Abstract The coefficient of the Brutsaert-Nieber equation cannot provide information on streamflow dynamics independently because its value depends on the exponent. One way to address this challenge is to compute the coefficient after fixing the exponent, which may involve fitting errors. A recent study has therefore adopted a method to decorrelate the coefficient from the exponent. Here, I argue that the decorrelation method does not dissociate the Brutsaert-Nieber parameters or make them independent of each other. Analysis of real and synthetic recession curves suggests that for a wide variety of scenarios the fixed exponent method is preferable to the decorrelation method.

中文翻译：

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去相关不是解离：没有办法在水流衰退分析中完全解耦 Brutsaert-Nieber 参数

摘要 Brutsaert-Nieber 方程的系数不能独立提供河流动力学信息，因为它的值取决于指数。解决这一挑战的一种方法是在固定指数后计算系数，这可能涉及拟合误差。因此，最近的一项研究采用了一种将系数与指数去相关的方法。在这里，我认为去相关方法不会分离 Brutsaert-Nieber 参数或使它们相互独立。对真实和合成衰退曲线的分析表明，对于各种场景，固定指数方法比去相关方法更可取。