Abstract
The new U.S. Atlantic Meridional Overturning Circulation (AMOC) program, with its international partners, aims to further develop abilities to observe, understand, and simulate the AMOC as well as characterize its potential impacts on climate (see http://www.atlanticmoc.org for program details). Its first workshop included contributions from more than 100 U.S. and international participants on a range of topics, including the current state of the AMOC, its coherence and connectivity, the influence of AMOC on climate and related impacts, and AMOC observing system requirements.Presenters at the meeting described a number of significant, but disparate, AMOC observational efforts currently under way. Of these, only the U.K./U.S. RAPID/MOCHA (Rapid Climate Change/Meridional Overturning Circulation and Heatflux Array) mooring array at 26°N, which spans the basin at full depth, has provided direct measures of the AMOC. Results from this array have revealed significant intra‐annual variability in the heat and mass fluxes at this latitude, causing a reexamination of previous estimates of AMOC changes.
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