A 10-member ensemble simulation using the NASA GISS-E2-1-G climate model shows a clear bifurcation in the Atlantic Meridional Overturning Circulation (AMOC) strength under the SSP2-4.5 future scenario, leading to 8 stable AMOC-on and 2 stable AMOC-off climate states after 400 years of integration, despite identical forcing of each ensemble member.

May 11, 2017 · The model runs with the lowest mesoscale diffusivity (K = 300 m 2 s −1 and the two exponential profiles) have the strongest overturning stream function (ψ AMOC = 27 Sv (sverdrup, 10 6 m 3 /s) for the GISS model and 13.6 Sv for the Massachusetts Institute of Technology (MIT) model).

Apr 4, 2022 · The central role played by the ocean's Atlantic Meridional Overturning Circulation (AMOC) in the uptake and sequestration of transient tracers is studied in a series of experiments with the Goddard Institute for Space Studies and Massachusetts Institute of Technology ocean circulation models.

A 10-member ensemble simulation using the NASA GISS-E2-1-G climate model shows a clear bifurcation in the Atlantic Meridional Overturning Circulation (AMOC) strength under the SSP2-4.5 future scenario, leading to 8 stable AMOC-on and 2 stable AMOC-off climate states after 400 years of integration, despite identical forcing of each ensemble member.

Aug 21, 2023 · A 10-member ensemble simulation with the NASA GISS-E2-1-G climate model shows a clear bifurcation in the Atlantic Meridional Overturning Circulation (AMOC) strength under the SSP2-4.5 extended scenario.

ABSTRACT: A 10-member ensemble simulation with the NASA GISS-E2-1-G climate model shows a clear bifurcation in the Atlantic meridional overturning circulation (AMOC) strength under the SSP2–4.5 extended scenario. At 268N, the bifurcation leads to 8 strong AMOC and 2 much weaker AMOC states, while at 488N, it leads to 8 stable AMOC-on and.

May 1, 2024 · The weaker AMOC, in turn, results in an eastward acceleration and poleward shift of the Atlantic and Pacific jets, respectively, on longer timescales.

A bi-stable mode of the Atlantic Meridional Overturning Circulation (AMOC) is found in a 10-member ensemble simulation of the SSP2-4.5 scenario using the NASA GISS-E2-1-G climate model.

The simulated relationships between AMOC and subsurface temperature anomalies in fully coupled climate models reveal subsurface AMOC fingerprints that could be used to reconstruct historical AMOC variations at low frequency.

May 15, 2018 · In this paper we present and diagnose abrupt AMOC “cessations” (or “off” mode) and returns that spontaneously occur with some configurations of GISS ModelE2 in extended simulations with large changes in CO 2.