Accelerated sea level rise and Florida Current transport

The Florida Current is the headwater of the Gulf Stream and is a component of the North Atlantic western boundary current from which a geostrophic balance between sea surface height and mass transport directly influence coastal sea levels along the Florida Straits. A linear regression of daily Flori...

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Bibliographic Details
Published in:Ocean Science
Main Authors: J. Park, W. Sweet
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2015
Subjects:
G
Online Access:https://doi.org/10.5194/os-11-607-2015
https://doaj.org/article/5b12ba56e73a4590a9f4ee1759573b91
Description
Summary:The Florida Current is the headwater of the Gulf Stream and is a component of the North Atlantic western boundary current from which a geostrophic balance between sea surface height and mass transport directly influence coastal sea levels along the Florida Straits. A linear regression of daily Florida Current transport estimates does not find a significant change in transport over the last decade; however, a nonlinear trend extracted from empirical mode decomposition (EMD) suggests a 3 Sv decline in mean transport. This decline is consistent with observed tide gauge records in Florida Bay and the straits exhibiting an acceleration of mean sea level (MSL) rise over the decade. It is not known whether this recent change represents natural variability or the onset of the anticipated secular decline in Atlantic meridional overturning circulation (AMOC); nonetheless, such changes have direct impacts on the sensitive ecological systems of the Everglades as well as the climate of western Europe and eastern North America.