Vagn Walfrid Ekman was a Swedish oceanographer born on January 23, 1874, and he passed away on March 15, 1954. He is best known for his work in physical oceanography, particularly for developing the Ekman spiral, a concept that describes how wind-driven currents behave in the ocean. His research significantly advanced the understanding of ocean currents and their impact on marine ecosystems. Ekman also contributed to the study of ocean circulation and the effects of wind on the sea surface. His findings have been influential in various fields, including meteorology and climatology, helping scientists understand the complex interactions between the atmosphere and oceans.