Results 11 to 20 of about 1,017 (205)

Geostrophic Transport in the Benguela Current Region [PDF]

open access: yesJournal of Physical Oceanography, 1989
Historical data from the region between the Greenwich meridian and the African continental shelf are used to compute the offshore geostrophic transport of the Benguela Current. At 32°S, the Benguela Current is located near the African coast, transporting about 21 Sv (1 Sv = 106 m3 s−1) of surface water toward the north relative to a potential density ...
Stramma, Lothar, Peterson, Ray G.
openaire   +2 more sources

A novel filtering method for geodetically determined ocean surface currents using deep learning

open access: yesEnvironmental Data Science, 2023
Determining an accurate picture of ocean currents is an important societal challenge for oceanographers, aiding our understanding of the vital role currents play in regulating Earth’s climate, and in the dispersal of marine species and pollutants ...
Laura Gibbs   +2 more
doaj   +1 more source

Sea surface height anomaly and geostrophic current velocity from altimetry measurements over the Arctic Ocean (2011–2020) [PDF]

open access: yesEarth System Science Data, 2023
Satellite altimetry missions flying over the ice-covered Arctic Ocean have opened the possibility of further understanding changes in the ocean beneath the sea ice.
F. Doglioni   +7 more
doaj   +1 more source

Observations of Upwelling and Downwelling Around Antarctica Mediated by Sea Ice

open access: yesFrontiers in Marine Science, 2022
We infer circumpolar maps of stress imparted to the ocean by the wind, mediated by sea-ice, in and around the Seasonal Ice Zone (SIZ) of Antarctica. In the open ocean we compute the wind stress using surface winds from daily atmospheric reanalyses and ...
Ali Ramadhan   +4 more
doaj   +1 more source

World ocean annual mean absolute geostrophic velocity on marine geoid of EIGEN‐6C4 from WOA13

open access: yesGeoscience Data Journal, 2022
This data set was established from two open sources: (a) geoid undulation (N) from EIGEN‐6C4, which is a static global combined gravity field model up to degree and order 2,190, and (b) ‘World ocean geostrophic velocity inverted from World Ocean Atlas ...
Peter C. Chu
doaj   +1 more source

Long-Term Trends and Interannual Variability of Wind Forcing, Surface Circulation, and Temperature around the Sub-Antarctic Prince Edward Islands

open access: yesRemote Sensing, 2022
In the Southern Ocean, the sub-Antarctic Prince Edward Islands (PEIs) play a significant ecological role by hosting large populations of seasonally breeding marine mammals and seabirds, which are particularly sensitive to changes in the surrounding ocean
Tesha Toolsee, Tarron Lamont
doaj   +1 more source

Real-time Reconstruction of Surface Velocities from Satellite Observations in the Alboran Sea

open access: yesRemote Sensing, 2020
Surface currents in the Alboran Sea are characterized by a very fast evolution that is not well captured by altimetric maps due to sampling limitations. On the contrary, satellite infrared measurements provide high resolution synoptic images of the ocean
Jordi Isern-Fontanet   +6 more
doaj   +1 more source

A conceptual view on inertial internal waves in relation to the subinertial flow on the central west Florida shelf

open access: yesScientific Reports, 2018
The study reported here focuses on inertial internal wave currents on the west Florida midshelf in 50 m depth. In situ observations showed that the seasonal shifts in stratification change both the frequency range of inertial internal waves and their ...
Ekaterina V. Maksimova
doaj   +1 more source

On Constraining the Mesoscale Eddy Energy Dissipation Time‐Scale

open access: yesJournal of Advances in Modeling Earth Systems, 2022
A physically plausible lower bound on the spatially varying geostrophic mesoscale eddy energy dissipation time‐scale within the ocean, related to the geographical energy transfer rate out of the geostrophic mesoscales, is provided by means of a simple ...
J. Mak   +6 more
doaj   +1 more source

Technical note: Two types of absolute dynamic ocean topography [PDF]

open access: yesOcean Science, 2018
Two types of marine geoid exist with the first type being the average level of sea surface height (SSH) if the water is at rest (classical definition), and the second type being satellite-determined with the condition that the water is usually not at ...
P. C. Chu
doaj   +1 more source

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