Department of Environmental Science and the Bolin Centre for Climate Research, Stockholm University, 10691, Stockholm, Sweden.
Sci Rep. 2021 Aug 12;11(1):16418. doi: 10.1038/s41598-021-96010-6.
Log normal-like concentration distributions are ubiquitously observed in the environment. However, the mechanistic origins are not well understood. In this paper, we show that first order exponential kinetics onsets log-normal concentration distributions, under certain assumptions. Given the ubiquity of exponential kinetics, e.g., source and sink processes, this model suggests an explanation for the frequent observation in the environment, and elsewhere. We compare this model to other mechanisms affecting concentration distributions, e.g., source mixing. Finally, we discuss possible implications for data analysis and modelling, e.g., log-normal rates and fluxes.
对数正态样浓度分布在环境中普遍存在。然而，其机械起源尚不清楚。在本文中，我们表明，在某些假设下，一级指数动力学起始于对数正态浓度分布。鉴于指数动力学的普遍性，例如源和汇过程，该模型为环境中频繁观察到的现象以及其他地方提供了一种解释。我们将该模型与影响浓度分布的其他机制进行了比较，例如源混合。最后，我们讨论了对数正态率和通量等数据分析和建模的可能影响。
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