AGU Fall Meeting Session on lateral eddy mixing and diffusivities: estimation from observations and model parameterizations

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AGU Fall Meeting Session on lateral eddy mixing and diffusivities: estimation from observations and model parameterizations

Inga Koszalka
Dear Colleagues,

For those of you who are interested in lateral eddy mixing and stirring in polar oceans and under the sea ice and shelves, as well as the representation of these processes in models, please consider submitting an abstract to the AGU 2018 Fall Meeting session "Beyond constant eddy diffusivities: Estimation, implementation, impacts, and new approaches to the parametrization of lateral mixing in ocean models".

The AGU Fall Meeting takes place in Washington, D.C., on December 10-14, 2018 and it serves as the advent of AGU’s Centennial year. In this spirit, and with our session collecting, linking and reviewing different approaches, we are aiming to open for a new area in research concerning lateral eddy mixing. The session features invited authors: Dr. Sylvia T. Cole, Woods Hole Oceanographic Institution, and Prof. Trevor McDougall, University of New South Wales. The deadline for abstract submission is August 1, 2018, 11:59 PM EDT.

Please find more information about the session below.

Best regards,

Inga Koszalka

Prof. Dr. Inga Koszalka
FB1 Ozeanzirkulation und Klimadynamik
GEOMAR 
Helmholtz-Zentrum für Ozeanforschung Kiel
Düsternbrooker Weg 20
24105 Kiel, Germany
 
Tel. +49-431-600-4161
Fax  +49-431-600-4012
[hidden email]


Session title: "Beyond constant eddy diffusivities: Estimation, implementation, impacts, and new approaches to the parametrization of lateral mixing in ocean models"
Session ID: 45421 (OS005)
ConvenersInga Monika Koszalka, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, K. Shafer Smith, New York University, New York, NY, United States, Anand Gnanadesikan, Johns Hopkins Univ-EPS, Baltimore, MD, United States and Baylor Fox-Kemper, Brown University, Providence, RI, United States

Session Description: In ocean climate models, the lateral transport of tracers due to unresolved turbulent flows must be parametrized. The most common approach mimics molecular diffusion, or anisotropic diffusion to represent stirring along isopycnals (Redi coefficient), and represents unresolved eddy-induced advection by slumping isopycnals at a rate proportional to their slopes (Gent-McWilliams coefficient). Constraining the values of these parameters has been a goal of the modeling and observational communities for decades. This session addresses (1) advances in estimation of mixing and tracer variance production by eddies from observations and high resolution models, (2) theoretical approaches to constrain the parameters, including inverse methods, (3) implementation in ocean models, (4) impacts of parameterizations on modeled tracers and/or climate variability, and (5) novel approaches. The focus of the session is on methods and quantities relevant to model parameterizations specifically, as opposed to diagnosis of turbulent structures for other reasons.

Invited authors: Dr. Sylvia T. Cole, Woods Hole Oceanographic Institution, and Prof. Trevor McDougall, University of New South Wales.

Website: https://agu.confex.com/agu/fm18/prelim.cgi/Session/45421


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