Exploring the AMOC Connectivity Between the RAPID and OSNAP Lines With a Model‐Based Data Set
Abstract Two major trans‐basin mooring arrays, the Rapid Climate Change‐Meridional Overturning Circulation and Heatflux Array (RAPID) at 26.5°N since 2004 and the Overturning in the Subpolar North Atlantic Program (OSNAP) situated at 53°–60°N since 2014, have been continuously monitoring the Atlanti...
Published in: | Geophysical Research Letters |
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Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2023
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Subjects: | |
Online Access: | https://doi.org/10.1029/2023GL105225 https://doaj.org/article/d56f0b2d4ef34321b114a90b22387ae7 |
Summary: | Abstract Two major trans‐basin mooring arrays, the Rapid Climate Change‐Meridional Overturning Circulation and Heatflux Array (RAPID) at 26.5°N since 2004 and the Overturning in the Subpolar North Atlantic Program (OSNAP) situated at 53°–60°N since 2014, have been continuously monitoring the Atlantic Meridional Overturning Circulation (AMOC). This study explores the connectivity of AMOC across these two mooring lines from a novel adiabatic perspective utilizing a model‐based data set. The findings unveil significant in‐phase connections facilitated by the adiabatic basinwide redistribution of water between the two lines on a monthly timescale. This adiabatic mode is a possible cause for the observed subpolar AMOC seasonality by OSNAP. Furthermore, the Labrador Sea was identified as a hotspot for adiabatic forcing of the overturning circulations, primarily attributed to its dynamic isopycnal movements. |
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