Exploring submesoscale eddies in the southern Caspian sea: A focus on rudsar and Sefidrud regions

IF 2.3 3区 地球科学 Q2 OCEANOGRAPHY
Amirpouya Bakhtiari , Ehsan Shad , Seyed Mostafa Siadatmousavi
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Abstract

Understanding the circulation patterns, identifying locations for eddy generation, and monitoring eddy behaviors are all areas of interests for different water bodies. This study focused on submesoscale eddies in the southern Caspian Sea, specifically close to Rudsar and Sefidrud, due to their distinct form and high turbidity. The high-resolution FVCOM model was utilized to identify high turbidity locations for a period from 2010 to 2014. The results of the two selected locations were explored individually using various techniques. Also, the obtained MODIS satellite images were compared to the daily averaged current results. The findings showed distinct turbid current patterns, and most of the eddies were classified as submesoscale. The alterations in shoreline orientation and wind direction were identified as the two most significant factors affecting this highly turbid area, with river discharge having a significant effect on eddy development close to the Sefidrud delta. The detected eddies at Rudsar in 2013 were found to be more diverse than those at the Sefidrud delta. The circulation and eddy patterns of these locations were prepared. The findings really emphasize how crucial it is to look into the small-scale circulations and eddies along the coastal areas of the southern Caspian Sea. These results offer valuable insights into the generation and behavior of these eddies, particularly when influenced by morphological changes, local currents, and various other factors.

探索里海南部的次中尺度漩涡:聚焦鲁德萨和塞菲德鲁德地区
了解环流模式、确定漩涡产生的位置以及监测漩涡行为都是不同水体感兴趣的领域。本研究重点关注里海南部的次中尺度漩涡,特别是靠近鲁德萨尔和塞菲德鲁德的漩涡,因为这些漩涡形态独特,浊度较高。利用高分辨率 FVCOM 模型确定了 2010 年至 2014 年期间的高浊度地点。利用各种技术对两个选定地点的结果进行了逐一探讨。此外,还将获得的 MODIS 卫星图像与每日平均水流结果进行了比较。研究结果显示了明显的浊流模式,大多数漩涡被归类为亚中尺度。海岸线方向和风向的变化被认为是影响这一高湍流区的两个最重要因素,而河流排水量对靠近塞菲德鲁德三角洲的漩涡发展有显著影响。2013 年在 Rudsar 发现的漩涡比在 Sefidrud 三角洲发现的漩涡更加多样化。对这些地点的环流和漩涡模式进行了编制。这些发现真正强调了研究里海南部沿岸地区小尺度环流和漩涡的重要性。这些结果为了解这些漩涡的产生和行为,特别是受形态变化、当地海流和其他各种因素的影响提供了宝贵的见解。
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来源期刊
CiteScore
4.60
自引率
4.20%
发文量
144
审稿时长
18.3 weeks
期刊介绍: Deep-Sea Research Part I: Oceanographic Research Papers is devoted to the publication of the results of original scientific research, including theoretical work of evident oceanographic applicability; and the solution of instrumental or methodological problems with evidence of successful use. The journal is distinguished by its interdisciplinary nature and its breadth, covering the geological, physical, chemical and biological aspects of the ocean and its boundaries with the sea floor and the atmosphere. In addition to regular "Research Papers" and "Instruments and Methods" papers, briefer communications may be published as "Notes". Supplemental matter, such as extensive data tables or graphs and multimedia content, may be published as electronic appendices.
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