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首页> 外文期刊>Journal of geophysical research. Earth Surface: JGR >Comment on 'Distinct Thresholds for the Initiation and Cessation of Aeolian Saltation From Field Measurements' by Raleigh L. Martin and Jasper F. Kok: Alternative Interpretation of Measured Thresholds as Two Distinct Cessation Thresholds
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Comment on 'Distinct Thresholds for the Initiation and Cessation of Aeolian Saltation From Field Measurements' by Raleigh L. Martin and Jasper F. Kok: Alternative Interpretation of Measured Thresholds as Two Distinct Cessation Thresholds

机译：罗利L. Martin和Jasper F. Kok评论“从场测量开始和野外测量的遗传率的独特阈值”：作为两个不同的停止阈值的替代解释

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Martin and Kok (2018a, ) measured two distinct aeolian saltation transport thresholds: a larger threshold below which continuous saltation transport becomes intermittent and a smaller threshold below which intermittent saltation transport ceases. In the spirit of Bagnold, they interpreted the former threshold as the fluid threshold, associated with transport initiation, and the latter threshold as the impact threshold, associated with transport cessation. Here I describe and support an alternative interpretation of these two thresholds as two distinct cessation thresholds associated with splash entrainment and, respectively, with compensating energy losses of rebounding particles. This interpretation was recently proposed by Pahtz and Duran (2018a, ). To resolve this controversy, further field studies are needed.
机译：Martin和Kok（2018A，）测量了两个不同的Aeolian盐化运输阈值：下面的阈值下降，连续盐化转运变得间断，低于间歇性盐化运输停止的较小阈值。 本着八角形的精神，将前阈值解释为与运输开始相关的流体阈值，后者阈值作为撞击阈值，与运输停止相关。 这里，我描述并支持这两个阈值的替代解释，作为与飞溅夹带相关的两个不同的停止阈值，以及补偿反弹粒子的能量损失。 最近由Pahtz和Duran（2018A）提出了这种解释（2018年）。 为了解决这一争议，需要进一步的实地研究。

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