A 3-D hydrodynamic model, coupled with a Lagrangian drift model, was applied to simulate the dispersion of derived ¹³⁷Cs activity concentration in case of a nuclear accident in Akkuyu Nuclear Power Plant (NPP) located at the East Mediterranean Sea. The simulated near surface circulation presented a good skill in reproducing observed patterns from satellite altimetry data and existing literature. The dispersion pattern of dissolved ¹³⁷Cs was investigated on an annual and seasonal basis. In all seasons the dominant pathway of released ¹³⁷Cs had a westward direction, following the prevailing currents. The different dispersal patterns are mainly related to the intensity of the Asia Minor Current and the local circulation in the vicinity of the Akkuyu NPP. ¹³⁷Cs was transported during the first month to the neighboring coasts of the NPP, while after the fourth month the distribution of the plume was extended in areas of the Eastern Aegean Sea (including East Crete and Rhodes Islands), as well as at the Antalya coastline. After the 3rd month, the plume reaches areas in the Eastern Aegean Sea (including the Crete Island and Cyclades plateau) while after the 6th month it is spread gradually to the Ionian Sea and Levantine basin. At the end of the annual simulation, the plume appears significantly diluted, with relatively high concentrations found still in Dodecanese Islands and along the Aegean Turkish coast. The ¹³⁷Cs activity concentration starts to decline after the 9th month in most of the studied areas at the East Mediterranean Sea. The particulate ¹³⁷Cs was diminished within a month from the accident, due to sinking and its fast transformation to dissolved, showing a similar westward dispersion pattern.

在位于东地中海的阿库尤核电站 (NPP) 发生核事故时，应用 3-D 流体动力学模型和拉格朗日漂移模型来模拟派生的¹³⁷ Cs 活度浓度的分散。模拟的近地表环流在从卫星测高数据和现有文献中再现观察到的模式方面表现出良好的技能。在年度和季节性基础上研究了溶解的¹³⁷ Cs的分散模式。在所有季节中，释放的¹³⁷ Cs的主要路径都有一个向西的方向，跟随盛行的潮流。不同的扩散模式主要与小亚细流强度和阿库尤核电站附近的局地环流有关。¹³⁷ Cs 在第一个月被运送到核电厂的邻近海岸，而在第四个月之后，羽流的分布范围扩大到东爱琴海地区（包括东克里特岛和罗得岛）以及安塔利亚海岸线。第 3 个月后，羽流到达爱琴海东部地区（包括克里特岛和基克拉泽斯高原），而在第 6 个月后，它逐渐扩散到爱奥尼亚海和黎凡特盆地。在年度模拟结束时，羽流似乎显着稀释，在多德卡尼斯群岛和爱琴海土耳其海岸沿线仍发现相对较高的浓度。在¹³⁷在东地中海的大部分研究区域，Cs 活性浓度在第 9 个月后开始下降。由于下沉和快速转变为溶解，¹³⁷ Cs颗粒在事故发生后的一个月内减少，显示出类似的向西扩散模式。