Articles | Volume 17, issue 1
Ocean Sci., 17, 285–299, 2021
https://doi.org/10.5194/os-17-285-2021
Ocean Sci., 17, 285–299, 2021
https://doi.org/10.5194/os-17-285-2021

Research article 15 Feb 2021

Research article | 15 Feb 2021

A 30-year reconstruction of the Atlantic meridional overturning circulation shows no decline

Emma L. Worthington et al.

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Cited articles

Baehr, J., Haak, H., Alderson, S., Cunningham, S. A., Jungclaus, J. H., and Marotzke, J.: Timely Detection of Changes in the Meridional Overturning Circulation at 26 N in the Atlantic, J. Climate, 20, 5827–5841, https://doi.org/10.1175/2007JCLI1686.1, 2007. a
Baehr, J., Keller, K., and Marotzke, J.: Detecting Potential Changes in the Meridional Overturning Circulation at 26 N in the Atlantic, Clim. Change, 91, 11–27, https://doi.org/10.1007/s10584-006-9153-z, 2008. a, b
Baringer, M. O. and Larsen, J. C.: Sixteen Years of Florida Current Transport at 27 N, Geophys. Res. Lett., 28, 3179–3182, https://doi.org/10.1029/2001GL013246, 2001. a
Boyer, T. P., Antonov, J. I., Baranova, O. K., Coleman, C., Garcia, H. E., Grodsky, A., Johnson, D. R., Locarnini, R., Mishonov, R. A., O'Brien, T., Paver, C., Reagan, J., Seidov, D., Smolyar, I. V., and Zweng, M.: NCEI Standard Product: World Ocean Database (WOD), NOAA National Centers for Environmental Information, Dataset, available at: https://www.nodc.noaa.gov/OC5/WOD/pr_wod.html (last access: 16 April 2020), 2018. a, b
Bryden, H. L., Longworth, H. R., and Cunningham, S. A.: Slowing of the Atlantic Meridional Overturning Circulation at 25 N, Nature, 438, 655–657, https://doi.org/10.1038/nature04385, 2005. a, b, c, d, e, f, g, h, i, j, k, l, m, n
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The RAPID array has observed the Atlantic meridional overturning circulation (AMOC) since 2004, but the AMOC was directly calculated only five times from 1957–2004. Here we create a statistical regression model from RAPID data, relating AMOC changes to density changes within the different water masses at 26°  N, and apply it to historical hydrographic data. The resulting 1981–2016 record shows that the AMOC from 2008–2012 was its weakest since the mid-1980s, but it shows no overall decline.