Early history
Humans first acquired knowledge of the waves and currents of the seas and oceans in pre-historic times. Observations on See more

The study of oceanography is divided into these five branches:
Biological oceanography
Biological oceanography investigates the ecology and biology of marine organisms in the context of the physical, chemical and geological … See more

• Biogeochemistry – Study of chemical cycles of the earth that are either driven by or influence biological activity
• Biogeography – Study of distribution of species See more

• NASA Jet Propulsion Laboratory – Physical Oceanography Distributed Active Archive Center (PO.DAAC). A data centre responsible for archiving and distributing data about the physical state of the ocean.
• Scripps Institution of Oceanography. One of the world's … See more

The earliest international organizations of oceanography were founded at the turn of the 20th century, starting with the International Council for the Exploration of the Sea created in 1902, followed in 1919 by the Mediterranean Science Commission. … See more

• Oceans portal
• Underwater diving portal
• Anoxic event – Historic oxygen depletion events in Earth's oceans
• Anoxic waters – Areas of sea water, fresh water, or groundwater that are depleted of dissolved … See more