Capturing Multiscale Dynamics in the Oceanic Mixed Layer. Part I: Hydrostatic Simulations

Capturing Multiscale Dynamics in the Oceanic Mixed Layer. Part I: Hydrostatic Simulations | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 28 April 2025 V1 Latest version Share on Capturing Multiscale Dynamics in the Oceanic Mixed Layer. Part I: Hydrostatic Simulations Authors : Shirui Peng 0000-0002-4616-4604 [email protected] , Simone Silvestri 0000-0002-7156-946X , and Abigail Bodner 0000-0003-1333-2840 Authors Info & Affiliations https://doi.org/10.22541/au.174585712.26266872/v1 315 views 194 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Understanding the variability of properties such as momentum, tracers, and energy across scales in the oceanic mixed layer remains a significant challenge due to the large-scale separation between mesoscale turbulence and small-scale turbulence driven by shear, convection, and waves. We present an idealized numerical framework that investigates multiscale interactions within the mixed layer by capturing mesoscale eddies, submesoscale fronts, and boundary layer turbulence in an environment characterized by strong convergence zones, distinct warm and cold fronts, and surface forcing from wind and convection. Within this framework, we analyze the spatial and spectral properties of temperature, velocity, and vorticity fields while quantifying frontogenesis and cross-scale kinetic energy fluxes. This study focuses on a hydrostatic model configuration as a counterpart to a meter-scale non-hydrostatic simulation analyzed separately. Our results highlight key dynamical regimes emerging under different forcing conditions and provide insight into the impact of subgrid-scale closures in representing resolved multiscale interactions. These findings offer a pathway for improving multiscale parameterizations in global ocean models. Supplementary Material File (1031716_0_merged_1744995564.pdf) Download 9.91 MB Information & Authors Information Version history V1 Version 1 28 April 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords large eddy simulation mixed layer model oceanography Authors Affiliations Shirui Peng 0000-0002-4616-4604 [email protected] Massachusetts Institute of Technology View all articles by this author Simone Silvestri 0000-0002-7156-946X Massachusetts Institute of Technology View all articles by this author Abigail Bodner 0000-0003-1333-2840 Massachusetts Institute of Technology School of Engineering View all articles by this author Metrics & Citations Metrics Article Usage 315 views 194 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Shirui Peng, Simone Silvestri, Abigail Bodner. Capturing Multiscale Dynamics in the Oceanic Mixed Layer. Part I: Hydrostatic Simulations. Authorea . 28 April 2025. 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