edu.ucar.opensky::articles:24467 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-24T23:11:55.336224 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7g73j4f https://doi.org/10.5281/zenodo.4697546 https Related Dataset #1 Data for manuscript "The Pathways of an active Pacific Meridional Overturning Circulation in the Pliocene Ocean" Oceanic pathways of an Active Pacific Meridional Overturning Circulation (PMOC) 2021-05-28T00:00:00Z publication https://n2t.org/ark:/85065/d7g73j4f https://doi.org/10.1029/2020GL091935 Thomas, Matthew author Fedorov, A. V. author Burls, N. J. author Liu, W. author UCAR/NCAR - Library publisher In contrast to the modern-day climate, North Pacific deep water formation and a Pacific meridional overturning circulation (PMOC) may have been active during past climate conditions, in particular during the Pliocene epoch (some 3-5 million years ago). Here, we use a climate model simulation with a robust PMOC cell to investigate the pathways of the North Pacific deep water from subduction to upwelling, as revealed by Lagrangian particle trajectories. We find that similar to the present-day Atlantic Meridional Overturning Circulation (AMOC), most subducted North Pacific deep water upwells in the Southern Ocean. However, roughly 15% upwells in the tropical Indo-Pacific Oceans instead-a key feature distinguishing the PMOC from the AMOC. The connection to the Indian Ocean is relatively fast, at about 250 years. The connection to the tropical Pacific is slower (similar to 800 years) as water first travels to the subtropical South Pacific then gradually upwells through the thermocline. 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 Geophysical Union. None eng geoscientificInformation