Results 111 to 120 of about 1,076,103 (215)

Atlantic Meridional Overturning Circulation slowdown suppresses Atlantic Niño variability

npj Climate and Atmospheric Science
f The Atlantic Niño is the dominant mode of interannual variability in the Tropical Atlantic with significant impacts on local and remote climate patterns.
Pedro Freire-Souza, Gabriel M. Pontes, Laurie Menviel, Ilana Wainer   +3 more
doaj   +1 more source

Deciphering the Link Between Modeling Errors and the North Atlantic Surface Warming Pattern Projected by CMIP5 and CMIP6 Models

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract The North Atlantic Subpolar Gyre (NASG) has warmed much less than the global ocean over recent decades, thereby suggesting a human‐caused slowdown of the Atlantic Meridional Overturning Circulation (AMOC). This North Atlantic “warming hole” is also found in climate projections, yet with a model‐dependent timing, location and intensity. Here we
Hervé Douville, George Whittle, Pascal Terray   +2 more
wiley   +1 more source

New Constraint on Future Ocean Heat Uptake Revealed by Considering Model Spread of Radiative Forcing

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Radiative forcing (F) $(F)$ is the fundamental driver of ocean heat uptake (N) $(N)$; however, its contribution to intermodel spread in N $N$ has not been quantified. We address this gap by leveraging a new set of CMIP6 experiments that diagnoses time‐varying F $F$ for the first time in 11 models.
Quran Wu, Jonathan Gregory
wiley   +1 more source

Circulation characteristics in three eddy-permitting models of the North Atlantic [PDF]

, 2001
A systematic intercomparison of three realistic eddy-permitting models of the North Atlantic circulation has been performed. The models use different concepts for the discretization of the vertical coordinate, namely geopotential levels, isopycnal layers,
Killworth, P. D., New, A. L., Le Provost, Christian, LeProvost, C., Böning, Claus, Dieterich, Christian, Killworth, P., Willebrand, J., New, A.L., Killworth, Peter D., Böning, Carmen, Claus Böning, Barnier, Bernard, Bernard Barnier, Barnier, B., Jürgen Willebrand, Willebrand, Jürgen, Christian Dieterich, Peter D Killworth, Böning, Claus W., Yanli Jia, Yia, J., Jia, Y., New, Adrian L., Jia, Yanli, Dieterich, C., Jean-Marc Molines, Christian Le Provost, Le Provost, C., Molines, J.-M., Adrian L New, Molines, Jean-Marc   +31 more
core   +1 more source

Symmetric instability in the Atlantic meridional overturning circulation

, 2022
The role of symmetric instability in mixing momentum, buoyancy and poten- tial vorticity is examined in several constituent currents of the Atlantic Meridional Overturning Circulation: the North Brazil Current and its rings, the Deep Western Boundary Current in the Tropical Atlantic, and the East Greenland Current of the Sub-polar North Atlantic ...
openaire   +1 more source

El Niño–Southern Oscillation strengthened by North Atlantic Iceberg discharge during Heinrich stadial 1

Communications Earth & Environment
The last deglaciation provides an opportunity to assess the response of El Niño–Southern Oscillation to rapid warming and disruptions of the Atlantic Meridional Overturning Circulation, both projected in the near future.
Marco Yseki, Bruno Turcq, Dimitri Gutiérrez, Renato Salvatteci, Dante Espinoza-Morriberón, Hugues Boucher, Philippe Martinez, Matthieu Carré   +7 more
doaj   +1 more source

New Constraints on the Onset of Antarctic Glaciation From Combined Radiogenic Hafnium and Neodymium Isotopes

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract The drawdown of atmospheric CO2 likely triggered Antarctic glaciation during the Eocene‐Oligocene Transition (34 Ma). Accurately constraining this shift from “greenhouse” to an “icehouse” climate is essential for understanding global carbon cycle dynamics.
Keehwan Lee, Franco Marcantonio, Michael Bizimis, Howie D. Scher, Brian W. Romans, Lucien Nana Yobo   +5 more
wiley   +1 more source

More Stabilizing Radiative Feedbacks in CO2 Removal Scenarios

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Recent studies show that global mean surface temperature exhibits a transient hysteresis during CO2 ${\mathrm{C}\mathrm{O}}_{2}$ removal, where temperatures remain elevated after CO2 ${\mathrm{C}\mathrm{O}}_{2}$ concentrations return to pre‐industrial levels.
Ivan Mitevski, Gabriel A. Vecchi
wiley   +1 more source

Overturning Circulation of the North Atlantic Subtropical Gyre Computed in Density Coordinates at 26°N

Geophysical Research Letters
The RAPID‐MOCHA‐WBTS array in the subtropical gyre of the North Atlantic has measured the Atlantic Meridional Overturning Circulation (AMOC) and the overturning streamfunction in depth coordinates since 2004.
D. A. Smeed, W. E. Johns, R. H. Smith, T. Petit, E. L. McDonagh, D. Rayner, D. L. Volkov, S. Elipot, J. B. Kajtar, B. A. King, Y. L. Firing, B. I. Moat   +11 more
doaj   +1 more source

Coupling of equatorial Atlantic surface stratification to glacial shifts in the tropical rainbelt

Scientific Reports, 2017
The modern state of the Atlantic meridional overturning circulation promotes a northerly maximum of tropical rainfall associated with the Intertropical Convergence Zone (ITCZ).
R. C. Portilho-Ramos, C. M. Chiessi, Y. Zhang, S. Mulitza, M. Kucera, M. Siccha, M. Prange, A. Paul   +7 more
doaj   +1 more source