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Preprints
https://doi.org/10.5194/egusphere-2024-2913
https://doi.org/10.5194/egusphere-2024-2913
23 Sep 2024
 | 23 Sep 2024

Technical Note: A note on stabilization mechanisms of, e.g., Atlantic Ocean meridional overturning circulation

Hans van Haren

Abstract. The extent of anthropogenic influence on the Earth’s climate warrants studies of the ocean as a major player. The ocean circulation is important for transporting properties like heat, carbon and nutrients. A supposed major conduit is the Atlantic Meridional Overturning Circulation (AMOC). As the AMOC is a complex nonlinear dynamical system, it is challenging to predict its potential to collapse and/or reversal of direction from a statistical viewpoint using a single parameter like sea-surface temperature or freshwater influx in numerical models. However, as is argued in this note supported by spectra from ocean observations, physical processes such as transport by sub-mesoscale eddies and turbulence-generating breaking of internal waves that are not incorporated in these models will alter such parameters, and thereby statistical analyses. This may lead to feed-back mechanisms on property gradients such as density stratification so that the AMOC may not collapse.

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Journal article(s) based on this preprint

05 Mar 2025
Technical note: Spectral slopes in a deep, weakly stratified ocean and coupling between sub-mesoscale motion and small-scale mechanisms
Hans van Haren
Ocean Sci., 21, 555–565, https://doi.org/10.5194/os-21-555-2025,https://doi.org/10.5194/os-21-555-2025, 2025
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The extent of mankind’s influence on Earth’s climate warrants ocean-studies. A supposed major...
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