The impact of high-frequency current variability on dispersion off the eastern Antarctic Peninsula

Trasviña, A, Heywood, KJ ORCID: https://orcid.org/0000-0001-9859-0026, Renner, AHH, Thorpe, SE, Thompson, AF and Zamudio, L (2011) The impact of high-frequency current variability on dispersion off the eastern Antarctic Peninsula. Journal of Geophysical Research, 116 (C11). ISSN 0148-0227

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Abstract

We present observations of high-frequency current variability on the continental shelf and the slope of the Antarctic Peninsula using Lagrangian surface drifters deployed as part of the Antarctic Drifter Experiment: Links to Isobaths and Ecosystems (ADELIE) project. Here we focus on high-frequency processes such as tides and inertial oscillations that are typically smoothed out of large-scale spatially averaged, and/or temporally averaged, observed current fields. We investigate the role that this class of motion plays in the transport of physical or biogeochemical properties. Lateral displacements on the shelf and slope are found to be larger than displacements in deeper waters where tidal currents are negligible. We apply this result in a parameterization of the lateral dispersion during an off-line drifter modeling study. The outcome is an improvement on the modeling of Lagrangian drifting particles compared with a standard random walk scheme.

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Environmental Sciences University of East Anglia Research Groups/Centres > Theme - ClimateUEA
UEA Research Groups:	Faculty of Science > Research Groups > Marine and Atmospheric Sciences (former - to 2017) Faculty of Science > Research Groups > Meteorology, Oceanography and Climate Dynamics (former - to 2017) Faculty of Science > Research Groups > Climate, Ocean and Atmospheric Sciences (former - to 2017) Faculty of Science > Research Groups > Centre for Ocean and Atmospheric Sciences
Depositing User:	Users 2731 not found.
Date Deposited:	10 Jan 2012 13:48
Last Modified:	20 Mar 2023 11:30
URI:	https://ueaeprints.uea.ac.uk/id/eprint/36042
DOI:	10.1029/2011JC007003

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