Code used in: Smeed et al 2026 Overturning circulation of the North Atlantic subtropical gyre computed in density coordinates at 26°N

These Matlab functions were used to obtain the results and plot the figures in the following msnuscript submitted for publication to Geophysical Research Letters in January 2026: Overturning circulation of the North Atlantic subtropical gyre computed in densitycoordinates at 26°ND.A. Smeed1, W.E. Johns2, R.H. Smith3, T. Petit1, E.L. McDonagh1,4, D. Rayner1, D.L.Volkov3,5, S. Elipot2, J.B. Kajtar1, B.A. King1, Y.L. Firing1 and B.I. Moat11National Oceanography Centre, Southampton, UK.2Rosenstiel School of Marine, Atmospheric, and Earth Science, University of Miami, USA.3Atlantic Oceanographic and Meteorological Laboratory, NOAA, Miami, USA4NORCE, Norwegian Research Centre, Bjerknes Centre for Climate Research, Bergen, Norway5Cooperative Institute for Marine and Atmospheric Studies, University of Miami, Miami, USA