Results 71 to 80 of about 324 (153)
Global Submesoscale Ocean Dynamics Unveiled by Wide-Swath Satellite Altimetry
Abstract Ocean submesoscale (1–100 km) processes and their significant impact on Earth’s climate system have been increasingly emphasized in recent decades by high-resolution numerical models and regional observations. However, the dynamics and energy associated with these processes, including submesoscale eddies and small-wavelength nonlinear ...
Matthew Archer +3 more
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A Study on the Assimilation of Swath Altimetry Data into a Global Hydrodynamic Model
A Study on the Assimilation of Swath Altimetry Data into a Global Hydrodynamic ModelLimitations of the in-situ observations and the hydrodynamic modeling make it difficult to assess the water resources accurately.Recent advances in satellite technology have enabled estimation hydrodynamic characteristics from remote sensing data. Data assimilation methods were increasingly used to correct hydrodynamic model forecasts with the use of ...
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Remote SensingEddy identification and tracking are essential for understanding ocean dynamics. This study employed the elliptical Gaussian function (EGF) simulations and the py-eddy-tracker (PET) algorithm, validated by Surface Velocity Program (SVP) drifter data, to ...
Lan Zhang +4 more
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Inversion of Sea Surface Currents From Satellite‐Derived SST‐SSH Synergies With 4DVarNets
Journal of Advances in Modeling Earth SystemsSatellite altimetry offers a unique approach for direct sea surface current observation, but it is limited to measuring the surface‐constrained geostrophic component.
R. Fablet +3 more
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Progress and Outlook on SWOT Satellite Applications for Hydrological Monitoring
Renmin ZhujiangHydrological monitoring is fundamental for understanding the spatiotemporal variability of surface water and for supporting water-resources management, flood-risk assessment, ecological protection, and water-security planning.
MA Ju, ZHA Dawei, ZHONG Ming
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Remote SensingClimate wave data, derived from significant wave height (SWH) altimetry, provide accurate information towards nearshore and coastal areas. Their use is crucial to enhance our capabilities of observing, understanding, and forecasting storm waves, even in ...
Emma Imen Turki +8 more
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Block-Circulant Approximation of the Precision Matrix for Assimilating SWOT Altimetry Data
Remote SensingThe recently deployed Surface Water and Ocean Topography (SWOT) mission for the first time has observed the ocean surface at a spatial resolution of 1 km, thus giving an opportunity to directly monitor submesoscale sea surface height (SSH) variations ...
Max Yaremchuk +3 more
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Contribution of the wide-swath altimetry mission SWOT to improve large-scale hydrological modeling
, 2017 Scientific objective of this PhD work is to improve water fluxes estimation on the continental surfaces, at interanual and interseasonal scale (from few years to decennial time period). More specifically, it studies contribution of remotely-sensed measurements to improve hydrology model.
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Geophysical Research LettersOcean state estimates that represent mesoscale and submesoscale dynamics are crucial for climate research and ocean forecasting. Accurate submesoscale representation in ocean models is a current challenge due to rapidly evolving flow and lack of ...
C. Kerry +4 more
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Wide-swath satellite altimetry unveils an unprecedented panorama of oceanic internal gravity waves
Abstract As pervasive carriers of mechanical energy through the stratified ocean, internal gravity waves (IGWs) regulate global circulation and Earth’s climate via driving diapycnal mixing. Yet, obtaining a basin-wide, full-spectrum view of IGWs has long been impractical in the real ocean, as it demands high-resolution observations ...
Zhiyu Liu +4 more
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