Deployment: TTO

The Transient Tracers in the Ocean (TTO) program, North Atlantic Study took place in 1981, with expeditions on R/V Knorr. It was comprised of the following legs, with dates in YYYY-MM-DD format. EXPOCODES correspond to their ID numbers in CCHDO (CLIVAR and Carbon Hydrographic Data Office):

North Atlantic Study, 1981
Leg 1 (Woods Hole to Freeport): P. G. Brewer*, R. T. Williams. 1981-04-01 to 1981-04-13. EXPOCODE 316N19810401.
Leg 2 (Freeport to Bermuda): J. L. Sarmiento*, R. T. Williams. 1981-04-16 to 1981-05-10. EXPOCODE 316N19810416.
Leg 3 ( Bermuda to Azores): L. Armi*. 1981-05-16 to 1981-06-14. EXPOCODE 316N19810516.
Leg 4 (Azores to Glasgow): W. S. Broecker*, C. G. Rooth. 1981-06-19 to 1981-07-17. EXPOCODE 316N19810619.
Leg 5 (Glasglow to Reykjavik): T. Takahashi*, J. H. Swift. 1981-07-21 to 1981-08-14. EXPOCODE 316N19810721.
Leg 6 (Reykjavik to St. Johns): W. J. Jenkins*, P. B. Rhines. 1981-08-21 to 1981-09-17. EXPOCODE 316N19810821.
Leg 7 (St. Johns to Woods Hole): P. G. Brewer*, W. M. Smethie. 1981-09-23 to 1981-10-19. EXPOCODE 316N19810923.

More information can be found in the following publication:
Brewer, P.G., Sarmiento, J.L., & Smethie, W.M. (1985). The Transient Tracers in the Ocean (TTO) program: The North Atlantic Study, 1981; The Tropical Atlantic Study, 1983. Journal of Geophysical Research, 90, 6903-6905. DOI: 10.1029/JC090IC04P06903

Additional cruise information and data are also available from CCHDO at https://cchdo.ucsd.edu/search?q=North%20Atlantic%20Study