Results 1 to 10 of about 169,696 (300)

Ocean surface currents estimated from satellite remote sensing data based on a global hexagonal grid

open access: yesInternational Journal of Digital Earth, 2023
Global ocean surface currents estimated from satellite derived data based on a regular global grid are affected by the grid’s shape and placement.
Wenbo Wang   +4 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

Ocean Wind and Current Retrievals Based on Satellite SAR Measurements in Conjunction with Buoy and HF Radar Data

open access: yesRemote Sensing, 2017
A total of 168 fully polarimetric synthetic-aperture radar (SAR) images are selected together with the buoy measurements of ocean surface wind fields and high-frequency radar measurements of ocean surface currents.
He Fang   +5 more
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

Dual-Polarized Backscatter Features of Surface Currents in the Open Ocean during Typhoon Lan (2017)

open access: yesRemote Sensing, 2018
Ocean surface current measurements from satellites have historically been limited. We propose a new approach to detect ocean surface currents as observed by dual-polarized (VV and VH) spaceborne synthetic aperture radar (SAR).
Guosheng Zhang, William Perrie
doaj   +1 more source

Wind work at the air-sea interface: a modeling study in anticipation of future space missions [PDF]

open access: yesGeoscientific Model Development, 2022
Wind work at the air-sea interface is the transfer of kinetic energy between the ocean and the atmosphere and, as such, is an important part of the ocean-atmosphere coupled system.
H. S. Torres   +16 more
doaj   +1 more source

GEST Ocean Surface Current

open access: yes, 2023
GEST Ocean Surface Current product is an estimation of ocean surface current at 15 m depth based on multi-scale physical processes, including geostrophic and Ekman currents, wave-induced tidal currents and Stokes drift. This global daily product covers the period of 2013-2019, with a 0.25° spatial resolution, and is likely to be a good indicator of the
openaire   +1 more source

On the Factors Driving Upper-Ocean Salinity Variability at the Western Edge of the Eastern Pacific Fresh Pool [PDF]

open access: yesOceanography, 2019
The tropical Eastern Pacific Fresh Pool (EPFP) has some of the highest precipitation rates and lowest sea surface salinities found in the open ocean. In addition, the sea surface salinity in the EPFP exhibits one of the strongest annual cycles in the ...
J. Thomas Farrar, Albert J. Plueddemann
doaj   +1 more source

Surface Gravity Wave Interferometry and Ocean Current Monitoring With Ocean‐Bottom DAS

open access: yesJournal of Geophysical Research: Oceans, 2022
AbstractThe cross‐correlation of a diffuse or random wavefield at two points has been demonstrated to recover an empirical estimate of the Green's function under a wide variety of source conditions. Over the past two decades, the practical development of this principle, termed ambient noise interferometry, has revolutionized the fields of seismology ...
Ethan F. Williams   +6 more
openaire   +3 more sources

The Particulate Organic Carbon-to-Nitrogen Ratio Varies With Ocean Currents

open access: yesFrontiers in Environmental Science, 2021
Ocean currents could adjust ocean carbon and nitrogen composition which are an important part of the global carbon and nitrogen cycle. We procured global concentrations of particulate carbon and nitrogen in different depths, classified them according to ...
Shengjun Xiao   +9 more
doaj   +1 more source

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