Nonstationarity in Intermittent Rainfall: The “Dry Drift”
Nonstationarity in Intermittent Rainfall: The “Dry Drift”
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间歇性降雨的非平稳性：“干燥漂移”
DOI：
10.1175/jhm-d-13-095.1
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发表时间：
2013
影响因子：
3.8
通讯作者：
A. Berne
中科院分区：
文献类型：
--
作者：
M. Schleiss;Sabine Chamoun;A. Berne
间歇性降雨的非平稳性质的一个特殊方面进行了研究。它表现在平均降雨率随着与周围干旱地区的距离而变化。作者称降雨强度和降雨发生过程之间的这种基本联系为“干漂”。利用高分辨率雷达降雨率图和降雨计数据，他们显示了干漂移如何影响间歇性降雨场的结构和变化。他们提供了一个严格的地质统计框架来描述它，并提出了一个扩展的概念，更一般的数量，如（雨）滴大小分布。
A particular aspect of the nonstationary nature of intermittent rainfall is investigated. It manifests itself in the fact that the average rain rate varies with the distance to the surrounding dry areas. The authors call this fundamental link between the rainfall intensity and the rainfall occurrence process the ‘‘dry drift.’’ Using high-resolution radar rain-rate maps and disdrometer data, they show how the dry drift affects the structure and the variability of intermittent rainfall fields. They provide a rigorous geostatistical framework to describe it and propose an extension of the concept to more general quantities like the (rain)drop size distribution.