edu.ucar.opensky::articles:25115 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-24T23:05:27.032433 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d72b92jm https://doi.org/10.5285/8cd7e7bb-9a20-05d8-e053-6c86abc012c2 https Related Dataset #1 Atlantic meridional overturning circulation observed by the RAPID-MOCHA-WBTS (RAPID-Meridional Overturning Circulation and Heatflux Array-Western Boundary Time Series) array at 26N from 2004 to 2018. The influence of variability in meridional over turning on global ocean circulation 2021-09-01T00:00:00Z publication https://n2t.org/ark:/85065/d72b92jm https://doi.org/10.1175/JCLI-D-21-0119.1 Hu, Aixue author Meehl, Gerald A. author Rosenbloom, Nan author Molina, Maria author Strand, Warren G. author UCAR/NCAR - Library publisher The Atlantic meridional overturning circulation (AMOC) is an important global-scale circulation and changes in AMOC can induce significant regional and global climate impacts. Here we study the stability of AMOC and its influence on global ocean circulation and the surface climate though analyzing a set of sensitivity experiments using the Community Earth System Model version 1 (CESM1). Results show that a collapsed AMOC can induce changes in global ocean circulation, such as reduced (or reversed) Bering Strait transport and weakened Indonesian Throughflow and Agulhas Current, but strengthened Drake Passage transport. It also changes the global wind pattern and surface temperature, such as a seesaw-like surface temperature change between Northern and Southern Hemispheres, a weakening of the Indian-Australian summer monsoon, and a southward shift of the Southern Ocean westerlies. We also found that AMOC and the Pacific deep meridional overturning circulation (PMOC) do not form a natural seesaw under modern-day climate and geography. A collapsed AMOC (active PMOC) is not stable under modern conditions if there is no additional freshwater (salt) input in the subpolar North Atlantic (Pacific), suggesting that the modern mean state of AMOC (PMOC) does not depend on local haline forcing although its variability and changes do. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright 2021 American Meteorological Society (AMS). None eng geoscientificInformation