Carriers of Sargassum and mechanism for coastal inundation in the Caribbean Sea

Andrade-Canto, F.; Beron-Vera, F. J.; Goni, G. J.; Karrasch, D.; Olascoaga, M. J.; Triñanes, J.

doi:10.1063/5.0079055

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Carriers of Sargassum and mechanism for coastal inundation in the Caribbean Sea

2022
By Andrade-Canto, F. ; Beron-Vera, F. J. ; Goni, G. J. ; ...
Source: Physics of Fluids 34, 016602

[PDF-2.93 MB]

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Details:

Journal Title:

Physics of Fluids
Personal Author:

Andrade-Canto, F. ; Beron-Vera, F. J. ; Goni, G. J. ; Karrasch, D. ; Olascoaga, M. J. ; ... More +

Andrade-Canto, F. ; Beron-Vera, F. J. ; Goni, G. J. ; Karrasch, D. ; Olascoaga, M. J. ; Triñanes, J. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; AOML (Atlantic Oceanographic and Meteorological Laboratory) ; CIMAS (Cooperative Institute for Marine and Atmospheric Studies)

OAR (Oceanic and Atmospheric Research) ; AOML (Atlantic Oceanographic and Meteorological Laboratory) ; CIMAS (Cooperative Institute for Marine and Atmospheric Studies) Less -
Description:

We identify effective carriers of Sargassum in the Caribbean Sea and describe a mechanism for coastal choking. Revealed from satellite altimetry, the carriers of Sargassum are mesoscale eddies (vortices of 50-km radius or larger) with coherent material (i.e., fluid) boundaries. These are observer-independent—unlike eddy boundaries identified with instantaneously closed streamlines of the altimetric sea-surface height field—and furthermore harbor finite-time attractors for networks of elastically connected finite-size buoyant or “inertial” particles dragged by ocean currents and winds, a mathematical abstraction of Sargassum rafts. The mechanism of coastal inundation, identified using a minimal model of surface-intensified Caribbean Sea eddies, is thermal instability in the presence of bottom topography.
Keywords:

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Sargassum Coastal Inundation Mesoscale Eddies Satellite Altimetry
Source:

Physics of Fluids 34, 016602
DOI:

https://doi.org/10.1063/5.0079055
Document Type:

Journal Article
Place as Subject:

Caribbean Sea
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urn:sha256:b4d96a0efcde7fd3eb86823435eb862f08158c2bc8def2f0e6138d9ef703a79c
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https://repository.library.noaa.gov/view/noaa/34235/noaa_34235_DS1.pdf
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