| | |
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| | | * @return |
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| | | */ |
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| | | public static Double ET0(Double kc, Double maxT, Double minT, Double zenithRadiation){ |
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| | | Expression expression = new ExpressionBuilder("x * (0.0023 * (((a + b) / 2) + 17.8) * ((a + b)^(1/2)) * c * 0.408)") |
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| | | Expression expression = new ExpressionBuilder("x * (0.0023 * (((a + b) / 2) + 17.8) * ((a - b)^(1/2)) * c * 0.408)") |
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| | | .variables("x", "a", "b", "c") |
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| | | .build(); |
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| | | // 设置变量值 |
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| | |
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| | | System.out.println("天顶辐射:" + zenithRadiation); |
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| | | |
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| | | Double et0 = ET0(kc, maxT, minT, zenithRadiation); |
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| | | System.out.println(et0); |
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| | | System.out.println("蒸散量:" + et0); |
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| | | } |
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| | | |
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| | | } |
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