Articles | Volume 15, issue 6
https://doi.org/10.5194/os-15-1627-2019
https://doi.org/10.5194/os-15-1627-2019
Research article
 | 
09 Dec 2019
Research article |  | 09 Dec 2019

Vertical structure of ocean surface currents under high winds from massive arrays of drifters

John Lodise, Tamay Özgökmen, Annalisa Griffa, and Maristella Berta

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Cited articles

Arbic, B. K., Scott, R. B., Chelton, D. B., Richman, J. G., and Shriver, J. F.: Effects on stencil width on surface ocean geostrophic velocity and vorticity estimation from gridded satellite altimeter data, J. Geophys. Res., 117, C03029, https://doi.org/10.1029/2011JC007367, 2012. 
Ardhuin, F., Marié, L., Rascle, N., Forget, P., and Roland, A.: Observation and estimation of Lagrangian, Stokes, and Eulerian currents induced by wind and waves at the sea surface, J. Phys. Oceanogr., 39, 2820–2838, https://doi.org/10.1175/2009JPO4169.1, 2009. 
Berta, M., Bellomo, L., Magaldi, M.G., Griffa, A., Molcard, A., Marmain, J., Borghini, M. and Taillandier, V.: Estimating Lagrangian transport blending drifters with HF radar data and models: results from the TOSCA experiment in the Ligurian Current (North Western Mediterranean Sea), Prog. Oceanogr., 128, 15–29, https://doi.org/10.1016/j.pocean.2014.08.004, 2014. 
Berta, M., Griffa, A., Magaldi, M. G., Özgökmen, T. M., Poje, A. C., Haza, A. C., and Olascoaga, M. J.: Improved surface velocity and trajectory estimates in the Gulf of Mexico from blended satellite altimetry and drifter data, J. Atmos. Ocean. Tech., 32, 1880–1901, https://doi.org/10.1175/JTECH-D-14-00226.1, 2015. 
Berta, M., Bellomo, L., Griffa, A., Magaldi, M. G., Molcard, A., Mantovani, C., Gasparini, G. P., Marmain, J., Vetrano, A., Béguery, L., Borghini, M., Barbin, Y., Gaggelli, J., and Quentin, C.: Wind-induced variability in the Northern Current (northwestern Mediterranean Sea) as depicted by a multi-platform observing system, Ocean Sci., 14, 689–710, https://doi.org/10.5194/os-14-689-2018, 2018. 
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Short summary
Observations of ocean currents within the first meter of the surface are made using a large number of ocean drifters of two different draft depths (0–5 and 0–60 cm). We deconstruct the total drifter velocities using an estimate of the regional circulation and a modeled Stokes drift velocity to calculate the purely wind-driven component of each drifter type. We reveal that the wind-driven velocities rotate to the right of the wind, while also decreasing, with depth.
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