波斯湾和阿拉伯海的表面微塑料动态使用数值建模和CYGNSS卫星估计
Ali Sobhani1, Seyed Mostafa Siadatmousavi1, Ali Mehdinia2
1School of Civil Engineering, Iran University of Science and Technology, Narmak, Tehran, 1684613114, Iran.
Marine environmental research
|September 18, 2024
概括
波斯湾和阿拉伯海的微塑料污染在冬季最高,特别是在阿拉伯海东北部和霍尔木兹海峡. 度受到水密度和风力驱动的电流的影响.
科学领域:
- 海洋污染 海洋污染
- 环境科学环境科学
- 海洋学 海洋学 海洋学
背景情况:
- 微塑料对海洋生态系统构成长期威胁,主要是通过化学吸收和污染物转移到生物体.
- 了解微塑料的积累和分布对于海洋环境管理至关重要.
研究的目的:
- 研究波斯湾和阿拉伯海地表水中的微塑料度的空间和时间分布.
- 确定影响微塑料积累的关键环境因素.
主要方法:
- 2018年和2021年在31个站点使用Neuston网进行现场采样.
- 应用水力动力学模型来模拟微塑料的运输通过电流,潮和风.
- 利用CYGNSS卫星数据,根据海洋表面粗度估计微塑料度.
主要成果:
- 冬季在阿拉伯海东北部观察到的微塑料度最高.
- 积累量从冬天增加到夏天,秋天下降,冬天在阿曼北部再次上升.
- 微塑料度的季节性变化在阿拉伯海和阿曼湾的2.6x10^4到1.8x10^4颗粒/平方公里之间,在波斯湾的2.8x10^4到2.6x10^4颗粒/平方公里之间.
结论:
- 水密度是控制波斯湾微塑料度的主要因素.
- 风速和海面电流是阿拉伯海中微塑料分布的关键驱动因素.
- 对微塑料污染的有效管理策略需要考虑区域海洋学条件和季节性模式.
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