海洋 かいよう気象 きしょう だいじゃありませんでした
kaiyōkishō daija arimasendeshita

Noun
Desu Copula

The polite, past negative form of 海洋気象台

1. Was not a meteorological station for the ocean.; Was not an oceanic weather station.

Past/Perfective
Negative
Polite
Terminal Form