论文标题

不稳定的轨迹:下一个难民淹死了多远?

Precarious trajectories: How far away is the next refugee drowning?

论文作者

Khederlarian, Ashod, Grant, Martin, Halkort, Monika, Najem, Sara

论文摘要

在本文中,我们探讨了难民在海中的溺水与地震的发生之间的类比,并专注于表征其空间和时间继承的统计数据的方面。 The former is shown to parallel the spatial distribution of consecutive drowning events with the difference that the latter exhibits short-range behavior below $κ= 4km$ and it is characterized by scale-free statistics, with a critical exponent $δ\approx 0.5$, falling within the range of the earthquakes' $δ= 0.65 \pm 0.20$, as well as finite size scaling beyond $κ= 4km$, while the distribution of events' rates与地震没有相似之处。最后,还恢复了事件的速度分布。 $κ$被怀疑与雷达和移动网络的覆盖范围有关,因此有效地代表了在海上溺水方面拾取信号的能力。

In this paper, we explore the analogy between the refugees' drownings in the sea and the earthquakes' occurrences and focus on the aspect that characterizes the statistics of their spatial and temporal successions. The former is shown to parallel the spatial distribution of consecutive drowning events with the difference that the latter exhibits short-range behavior below $κ= 4km$ and it is characterized by scale-free statistics, with a critical exponent $δ\approx 0.5$, falling within the range of the earthquakes' $δ= 0.65 \pm 0.20$, as well as finite size scaling beyond $κ= 4km$, while the distribution of events' rates exhibits no similarity with that of the earthquakes. Finally, the events' velocity distribution is also recovered. $κ$ is suspected to be related to the radar and mobile network's coverage ranges and thus effectively represents a cut-off in the ability of picking up signals on drownings in the sea.

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