Florida Current transport observations reveal four decades of steady state

Volkov, Denis L.; Smith, Ryan H.; Garcia, Rigoberto F.; Smeed, David A.; Moat, Ben I.; Johns, William E.; Baringer, Molly O.

doi:10.1038/s41467-024-51879-5

i

Florida Current transport observations reveal four decades of steady state

2024
By Volkov, Denis L. ; Smith, Ryan H. ; Garcia, Rigoberto F. ; ...

Details

Journal Title:

Nature Communications
Personal Author:

Volkov, Denis L. ; Smith, Ryan H. ; Garcia, Rigoberto F. ; Smeed, David A. ; Moat, Ben I. ; Johns, William E. ; Baringer, Molly O.
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; AOML (Atlantic Oceanographic and Meteorological Laboratory) ; CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
Description:

The potential weakening of the Atlantic Meridional Overturning Circulation (AMOC) in response to anthropogenic forcing, suggested by climate models, is at the forefront of scientific debate. A key AMOC component, the Florida Current (FC), has been measured using submarine cables between Florida and the Bahamas at 27°N nearly continuously since 1982. A decrease in the FC strength could be indicative of the AMOC weakening. Here, we reassess motion-induced voltages measured on a submarine cable and reevaluate the overall trend in the inferred FC transport. We find that the cable record beginning in 2000 requires a correction for the secular change in the geomagnetic field. This correction removes a spurious trend in the record, revealing that the FC has remained remarkably stable. The recomputed AMOC estimates at ~26.5°N result in a significantly weaker negative trend than that which is apparent in the AMOC time series obtained with the uncorrected FC transports.
Source:

Nature Communications, 15(1)
DOI:

https://doi.org/10.1038/s41467-024-51879-5
ISSN:

2041-1723
Format:

PDF
Publisher:

Springer Science and Business Media LLC
Document Type:

Journal Article
License:

https://creativecommons.org/licenses/by-nc-nd/4.0/
Rights Information:

CC BY-NC-ND
Compliance:

Submitted
Main Document Checksum:

urn:sha-512:0a2c6949dd269e33245d553427fcb9e48bbd33aa72fa77e2fd7d365683dd5ead46c6b8c6f86427383f897bdfe5140a68e67c2c9d0ad62e5b619c9db38195dd1f
Download URL:

https://repository.library.noaa.gov/view/noaa/66312/noaa_66312_DS1.pdf
File Type:

[PDF - 5.42 MB ]

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