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A Vorticity‐Divergence View of Internal Wave Generation by a Fast‐Moving Tropical Cyclone: Insights From Super Typhoon Mangkhut
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2023
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Source: Journal of Geophysical Research: Oceans, 128(5)
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Journal Title:Journal of Geophysical Research: Oceans
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Description:Tropical cyclones (TCs) are powered by heat fluxes across the air-sea interface, which are in turn influenced by subsurface physical processes that can modulate storm intensity. Here, we use data from 6 profiling floats to recreate 3D fields of temperature ( T), salinity ( S), and velocity around the fast-moving Super Typhoon Mangkhut (western North Pacific, September 2018). Observational estimates of vorticity ( ζ) and divergence (Γ) agree with output from a 3D coupled model, while their relation to vertical velocities is explained by a linear theoretical statement of inertial pumping. Under this framework, inertial pumping is described as a linear coupling between ζ and Γ, whose oscillations in quadrature cause periodic displacements
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Source:Journal of Geophysical Research: Oceans, 128(5)
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ISSN:2169-9275;2169-9291;
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Rights Information:Other
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