Altimetry

Estimating the Atlantic MOC at 26°N using satellite altimetry and cable measurements

A statistical relationship between satellite sea surface height (SSH) and observed transports at 26°N is used to build a proxy for the AMOC transport since 1992. The method relies on a strong relationship between (1) the interannual variability of spatially-smoothed SSH at the western boundary of the Atlantic and (2) the RAPID 26°N estimate of upper mid-ocean transport (UMO, top ~1100m) across the Atlantic. Explained variance is very high, but the method assumes stationarity in the relationship between SSH and UMO, which would likely be violated on longer timescales associated with e.g., deep watermass change.

Eleanor Frajka-Williams

April 2015 Geophys. Res. Lett.

Estimating the Atlantic MOC at 26°N using satellite altimetry and cable measurements

Vertical structure of eddies and Rossby waves and their effect on the Atlantic MOC at 26.5°N

The meridional overturning circulation (MOC) at inline image in the Atlantic has a standard deviation of 4.9 Sv and contains large …

Louis Clément , Eleanor Frajka-Williams , Zoltan B. Szuts , Stuart A. Cunningham

September 2014 J. Geophys. Res.

Eddy impacts on the Florida Current

The Gulf Stream in the Atlantic carries warm water northwards and forms both the return closure of the subtropical gyre as well as the …

Eleanor Frajka-Williams , William E. Johns , Chris S. Meinen , Lisa M. Beal , Stuart A. Cunningham

January 2013 Geophys. Res. Lett.

Physical controls and mesoscale variability in the Labrador Sea spring phytoplankton bloom observed by Seaglider

We investigated the 2005 spring phytoplankton bloom in the Labrador Sea using Seaglider, an autonomous underwater vehicle equipped with …

Eleanor Frajka-Williams , Peter B. Rhines , Charles C. Eriksen

August 2009 Deep Sea Res. I

Physical controls and mesoscale variability in the Labrador Sea spring phytoplankton bloom observed by Seaglider