Oceanography (also called marine science) is the study of the deep sea and shallow coastal oceans: the movement and composition of their waters, their origin, their plant and animal inhabitants, and their interactions with the atmosphere.
Oceanography is multidisciplinary and has several branches. This includes the geology (marine geology), chemistry (marine chemistry), physics (physical oceanography), and biology (marine biology) of the oceans.
About Oceanography and Oceanic Sciences
Oceanography is a subfield of earth sciences. It is related to marine biology, fisheries management, and ocean engineering.