noun
seabed exploration; submarine prospecting
Technical and general term for surveying, probing, or prospecting the ocean floor, often for scientific, resource, or engineering purposes.
海底探査によって新しい鉱物資源が発見された。
New mineral resources were discovered through seabed exploration.
この海域では海底探査が行われている。
Seabed exploration is being conducted in this sea area.
Compound of 海底 (seabed) + 探査 (exploration, survey). The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning.