The article discusses the circulation in the Western Mediterranean Sea, emphasizing mesoscale phenomena over seasonal variability. It highlights the importance of remote sensing and current measurements in understanding the region's hydrodynamics. The study references historical data from Ovchinnikov (1966) and recent findings, noting that the Western Basin's circulation is complex and influenced by factors such as deep water formation and mesoscale eddies. The article presents schematic maps and analyzes the circulation of Atlantic-origin water, Levantine intermediate water, and Mediterranean deep water. It describes the anticyclonic gyre in the Western Alboran Sea, the variability of the Eastern Alboran Sea circulation, and the role of mesoscale eddies in the Algerian Basin. The study also discusses the impact of wind and topography on circulation patterns, the formation of deep water in the Gulf of Lions, and the interaction between different water masses. The article concludes that while the circulation in the Western Mediterranean is complex, ongoing research and data collection are essential for a better understanding of the region's hydrodynamics.The article discusses the circulation in the Western Mediterranean Sea, emphasizing mesoscale phenomena over seasonal variability. It highlights the importance of remote sensing and current measurements in understanding the region's hydrodynamics. The study references historical data from Ovchinnikov (1966) and recent findings, noting that the Western Basin's circulation is complex and influenced by factors such as deep water formation and mesoscale eddies. The article presents schematic maps and analyzes the circulation of Atlantic-origin water, Levantine intermediate water, and Mediterranean deep water. It describes the anticyclonic gyre in the Western Alboran Sea, the variability of the Eastern Alboran Sea circulation, and the role of mesoscale eddies in the Algerian Basin. The study also discusses the impact of wind and topography on circulation patterns, the formation of deep water in the Gulf of Lions, and the interaction between different water masses. The article concludes that while the circulation in the Western Mediterranean is complex, ongoing research and data collection are essential for a better understanding of the region's hydrodynamics.