Measuring the AMOC at 26°N: the record so far and the potential for real-time data in the future

David Smeed1, Gerard D McCarthy1, Darren Rayner1, Ben I Moat1, Eleanor Frajka-Williams2, William E Johns3, Christopher S Meinen4, Molly O'Neil Baringer5 and Aurélie Duchez1, (1)National Oceanography Centre, Southampton, United Kingdom, (2)University of Southampton, Southampton, United Kingdom, (3)Rosenstiel School for Marine and Atmospheric Sciences, University of Miami, Miami, FL, United States, (4)NOAA, Maimi, FL, United States, (5)NOAA/AOML/PHOD, Miami, FL, United States
Abstract:
In December 2015 the RAPID-MOCHA-WBTS time-series of overturning at 26°N will be extended to cover the time period up to October 2015, 11.5 years in total. New results will be presented for the overturning stream function and its component parts.

Following the large downturn of the AMOC observed by the 26°N array in 2009-2010 a number of studies have suggested that real-time data from the 26°N array could have value for seasonal prediction of North Atlantic climate. The development of a telemetry system for the 26°N array is being tested. When fully implemented this will allow delivery of near real-time data. In this study we explore how best to make use of the new telemetry capability. It will not be possible to retrieve data from the entire array and we consider with what accuracy will we be able to evaluate the AMOC at 26°N from the limited data available from telemetry.

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