edu.ucar.opensky::articles:42113 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-24T19:54:35.959127 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.net/ark:/85065/d7qv3rst https://doi.org/10.6075/J0CF9Q81 https Related Dataset #1 SOCCOM float data - Snapshot 2021-09-01. In Southern Ocean Carbon and Climate Observations and Modeling (SOCCOM) Float Data ArchiveSouthern Ocean Carbon and Climate Observations and Modeling (SOCCOM) Float Data Archive https://doi.org/10.6075/J0KK996D https Related Dataset #2 SOCCOM float data - Snapshot 2020-04-20. In Southern Ocean Carbon and Climate Observations and Modeling (SOCCOM) Float Data ArchiveSouthern Ocean Carbon and Climate Observations and Modeling (SOCCOM) Float Data Archive Modification of North Atlantic deep water by Pacific/upper circumpolar deep water in the Argentine Basin 2023-01-01T00:00:00Z publication https://n2t.net/ark:/85065/d7qv3rst https://doi.org/10.1029/2022GL099419 Brand, S. V. S. author Channing Prend author Talley, L. D. author UCAR/NCAR - Library publisher Much of the salty, high oxygen North Atlantic Deep Water (NADW) leaving the Atlantic flows through the Argentine Basin, where it is diluted by fresher, low oxygen Circumpolar Deep Water (CDW). This mixing of deep water masses is often overlooked in the zonally averaged description of the overturning circulation. Here, we show that intense mixing occurs along the western boundary: (a) extreme, isolated oxygen/temperature anomalies recorded by three autonomous biogeochemical floats suggest that subsurface eddies can inject relatively unmodified CDW far into the northwestern Argentine Basin, and (b) moderate, numerous temperature/salinity anomalies indicate a mixing zone from Rio Grande Rise to the Malvinas Current. This western eddy pathway shortcuts the gyre&#8208;scale cyclonic route for CDW inferred from most previous studies. Significantly, CDW dilution of NADW affects the properties of deep waters that upwell in the Southern Ocean, and hence the connection between Northern and Southern Hemisphere polar climates. 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 <style type="text/css"></style><span style="font-family:Arial;font-size:10pt;font-style:normal;" data-sheets-root="1">Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.</span> None eng geoscientificInformation