Spatially dense observations in consecutive years in a region within about 50 km of the continental shelf show a complex structure of southern water undergoing dilution by mixing as it flows northward. An eddy a few tens of km in diameter appears to be a major contributor to the mixing process. Marked differences are seen in structure and flow between the two years.
Wickham, J. B.. 1975. "Observations of the California countercurrent." Journal of Marine Research 33, (3). https://elischolar.library.yale.edu/journal_of_marine_research/1324