Results 1 to 10 of about 2,476 (207)
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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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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True gravity in ocean dynamics Part 1 Ekman transport
Dynamics of Atmospheres and Oceans, 2021 Abstract The direction normal to the Earth spherical (or ellipsoidal) surface is not vertical (called deflected vertical) since the vertical direction is along the true gravity g (= igλ+ jgφ+ kgz). Here, (λ, φ, z) are (longitude, latitude, depth), and (i, j, k) are the corresponding unit vectors.
Peter C Chu
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Contribution of Ekman Transport to the ENSO Periodicity Estimated With an Extended Wyrtki Index
Geophysical Research Letters, 2021 AbstractOff‐equatorial wind stress curl anomalies that mainly drive geostrophic transport are essential for the phase transition of the El Niño‐Southern Oscillation (ENSO) induced by a recharge‐discharge process. The ENSO‐induced zonal wind stress anomaly also drives surface Ekman currents, which may counteract the geostrophic transport, but its effect
Tomoki Iwakiri, Masahiro Watanabe
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Offshore Ekman transport and Ekman pumping off Peru during the 1997-1998 El Niño [PDF]
Geophysical Research Letters, 2002 Satellite ocean vector wind measurements are used to describe onshore‐offshore Ekman transport and Ekman pumping/suction (i.e., downward/upward velocity) in the coastal ocean at 15°S off Peru, where upwelling is the dominant physical process. Normal and El Niño conditions are defined for May 1992 – April 1997 and May 1997 – May 1998, respectively ...
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Ekman transport patterns in the area close to the Galician coast (NW, Spain)
Vital, 2005 0
J M Cabañas, I Alvarez
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Nonlinear Damping of ITCZ Migrations Due to Ekman Ocean Energy Transport
Geophysical Research Letters, 2020 AbstractThe role of tropical wind‐driven ocean circulation in setting the position of the Intertropical Convergence Zone (ITCZ) is studied using an atmospheric model coupled to a slab ocean with parameterized Ekman energy transport. Unlike previous studies, the parameterized cross‐equatorial ocean energy transport, which is critical for the coupled ...
Hilla Afargan-Gerstman, Ori Adam
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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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