水すい圏けん科か学がく

Meanings

1

noun

hydrospheric sciences

Academic term for the interdisciplinary study of the hydrosphere, including oceanography, hydrology, and related fields.

study, learning, science

海かい洋よう学がく
Oceanography; a major subfield of hydrospheric sciences focusing specifically on oceans.
陸りく水すい学がく
Limnology; the study of inland waters, another component of hydrospheric sciences.

Compound of 水圏 (hydrosphere) and 科学 (science). The exact historical derivation is uncertain, but the term follows standard academic naming patterns.