Bulletin of the American Physical Society
76th Annual Meeting of the Division of Fluid Dynamics
Sunday–Tuesday, November 19–21, 2023; Washington, DC
Session A28: Geophysical Fluid Dynamics: Oceanographic I
8:00 AM–9:57 AM,
Sunday, November 19, 2023
Room: 152A
Chair: Hussein Aluie, University of Rochester
Abstract: A28.00002 : A new method to diagnose turbulent cascade rates in mesoscale ocean systems and planetary atmospheres*
8:13 AM–8:26 AM
Presenter:
Brodie Pearson
(Oregon State University)
Authors:
Brodie Pearson
(Oregon State University)
Cassidy Wagner
(Oregon State University)
Jenna Pearson
(Climatematch Academy)
Natalie Rodriguez
(Johns Hopkins University)
Sarah Alshenaiber
(Oregon State University)
Baylor Fox-Kemper
(Brown University)
In this presentation we introduce an "advective structure function" method for estimating turbulent cascade rates in large-scale geophysical turbulence. Numerical simulations of idealized large-scale geophysical turbulence show that this new method can estimate cascade rates of energy and enstrophy even when flows are anisotropic and when spatial sampling is unidirectional (e.g., ship-tracks/satellite passes). We will also present a preliminary application of this new method to satellite observations of Jupiter's atmosphere.
*This research was primarily supported by NSF Award 2023721, in addition to support from ONR N00014-17-1-2963 and REU site program funding at Oregon State University under NSF OCE-2148655
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