Articles | Volume 15, issue 4
https://doi.org/10.5194/os-15-1091-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-15-1091-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
On the resolutions of ocean altimetry maps
Maxime Ballarotta
CORRESPONDING AUTHOR
Collecte Localisation Satellites, 31520 Ramonville-Saint-Agne, France
Clément Ubelmann
Collecte Localisation Satellites, 31520 Ramonville-Saint-Agne, France
Marie-Isabelle Pujol
Collecte Localisation Satellites, 31520 Ramonville-Saint-Agne, France
Guillaume Taburet
Collecte Localisation Satellites, 31520 Ramonville-Saint-Agne, France
Florent Fournier
Collecte Localisation Satellites, 31520 Ramonville-Saint-Agne, France
Jean-François Legeais
Collecte Localisation Satellites, 31520 Ramonville-Saint-Agne, France
Yannice Faugère
Collecte Localisation Satellites, 31520 Ramonville-Saint-Agne, France
Antoine Delepoulle
Collecte Localisation Satellites, 31520 Ramonville-Saint-Agne, France
Dudley Chelton
College of Earth, Ocean and Atmospheric Sciences, Oregon State
University, Corvallis, OR, USA
Gérald Dibarboure
Centre National d'Études Spatiales, 31400 Toulouse, France
Nicolas Picot
Centre National d'Études Spatiales, 31400 Toulouse, France
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162 citations as recorded by crossref.
- Airborne observations of fast-evolving ocean submesoscale turbulence H. Torres et al.
- Surface and Interior Dynamics of Arctic Seas Using Surface Quasi-Geostrophic Approach M. Umbert et al.
- Accurate Tide Monitoring Using Shipborne GNSS-R Phase Altimetry: A Case Study Y. He et al.
- Intercomparison of Data-Driven and Learning-Based Interpolations of Along-Track Nadir and Wide-Swath SWOT Altimetry Observations M. Beauchamp et al.
- Regional modeling of internal-tide dynamics around New Caledonia – Part 1: Coherent internal-tide characteristics and sea surface height signature A. Bendinger et al.
- Drifting Speed of Lagrangian Fronts and Oil Spill Dispersal at the Ocean Surface G. Fifani et al.
- Influence of Nonseasonal River Discharge on Sea Surface Salinity and Height H. Chandanpurkar et al.
- Frontal Dynamics in the Alboran Sea: 1. Coherent 3D Pathways at the Almeria‐Oran Front Using Underwater Glider Observations N. Zarokanellos et al.
- Ocean Circulation from Space R. Morrow et al.
- Internal tides off the Amazon shelf in the western tropical Atlantic: analysis of SWOT Cal/Val mission data M. Tchilibou et al.
- Regional daily sea level maps from Multi-mission Altimetry using Space–time Window Kriging M. Juhl et al.
- Estimating Three‐Dimensional Structures of Eddy in the South Indian Ocean From the Satellite Observations Based on the isQG Method Z. Chen et al.
- Long-wavelength steric sea level and heat storage anomaly maps to 2000 m by combining Argo temperature and salinity profiles with satellite altimetry and gravimetry D. Chambers & S. Reinelt
- Increasing the Space–Time Resolution of Mapped Sea Surface Height From Altimetry M. Archer et al.
- Intense and localized export of selected marine snow types at eddy edges in the South Atlantic Ocean A. Accardo et al.
- Integration of HF Radar Observations for an Enhanced Coastal Mean Dynamic Topography A. Caballero et al.
- Integrating wide-swath altimetry data into Level-4 multi-mission maps M. Ballarotta et al.
- Detecting global ocean subsurface density change with high-resolution via dual-task densely-former H. Su et al.
- Enhanced upward heat transport at deep submesoscale ocean fronts L. Siegelman et al.
- Evaluation of the sub-annual sea level anomalies in the continental shelf of the Southwestern Atlantic and their relation to wind variability M. Juhl et al.
- Assessing the impact of future altimeter constellations in the Met Office global ocean forecasting system R. King et al.
- Data-driven forecasting insights into ocean mesoscale eddy genesis inferred from sea level anomaly Y. Shi et al.
- Blending 2D topography images from the Surface Water and Ocean Topography (SWOT) mission into the altimeter constellation with the Level-3 multi-mission Data Unification and Altimeter Combination System (DUACS) G. Dibarboure et al.
- A view of the Brazil-Malvinas confluence, March 2015 D. Orúe-Echevarría et al.
- A diagnosis of surface currents and sea surface heights in a coastal region E. Lee & S. Kim
- On the potential of mapping sea level anomalies from satellite altimetry with Random Forest Regression M. Passaro & M. Juhl
- The CNES CLS 2022 Mean Sea Surface: Short Wavelength Improvements from CryoSat-2 and SARAL/AltiKa High-Sampled Altimeter Data P. Schaeffer et al.
- Advancing Sea Surface Height Retrieval through Global Navigation Satellite System Reflectometry: A Model Interaction Approach with Cyclone Global Navigation Satellite System and FengYun-3E Measurements J. Xing et al.
- Surface Currents and Significant Wave Height Gradients: Matching Numerical Models and High‐Resolution Altimeter Wave Heights in the Agulhas Current Region G. Marechal & F. Ardhuin
- Evaluation of SWOT Beta Geophysical Products in the Indian Region During CAL-VAL Phase over the Land and Oceans A. Chaudhary et al.
- Coastal-to-offshore submesoscale horizontal stirring enhances wintertime phytoplankton blooms in the ultra-oligotrophic Eastern Mediterranean Sea Y. Fadida et al.
- Mesoscale Variability Linked to Interannual Displacement of Gulf Stream Y. Guo et al.
- The Analysis of North Brazil Current Rings from Automatic Identification System Data and Altimetric Currents B. Boussidi et al.
- VarDyn: Dynamical Joint‐Reconstructions of Sea Surface Height and Temperature From Multi‐Sensor Satellite Observations F. Le Guillou et al.
- A Two-Dimensional Variational Scheme for Merging Multiple Satellite Altimetry Data and Eddy Analysis X. Jiang et al.
- Advances in surface water and ocean topography for fine-scale eddy identification from altimeter sea surface height merging maps in the South China Sea X. Zhang et al.
- Improved Surface Currents from Altimeter-Derived and Sea Surface Temperature Observations: Application to the North Atlantic Ocean D. Ciani et al.
- Topographically Trapped Waves Around South America With Periods Between 40 and 130 Days in a Global Ocean Reanalysis L. Poli et al.
- Synthesizing Sea Surface Temperature and Satellite Altimetry Observations Using Deep Learning Improves the Accuracy and Resolution of Gridded Sea Surface Height Anomalies S. Martin et al.
- Variability of surface gravity wave field over a realistic cyclonic eddy G. Marechal & C. de Marez
- Sea Surface Height Variability in the 30–120 km Wavelength Band From Altimetry Along‐Track Observations S. Chen & B. Qiu
- Verification of eddy properties in operational oceanographic analysis systems G. Smith & A. Fortin
- Geostrophy Assessment and Momentum Balance of the Global Oceans in a Tide‐ and Eddy‐Resolving Model X. Yu et al.
- A data-driven wind-to-current response function and application to ocean surface current estimates C. Ubelmann et al.
- Ocean Currents Reconstruction from a Combination of Altimeter and Ocean Colour Data: A Feasibility Study D. Ciani et al.
- Structure and Circulation of Atlantic Water Masses in the St. Anna Trough in the Kara Sea A. Osadchiev et al.
- Island Mass Effect: A Review of Oceanic Physical Processes C. De Falco et al.
- Improving the Altimeter-Derived Surface Currents Using Sea Surface Temperature (SST) Data: A Sensitivity Study to SST Products D. Ciani et al.
- The Observed Agulhas Retroflection Behaviors During 1993–2018 Y. Zhu et al.
- Downscaling of ocean fields by fusion of heterogeneous observations using Deep Learning algorithms S. Thiria et al.
- Comparison of a global high-resolution ocean data assimilation system with SWOT observations E. Fouchet et al.
- Has the Gulf Stream Slowed or Shifted in the Altimetry Era? L. Chi et al.
- Spatial and temporal variability of the Agulhas Retroflection: Observations from a new objective detection method C. Russo et al.
- A Deep Learning Approach to Spatiotemporal Sea Surface Height Interpolation and Estimation of Deep Currents in Geostrophic Ocean Turbulence G. Manucharyan et al.
- Assimilation of Surface Geostrophic Currents in the East Sea Using the Ensemble Kalman Filter J. Choi et al.
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Saved (final revised paper)
Latest update: 29 Apr 2026
Short summary
This study investigates the resolving capabilities of the DUACS gridded products delivered through the CMEMS catalogue. Our method is based on the noise-to-signal ratio approach. While altimeter along-track data resolve scales on the order of a few tens of kilometers, we found that the merging of these along-track data into continuous maps in time and space leads to effective resolution ranging from ~ 800 km wavelength at the Equator to 100 km wavelength at high latitude.
This study investigates the resolving capabilities of the DUACS gridded products delivered...