Water temperature and salinity measurements from most of the 14 basins off southern California, when compared with older data, show no detectable changes. The water in each basin is nearly isothermal and isohaline from the bottom to near the sill depth....
Emery, K. O.. 1954. "Source of water in basins off southern California." Journal of Marine Research 13, (1). https://elischolar.library.yale.edu/journal_of_marine_research/800