Results 191 to 200 of about 2,215,057 (219)
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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Meridional Ekman Heat Transport: Estimates from Satellite Data
Journal of Physical Oceanography, 1995Abstract Analyses of satellite-derived SSM/I winds and AVHRR sea surface temperatures are used to compute weekly estimates of global meridional ocean Ekman heat transport for the 4-year period 1987–1991. The heat transport is consistently poleward throughout the year over the Atlantic and much of the Pacific between 30°S and 30°N and equatorward at ...
Judith E. Ghirardelli +2 more
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The transport in the Ekman surface layer on the spherical Earth
Journal of Marine Research, 2002The modification of the transport in the Ekman layer on the f-plane due to the Coriolis parameter’s variation with latitude and the curvature of Earth’s surface is analyzed by considering the temporal changes in the angular momentum. The latter plays the role of a dynamical variable of the model, replacing the zonal velocity component, and drag is ...
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The Balance of Geostrophic and Ekman Transports in the Tropical Atlantic Ocean
Journal of Physical Oceanography, 1983Abstract Hydrographic station data from 24°N, 8°N, 8°S and 24°S in the Atlantic Ocean are used to calculate geostrophic transport in eight layers separated by isopycnal surfaces. In the upper ocean, the geostrophic transport is strongly northward across 8°S and strongly southward across 8°N resulting in a geostrophic convergence of ∼25 × 106 m2 s−1 in ...
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Effects of Ekman Transport on the NAO Response to a Tropical Atlantic SST Anomaly
Journal of Climate, 2006Abstract A recent study showed that a tropical Atlantic sea surface temperature (SST) anomaly induces a significant coupled response in late winter [February–April (FMA)] in a coupled model, in which an atmospheric general circulation model is coupled to a slab mixed layer ocean model (AGCM_ML). The coupled response comprises a dipole in
Shiling Peng +3 more
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Spatiotemporal distribution of Ekman mass transport and Ekman pumping velocity in the Savu sea
AIP Conference Proceedings, 2023Florence Mila Purnomo +4 more
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The Role of Ekman Ocean Heat Transport in the Northern Hemisphere Response to ENSO
Journal of Climate, 2008Abstract The influence of oceanic Ekman heat transport (Qek) on air–sea variability associated with ENSO teleconnections is examined via a pair of atmospheric general circulation model (AGCM) experiments. In the mixed layer model (MLM) experiment, observed sea surface temperatures (SSTs) for the years 1950–99 are specified over the ...
Michael A. Alexander, James D. Scott
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A 2.5D Model for Sand Transport in a Shallow Sea: Effect of Ekman Veering
Continental Shelf Research, 2004Abstract A process-based sediment transport model is presented that combines the knowledge of sediment transport in rivers and estuaries with the understanding of physical processes specific for the shelf seas. Due to formation of bottom Ekman spiral, the near-bottom current and hence the sediment transport deviate from the direction of surface ...
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The Time-varying Characteristics of the Meridional Ekman Heat Transport for the World Ocean
Journal of Physical Oceanography, 1993Abstract The time-varying meridional Ekman heat transport for the World Ocean is calculated for the 30-year period 1960–1989 using wind stress and sea surface temperature data from the Comprehensive Ocean–Atmosphere Data Set The average monthly heat transports are dominated by poleward transport of heat in the tropical Pacific and Atlantic oceans.
David Adamec +2 more
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Pollutant Dispersion in the Ekman Layer Using Moment-Reduced Transport Equations
1983The program MODIS (Moment Distribution) is designed to extend the Gaussian plume model up to the range of about 102 km. Numerical experiments with stationary solutions are reported to show reliability and accuracy (essentially dependent on the grid Peclet number) of the results. The influence of the Coriolis force on the ground centre line of the plume
D. Eppel +3 more
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