Effect of the Coastline Geometry on the Boundary Currents Intruding through the Gap

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Author(s)Kuehl, Joseph
Author(s)Sheremet, Vitalii A.
Date Accessioned2022-03-28T19:08:59Z
Date Available2022-03-28T19:08:59Z
Publication Date2022-02-08
DescriptionThis article was originally published in Fluids. The version of record is available at: https://doi.org/10.3390/fluids7020071en_US
AbstractThe problem of a geophysical western boundary current negotiating a gap in its supporting boundary is considered. For traditional straight, parallel gaps, such systems are known to exhibit two dominant states, gap penetrating and leaping, with the transitional dynamics between states displaying hysteresis. However, for more complex geometries, such as angled or offset gap configurations, the question of multiple states and hysteresis is unresolved. In such cases, the inertia of the western boundary current is oriented into the gap, hence the assumption that increased inertia promotes gap penetrating loop current states. Here we address the problem numerically in an idealized setting. It is found that despite the inertia of the current being directed into the gap, for large western boundary current transport values, leaping states will be present. That is, we show here that the presence of multiple states with hysteresis for gap-leaping western boundary current systems is robust to both angled and offset gap geometries.en_US
SponsorThe authors are thankful to the National Science Foundation, USA for funding this research via grant number 1823452, and to the National Academies of Sciences, Engineering and Medicine (NASEM) UGOS-1 via grant number 2000009918 and UGOS-2 via grant number 200011071.en_US
CitationKuehl, Joseph, and Vitalii A. Sheremet. 2022. "Effect of the Coastline Geometry on the Boundary Currents Intruding through the Gap" Fluids 7, no. 2: 71. https://doi.org/10.3390/fluids7020071en_US
ISSN2311-5521
URLhttps://udspace.udel.edu/handle/19716/30716
Languageen_USen_US
PublisherFluidsen_US
TitleEffect of the Coastline Geometry on the Boundary Currents Intruding through the Gapen_US
TypeArticleen_US
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