Towards a Flux-Partitioning Procedure Based on the Direct Use of High-Frequency Eddy-Covariance Data
Towards a Flux-Partitioning Procedure Based on the Direct Use of High-Frequency Eddy-Covariance Data
复制标题
基于直接使用高频涡协方差数据的通量划分程序
DOI：
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发表时间：
2014
影响因子：
4.3
通讯作者：
D. Vitale
中科院分区：
文献类型：
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作者：
L. Palatella;G. Rana;D. Vitale
Scanlon和Sahu（Water Resour Res 44（10）：W10418，2008）提出了一种有趣的方法，直接使用高频涡动协方差测量来估计同化，呼吸，蒸发和蒸腾。在本说明中，我们批判性地修改这种方法，特别是使用笛卡尔的符号规则，我们表明，一个分支的解决方案可以直接忽略，减少分析的复杂性的程序。我们还讨论了该方法的结果相对于输入参数的稳定性，特别是水分利用效率。
Scanlon and Sahu (Water Resour Res 44(10):W10418, 2008) proposed an interesting method to estimate assimilation, respiration, evaporation and transpiration directly using high-frequency eddy-covariance measurements. In this note we critically revise this method and, in particular, using the Descartes’ rule of sign, we show that one branch of solutions can be directly neglected reducing the analytical complexity of the procedure. We also discuss the stability of the results of the method with respect to the input parameters, especially to the water-use efficiency.