ICTS:28721

Video URL

Unraveling the dynamical interactions between mesoscales, submesoscales and inertia gravity waves i…

Unraveling the dynamical interactions between mesoscales, submesoscales and inertia gravity waves in the ocean through cross-scale energy fluxes (Online)

(2024). Unraveling the dynamical interactions between mesoscales, submesoscales and inertia gravity waves in the ocean through cross-scale energy fluxes (Online). SciVideos. https://youtu.be/ub8QV4R8x30

Unraveling the dynamical interactions between mesoscales, submesoscales and inertia gravity waves in the ocean through cross-scale energy fluxes (Online). SciVideos, May. 21, 2024, https://youtu.be/ub8QV4R8x30 

          @misc{ scivideos_ICTS:28721,
            doi = {},
            url = {https://youtu.be/ub8QV4R8x30},
            author = {},
            keywords = {},
            language = {en},
            title = {Unraveling the dynamical interactions between mesoscales, submesoscales and inertia gravity waves in the ocean through cross-scale energy fluxes (Online)},
            publisher = {},
            year = {2024},
            month = {may},
            note = {ICTS:28721 see, \url{https://scivideos.org/icts-tifr/28721}}
          }
Kaushik Srinivasan
Talk numberICTS:28721
Source RepositoryICTS-TIFR
Source EventTheoretical and Practical Perspectives in Geophysical Fluid Dynamics
Collection

Abstract

The principle dynamical components in the large scale ocean (i.e. spatial scales larger than O(100m)) are dominated by mesoscale eddies, submesoscale currents and interia gravity waves comprising both storm-forced Near-Inertial Waves (NIWs) and tidally generated internal waves (TIWs).  While mesoscale eddies (length scales of 10s of kms), generated primarily through baroclinic instability are the principal reservoir of kinetic energy in the world oceans, submesoscale currents (O(1-10 km)) comprising mixed layer eddies and fronts interact strongly with mesoscales and are critical for  regulating biogeochemical and air-sea fluxes. Here we use the so-called coarse-graining approach to compute cross-scale energy fluxes that shed light on dynamical interactions between these three components and their impact on the upper ocean. By first decomposing the oceanic velocity field into rotational and divergent components on one hand (i.e. a Helmholtz decomposition) and separately using an eddy-IG...