Altimetry

Dissipation of mesoscale eddies at a western boundary via a direct energy cascade
The fate of mesoscale eddy kinetic energy represents a large source of uncertainty in the global ocean energy budget. Satellite …
D. Gwyn Evans , Eleanor Frajka-Williams , Alberto C. Naveira Garabato
January 2022 Scientific Reports
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Dissipation of mesoscale eddies at a western boundary via a direct energy cascade
A dynamically based method for estimating the Atlantic meridional overturning circulation at 26°N from satellite altimetry
A method for estimating 26°N overturning from time-varying satellite altimetry and time-averaged boundary profiles of dynamic height.
Alejandra Sanchez-Franks , Eleanor Frajka-Williams , Ben I. Moat , David A. Smeed
January 2021 Oc. Sci.
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A dynamically based method for estimating the Atlantic meridional overturning circulation at 26°N from satellite altimetry
Breaking of internal waves and turbulent dissipation in an anticyclonic mode water eddy
A 4-month glider mission was analyzed to assess turbulent dissipation in an anticyclonic eddy at the western boundary of the …
Bieito Fernandez-Castro , D. Gwyn Evans , Eleanor Frajka-Williams , Clement Vic , Alberto C. Naveira Garabato
July 2020 J. Phys. Ocean.
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Breaking of internal waves and turbulent dissipation in an anticyclonic mode water eddy
Phased response of the subpolar Southern Ocean to changes in circumpolar winds
The response of the subpolar Southern Ocean (sSO) to wind forcing is assessed using satellite radar altimetry. sSO sea level exhibits a …
Alberto C. Naveira Garabato , Jack Hooley , Tiago S. Dotto , Sheldon Bacon , M. Tsamados , A. Ridout , Eleanor Frajka-Williams , L. Herraiz-Borreguero , Paul R. Holland , H. D. B. S. Heorton , Mike P. Meredith
May 2019 Geophys. Res. Lett.
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Phased response of the subpolar Southern Ocean to changes in circumpolar winds
Loop Current variability as trigger of coherent Gulf Stream transport anomalies
Joel J.-M. Hirschi , Eleanor Frajka-Williams , Adam T. Blaker , Bablu Sinha , P. Hyder , Andrew Coward , Others
January 2019 J. Phys. Ocean.
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Loop Current variability as trigger of coherent Gulf Stream transport anomalies
Coherent modulation of the sea-level annual cycle in the United States by Atlantic Rossby waves
Changes in the sea-level annual cycle (SLAC) can have profound impacts on coastal areas, including increased flooding risk and …
Francisco M. Calafat , Thomas Wahl , Fredrik Lindsten , Joanne Williams , Eleanor Frajka-Williams
December 2018 Nature Comm.
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Coherent modulation of the sea-level annual cycle in the United States by Atlantic Rossby waves
Variability of the Ross Gyre, Southern Ocean: drivers and responses revealed by satellite altimetry
The Ross Gyre is one of the main current systems of the Southern Ocean and conveys heat toward the cold continental shelves of the …
Tiago S. Dotto , Alberto C. Naveira Garabato , Sheldon Bacon , M. Tsamados , Paul R. Holland , Jack Hooley , Eleanor Frajka-Williams , A. Ridout , Mike P. Meredith
June 2018 Geophys. Res. Lett.
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Variability of the Ross Gyre, Southern Ocean: drivers and responses revealed by satellite altimetry
Wind-driven transport of fresh shelf water into the upper 30m of the Labrador Sea
The Labrador Sea is one of a small number of deep convection sites in the North Atlantic, that contribute to the meridional overturning …
Lena M. Schulze Chretien , Eleanor Frajka-Williams
January 2018 Oc. Sci.
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Wind-driven transport of fresh shelf water into the upper 30m of the Labrador Sea
Generation of Internal Waves by Eddies Impinging on the Western Boundary of the North Atlantic
Despite the major role played by mesoscale eddies in redistributing the energy of the large-scale circulation, our understanding of …
Louis Clement , Eleanor Frajka-Williams , Katy L. Sheen , J. Alex Brearley , Alberto C. Naveira Garabato
April 2016 J. Phys. Ocean.
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Generation of Internal Waves by Eddies Impinging on the Western Boundary of the North Atlantic
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.
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Estimating the Atlantic MOC at 26°N using satellite altimetry and cable measurements