The partitioning of poleward energy transport response between the atmosphere and Ekman flux to prescribed surface forcing in a simplified GCM [PDF]
Geoscience Letters, 2018 Recent studies have indicated that ocean circulation damps the atmospheric energy transport response to hemispherically differential energy perturbations, thereby muting the shifts of the Inter-Tropical Convergence Zone (ITCZ).
Sarah M. Kang +2 more
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A systematic method of estimation of alongshore windstress and Ekman transport associated with coastal upwelling [PDF]
MethodsX, 2023 A standard method for estimating alongshore windstress (AWS) and related cross-shore Ekman transport (ET) is proposed. In the absence of standard methodologies for estimating coastal angles required for AWS estimation, an estimation is typically derived ...
Sthitapragya Ray, Debadatta Swain
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SN Applied Sciences, 2021 We examine the role of zonal Ekman transport along the coast of Senegal on 30 August 2015 when the tropical disturbance associated with Tropical Cyclone Fred was located to the west of Senegal, causing considerable coastal damage in the southern Senegal ...
Abdou Lahat Dieng +4 more
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Extension of Ekman (1905) wind-driven transport theory to the β plane [PDF]
Ocean Science, 2023 The seminal Ekman (1905) f-plane theory of wind-driven transport at the ocean surface is extended to the β plane by substituting the pseudo-angular momentum for the zonal velocity in the Lagrangian equation. When the β term is added, the equations become
N. Paldor, L. Friedland
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On the meridional ageostrophic transport in the tropical Atlantic [PDF]
Ocean Science, 2017 The meridional Ekman volume, heat, and salt transport across two trans-Atlantic sections near 14.5° N and 11° S were estimated using in situ observations, wind products, and model data. A meridional ageostrophic velocity was obtained as the difference
Y. Fu +3 more
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Heat transport in rotating convection without Ekman layers [PDF]
Physical Review E, 2009 Numerical simulation of rotating convection in plane layers with free slip boundaries show that the convective flows can be classified according to a quantity constructed from the Reynolds, Prandtl and Ekman numbers. Three different flow regimes appear: Laminar flow close to the onset of convection, turbulent flow in which the heat flow approaches the ...
Schmitz, S., Tilgner, Andreas
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On the seasonal cycles and variability of Florida Straits, Ekman and Sverdrup transports at 26° N in the Atlantic Ocean [PDF]
Ocean Science, 2010 Since April 2004 the RAPID array has made continuous measurements of the Atlantic Meridional Overturning Circulation (AMOC) at 26° N. Two key components of this system are Ekman transport zonally integrated across 26° N and western ...
C. P. Atkinson +3 more
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Seasonal variability of the Ekman transport and pumping in the upwelling system off central-northern Chile (∼ 30° S) based on a high-resolution atmospheric regional model (WRF) [PDF]
Ocean Science, 2016 Two physical mechanisms can contribute to coastal upwelling in eastern boundary current systems: offshore Ekman transport due to the predominant alongshore wind stress and Ekman pumping due to the cyclonic wind stress curl, mainly caused by the abrupt ...
L. Bravo +4 more
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Horizontal Gravity in Ocean Ekman transport [PDF]
, 2021 Abstract Three-dimensional gravity vector field g (= igλ+jgφ+kgz) in geodesy has been greatly simplified to a uniform vertical vector (-g0k) in oceanography with (λ, φ, z) the (longitude, latitude, height), (i, j, k) the corresponding unit vectors, and g0 = 9.81 m/s2. Recent studies by the author show such simplification incorrect.
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On the numerical resolution of the bottom layer in simulations of oceanic gravity currents [PDF]
Ocean Science, 2010 The role of an increased numerical vertical resolution, leading to an explicit resolution of the bottom Ekman layer dynamics, is investigated. Using the hydrostatic ocean model NEMO-OPA9, we demonstrate that the dynamics of an idealised gravity current ...
N. Laanaia +4 more
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