lsopycnal geostrophic flow is postulated within the Antarctic Circumpolar Current. The major consequence of this is that a strong source (at least 3 × 106m3sec-1) of water with Antarctic Intermediate Water densities (σ0 = 27.2 to 27.3) and cold, fresh Antarctic Zone characteristics must occur in the southeast Pacific Ocean. This is consistent with the formation of isohaline thermoclines in the Subantarctic Zone of the southeast Pacific....
Molinelli, Eugene J.. 1981. "The Antarctic influence on Antarctic Intermediate Water." Journal of Marine Research 39, (2). https://elischolar.library.yale.edu/journal_of_marine_research/1544