noun
marine science; oceanography
Academic field encompassing the study of oceans, including marine biology, chemistry, geology, and physics.
彼は大学で海洋科学を専攻している。
He is majoring in marine science at university.
海洋学 is a broader term for oceanography, while 海洋科学 often emphasizes the scientific and interdisciplinary aspects.
Compound of 海洋 (ocean) and 科学 (science).