Document Type


Publication Date




Publication Title

Journal of Geophysical Research: Oceans








Currents and temperatures were measured using Pegasus current profilers across Northwest Providence and Santaren Channels and across the Florida Current off Cay Sal Bank during four cruises from November 1990 to September 1991. On average, Northwest Providence (1.2 Sv) and Santaren (1.8 Sv) contribute about 3 Sv to the total Florida Current transport farther north (e.g., 27°N). Partitioning of transport into temperature layers shows that about one-half of this transport is of ''18°C'' water (17°C-19.5°C); this can account for all of the ''excess'' 18°C water observed in previous experiments. This excess is thought to be injected into the 18°C layer in its region of formation in the northwestern North Atlantic Ocean. Due to its large thickness, potential vorticities in this layer in its area of formation are very low. In our data, lowest potential vorticities in this layer are found on the northern end of Northwest Providence Channel and are comparable to those observed on the eastern side of the Florida Current at 27°N. On average a low-potential-vorticity 18°C layer was not found in the Florida Current off Cay Sal Bank.


© 1995 by the American Geophysical Union.

"AGU allows authors to deposit their journal articles if the version is the final published citable version of record, the AGU copyright statement is clearly visible on the posting, and the posting is made 6 months after official publication by the AGU."

Original Publication Citation

Leaman, K. D., Vertes, P. S., Atkinson, L. P., Lee, T. N., Hamilton, P., & Waddell, E. (1995). Transport, potential vorticity, and current/temperature structure across Northwest Providence and Santaren Channels and the Florida Current off Cay Sal Bank. Journal of Geophysical Research: Oceans, 100(C5), 8561-8569. doi:10.1029/94jc01436


0000-0003-2919-100X (Atkinson)

Included in

Oceanography Commons


Article Location