrologic drought characteristics under water system connectivity variation in river system of three outlets of Jingjiang river
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Wen DAI, Dianqing LU, Jingbao LI, Jinfeng WANG, Zengyou ZHAO
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| 表3 Copula函数参数及拟合优度评价指标值 |
| Tab. 3 Copula function parameters and values of goodness of fit evaluation index |
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| 水文站点 | 函数类型 | 参数θ | RMSE | AIC | Bias | | 新江口 | ClaytonCopula | 4.7530 | 0.1495 | -103.6713 | 62.8178 | | Gumbel-HougaardCopula | 0.1840 | 0.1504 | -103.3249 | 63.2674 | | FrankCopula | 8.3250 | 0.1562 | -101.1413 | 65.7073 | | Ali-Mikhail-HaqCopula | 361.9520 | 0.1576 | -100.6264 | 66.2962 | | 沙道观 | ClaytonCopula | 3.000 | 0.0425 | -176.2557 | 17.8781 | | Gumbel-HougaardCopula | 0.1610 | 0.0439 | -174.3854 | 18.4670 | | FrankCopula | 5.4890 | 0.0434 | -175.0464 | 18.2567 | | Ali-Mikhail-HaqCopula | 999.9990 | 0.0948 | -129.9588 | 39.8787 | | 弥陀寺 | ClaytonCopula | 2.245 | 0.0159 | -232.9932 | 6.6885 | | Gumbel-HougaardCopula | 0.1850 | 0.0161 | -232.2718 | 6.7726 | | FrankCopula | 3.7490 | 0.0172 | -228.4579 | 7.2354 | | Ali-Mikhail-HaqCopula | 53.2650 | 0.1301 | -111.6923 | 54.7280 | | 康家岗 | ClaytonCopula | 1.9013 | 0.0249 | -207.1084 | 10.4745 | | Gumbel-HougaardCopula | 0.2020 | 0.0308 | -194.8370 | 12.9564 | | FrankCopula | 3.7050 | 0.0324 | -191.9145 | 13.6294 | | Ali-Mikhail-HaqCopula | 999.9990 | 0.0434 | -175.0464 | 18.2567 | | 管家铺 | ClaytonCopula | 1.3080 | 0.0180 | -225.8344 | 7.5719 | | Gumbel-HougaardCopula | 0.1620 | 0.0196 | -220.9201 | 8.2450 | | FrankCopula | 1.9320 | 0.0185 | -224.2532 | 7.7822 | | Ali-Mikhail-HaqCopula | 419.3740 | 0.1351 | -109.5160 | 56.8313 |
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