Oke osimiri nke ana kpo Southern Ocean, ma Antarctic Ocean na South Polar Ocean ufodu, bu oke osimiri e kere mgbe a kewasiri-ekewa Osimiri uwa n'ise. O bu osimiri nke ano hiri nne, osimiri nke mbu bula Pacific Ocean na Atlantic Ocean, bu nke e kere la azu. O no na okpuru ala uwa nile, no n'elu Antarctica.