PS007
Observing the Ocean Surface Topography at High Resolution – opportunities and challenges for the future SWOT Mission

Session ID#: 84780

Session Description:
The future altimetry international Surface Water and Ocean Topography (SWOT) Mission to be launched in 2021 will make high-resolution 2D observations of sea-surface height (SSH) using SAR radar interferometry techniques at an unprecedented resolution of 15-40 km wavelength, depending on sea state conditions. These observations, with about one order of magnitude higher resolution than current altimetry products, will provide new opportunities to study the fine scale oceanic dynamics as well as internal tides and internal waves, and their role in connecting the interior of the ocean to the upper layer. The SWOT mission will be divided in two phases on different orbits. The first “fast sampling phase” is dedicated to mission calibration and science validation and will have a reduced spatial coverage but an enhanced temporal resolution (daily, and twice a day over track crossovers). The second phase (the nominal one) will map the entire earth up to 77.6° latitude, sampling a given location 2-6 times every 21 days.  This session will explore recent studies in understanding how fine scale SSH dynamics are linked to the sinks, sources and stirring of kinetic energy in the ocean, and to their related ecological and biogeochemical processes. The session encourages modeling and assimilation approaches, as well as studies of the in-situ or airborne experimental strategies to be deployed to observe these small-scale, rapidly evolving dynamics during both the fast sampling and the nominal phases.
Index Terms:

4520 Eddies and mesoscale processes [OCEANOGRAPHY: PHYSICAL]
4556 Sea level: variations and mean [OCEANOGRAPHY: PHYSICAL]
4560 Surface waves and tides [OCEANOGRAPHY: PHYSICAL]
4594 Instruments and techniques [OCEANOGRAPHY: PHYSICAL]

Primary Chair:  Rosemary Morrow, LEGOS CNRS/CNES/IRD/University Toulouse III, Toulouse, France
Co-chairs:  Lee-Lueng Fu, NASA Jet Propulsion Laboratory, Pasadena, CA, United States, J. Thomas Farrar, Woods Hole Oceanographic Inst, Department of Physical Oceanography, Woods Hole, MA, United States and Francesco d'Ovidio, LOCEAN, Paris, France
Primary Liaison:  Rosemary Morrow, LEGOS CNRS/CNES/IRD/University Toulouse III, Toulouse, France
 
Submesoscale Eddy Vertical Correlations and Dynamical Constraints from High-Resolution Numerical Simulations (636145)
Joseph Matthew D'Addezio1, Gregg Arthur Jacobs1, Max Yaremchuk2 and Innocent Souopgui3, (1)U.S. Naval Research Laboratory, Ocean Dynamics and Prediction, Stennis Space Center, MS, United States, (2)Naval Research Lab, Stennis Space Center, MS, United States, (3)The University of New Orleans, New Orleans, LA, United States
 
Directional Surface Wave Spectra from Point Measurements of Height and Slope (636943)
William J Plant, Retired, Washington, DC, United States and Mark A Donelan, University of Miami, RSMAS, Miami, FL, United States
 
Directional Wavenumber Spectrum of Internal Wave SSH Variance from Single Mooring Measurements (638657)
Weiguang Wu, University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States, Cesar B Rocha, Woods Hole Oceanographic Institution, Woods Hole, MA, United States and J. Thomas Farrar, Woods Hole Oceanographic Inst, Department of Physical Oceanography, Woods Hole, MA, United States
 
Analysis of High-resolution Sea-surface Measurements from Orbiting Satellites (638717)
Toshio Michael Chin1, Edward M Armstrong1, Dimitris Menemenlis2, Vardis M Tsontos1 and Jorge Vazquez1, (1)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (2)Jet Propulsion Laboratory, California Institute of Technology, CA, United States
 
Reconstructing the Ocean Interior from High-Resolution Sea Surface Information (641239)
Lei Liu1, Huijie Xue1 and Hideharu Sasaki2, (1)SCSIO South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China, (2)JAMSTEC, Yokohama, Japan
 
Leveraging surface drifters tracks for the identification of high frequency signatures in future wide-swath altimetric data (641292)
Zoé Caspar-Cohen, Ifremer, Plouzané, France, Aurelien Ponte, CNRS-IFREMER-IRD-UBO, LOPS, Plouzané, France, Xiaolong Yu, IFREMER, Laboratoire d’Océanographie Physique et Spatiale, Brest, France, Noe Lahaye, LOPS, IUEM, University of Brest, Brest, France and Sylvie Le Gentil, Laboratoire de Physique des Océans, Brest, France
 
Tropical Upper Ocean Unbalanced Motions: Their Observed Characteristics and Implication for the SWOT Mission (642104)
Bo Qiu, University of Hawaii at Manoa, Honolulu, HI, United States, Shuiming Chen, Univ Hawaii Manoa, Honolulu, HI, United States and Patrice Klein, Cnrs/Ifremer/LOPS, Plouzané, France
 
Observations of the transition scale from balanced to unbalanced motions in the eastern tropical Pacific from historical ship data (642705)
Saulo M Soares1, Sarah T Gille2, Teresa K Chereskin3, Eric Firing4, Julia M Hummon5 and Cesar B Rocha1, (1)Scripps Institution of Oceanography, UCSD, La Jolla, CA, United States, (2)UCSD, La Jolla, CA, United States, (3)SIO/UCSD, La Jolla, CA, United States, (4)University of Hawaii at Manoa, Department of Oceanography, Honolulu, HI, United States, (5)Univ Hawaii, Honolulu, HI, United States
 
Multiscale Data Assimilation for SWOT Ocean Application (643707)
Jinbo Wang, Zhijin Li and Lee-Lueng Fu, NASA Jet Propulsion Laboratory, Pasadena, CA, United States
 
An Approach to Empirical Mapping of Incoherent Internal Tides for SWOT (643899)
Svetlana Erofeeva and Gary D Egbert, Oregon State University, College of Earth, Ocean & Atmospheric Sciences, Corvallis, OR, United States
 
Impact of tides on North and Equatorial Atlantic HYCOM simulations from 1/12° to 1/50° (646456)
Eric Chassignet, Xiaobiao Xu and Alan J Wallcraft, Florida State University, Center for Ocean-Atmospheric Prediction Studies, Tallahassee, FL, United States
 
Airborne Ocean Topography Measurements in Support of the SWOT Mission (646694)
Nick Statom, Scripps Institution of Oceanography, UCSD, La Jolla, CA, United States, Luc Lenain, Scripps Institution of Oceanography, La Jolla, CA, United States and Wallace Kendall Melville, Univ California San Diego, La Jolla, CA, United States
 
Seasonality and spatial dependence of meso- and submesoscale ocean currents from along-track altimetry data (647023)
Albion Lawrence, Brandeis University, Waltham, MA, United States and Jörn Callies, California Institute of Technology, Pasadena, CA, United States
 
Assessing the impact of along-track altimetry data on ocean state estimation in the SWOT Cal/Val region off the California coast via data assimilation (647371)
Zhijin Li1, Jinbo Wang2, Matthew R Archer3 and Lee-Lueng Fu2, (1)Jet Propulsion Laboratory, Pasadena, CA, United States, (2)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (3)NASA Jet Propulsion Laboratory, Pasadena, United States
 
Surface Kinetic Energy Distributions in the Global Oceans From a High‐Resolution Numerical Model and Surface Drifter Observations (647393)
Xiaolong Yu, IFREMER, Laboratoire d’Océanographie Physique et Spatiale, Brest, France, Aurelien Ponte, CNRS-IFREMER-IRD-UBO, LOPS, Plouzané, France, Shane Elipot, University of Miami, Rosenstiel School of Marine and Atmospheric Science, Miami, FL, United States, Dimitris Menemenlis, NASA Jet Propulsion Laboratory, Pasadena, CA, United States, Edward Zaron, Portland State University, Portland, OR, United States and Ryan Abernathey, Lamont -Doherty Earth Observatory, Palisades, NY, United States
 
Finescale horizontal and vertical currents from in-situ observations in preparation for SWOT altimeter mission (650208)
Ananda Pascual1, Simon Ruiz1, Bàrbara Barceló-Llull2, Antonio Sanchez-Roman1, Evan Mason3, Eugenio Cutolo1, Daniel R . Tarry1, Helena Antich1, Laura Gomez-Navarro1,4, Said Ouala5, Baptiste Mourre6, Yannice Faugere7, Ronan Fablet5, Joaquin Tintore1,8, Amala Mahadevan9 and Francesco d'Ovidio10, (1)IMEDEA(CSIC-UIB), Esporles, Spain, (2)Applied Physics Laboratory, University of Washington, Seattle, WA, United States, (3)Applied Physics Laboratory University of Washington, Seattle, United States, (4)Institut des Géosciences de l'Environnement, CNRS/Univ. Grenoble Alpes/G-INP/IRD, Grenoble, France, (5)IMT Atlantique, France, (6)Balearic Islands Coastal Observing and Forecasting System (SOCIB), Palma, Spain, (7)Collecte Localisation Satellites, Ramonville Saint-Agne, France, (8)SOCIB, Palma, Spain, (9)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (10)LOCEAN, Paris, France
 
Recent advancements on the characterization of sub-mesoscale variability using satellite altimetry (650283)
Oscar Vergara1, Rosemary Morrow2, Marie-Isabelle Pujol3, Clement Ubelmann1, Gérald Dibarboure4 and Yannice Faugere5, (1)CLS Collecte Localisation Satellites, Toulouse, France, (2)LEGOS CNRS/CNES/IRD/University Toulouse III, Toulouse, France, (3)CLS Collecte Localisation Satellites, Ramonville Saint-Agne, France, (4)CNES French National Center for Space Studies, Toulouse Cedex 09, France, (5)Collecte Localisation Satellites, Ramonville Saint-Agne, France
 
What will be the finest resolved scale of SWOT SSH data under different dynamical conditions ? (650536)
Laura Gomez-Navarro1,2, Emmanuel Cosme2, Julien Lesommer2, Nicolas Papadakis3, Jean-Marc. Molines2, Ananda Pascual1, Brian K Arbic4, Adekunle O. Ajayi2, Aurélie Albert2, Dimitris Menemenlis5, Jay F Shriver6, James G Richman7, Anna Savage8 and Ji Ye4, (1)IMEDEA(CSIC-UIB), Esporles, Spain, (2)Institut des Géosciences de l'Environnement, CNRS/Univ. Grenoble Alpes/G-INP/IRD, Grenoble, France, (3)Institut de Mathématiques de Bordeaux, Bordeaux, France, (4)University of Michigan, Earth and Environmental Sciences, Ann Arbor, MI, United States, (5)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (6)Naval Research Laboratory, Stennis Space Center, Stennis Space Center, MS, United States, (7)Florida State University, COAPS, Tallahassee, FL, United States, (8)Scripps Institution of Oceanography, La Jolla, CA, United States
 
Seasonality and Amplification of the Sea Surface Signature of Internal Tides (650854)
Noe Lahaye1, Jonathan Gula2 and Guillaume Roullet1, (1)LOPS, IUEM, University of Brest, Brest, France, (2)University of Brest, Laboratoire d’Océanographie Physique et Spatiale, Brest, France
 
Importance of damping in comparison of internal tides in several global hydrodynamical models with altimetry (651707)
Joseph K Ansong1, Brian K Arbic2, Dimitris Menemenlis3, Alan J Wallcraft4, Romain Bourdalle-Badie5, Jerome Chanut6, Frederic Briol7, Michael Schindelegger8, Richard Ray9, Eric P. Chassignet10, Robert Hallberg11, Loren Carrère12, Gérald Dibarboure13, Nicolas Picot13, Maarten C Buijsman14, James G Richman15, Jay F Shriver16, Christopher N Hill17, Matthew R Mazloff18, Rui M Ponte19, Ariane Koch-Larrouy20, Florent Lyard20 and An T Nguyen21, (1)University of Ghana, Department of Mathematics, Accra, Ghana, (2)University of Michigan, Earth and Environmental Sciences, Ann Arbor, MI, United States, (3)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (4)Florida State University, Center for Ocean-Atmospheric Prediction Studies, Tallahassee, FL, United States, (5)Mercator Ocean international, Ramonville Saint-Agne, France, (6)Mercator Ocean International, Ramonville Saint-Agne, France, (7)Collecte Localisation Satellites, Ramonville-Saint-Agne, France, (8)University of Bonn, Institute of Geodesy and Geoinformation, Bonn, Germany, (9)NASA Goddard Space Flight Center, Geodesy & Geophysics Lab, Greenbelt, MD, United States, (10)Center for Ocean-Atmospheric Prediction Studies, Florida State University, Tallahassee, FL, United States, (11)NOAA Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States, (12)CLS, Ramonville Saint-Agne, France, (13)CNES French National Center for Space Studies, Toulouse Cedex 09, France, (14)University of Southern Mississippi, Stennis Space Center, MS, United States, (15)Naval Research Lab Stennis Space Center, Stennis Space Center, MS, United States, (16)Naval Research Laboratory, Stennis Space Center, Stennis Space Center, MS, United States, (17)MIT, MA, (18)SIO, La Jolla, CA, United States, (19)Atmospheric and Environmental Research, Lexington, MA, United States, (20)LEGOS, Toulouse, France, (21)University of Texas at Austin, Institute of Computational Engineering and Sciences, Austin, TX, United States
 
The Ocean Mesoscale Regime of the Reduced-Gravity Quasi-Geostrophic Model (652522)
Roger M Samelson, Oregon State Univ, Corvallis, OR, United States, Dudley B Chelton Jr, Oregon State University, Corvallis, OR, United States and Michael Schlax, Oregon State University, Corvallis, United States
 
The Importance of Remote Forcing for Regional Modeling of Internal Waves (652586)
Matthew R Mazloff1, Bruce D Cornuelle1, Sarah T Gille2 and Jinbo Wang3, (1)University of California San Diego, La Jolla, CA, United States, (2)UCSD, La Jolla, CA, United States, (3)NASA Jet Propulsion Laboratory, Pasadena, CA, United States
 
Low-mode internal tides and small scale surface dynamics in the SWOT cal/val region (652677)
Anna Savage1, Amy Frances Waterhouse1, Jennifer A MacKinnon1, Jonathan D Nash2, Samuel Maurice Kelly3, Zhongxiang Zhao4, Justin Shapiro5, Andrew J. Lucas6, Louis St Laurent5, Matthias J Lankhorst7 and Uwe Send8, (1)Scripps Institution of Oceanography, La Jolla, CA, United States, (2)Oregon State Univ, Corvallis, OR, United States, (3)Massachusetts Institute of Technology, Sommerville, MA, United States, (4)University of Washington, (5)Applied Physics Laboratory University of Washington, Seattle, WA, United States, (6)University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States, (7)UCSD, La Jolla, CA, United States, (8)University of California, San Diego, CA, United States
 
High Spatial Resolution Mesoscale Oceanic Variability from Non-repeat Satellite Altimetry (654019)
Yao Yu, Scripps Institution of Oceanography, La Jolla, United States, David T Sandwell, Scripps Institution of Oceanography, Institute of Geophysics and Planetary Physics, La Jolla, CA, United States and Sarah T Gille, UCSD, La Jolla, CA, United States
 
Global observational constraints on surface ocean kinetic energy (654227)
Shane Elipot, University of Miami, Rosenstiel School of Marine and Atmospheric Science, Miami, FL, United States, Jonathan M Lilly, Theiss Research, La Jolla, CA, United States, Rick Lumpkin, NOAA/AOML, Miami, FL, United States and Edward Zaron, Portland State University, Portland, OR, United States
 
Revealing the surface signature of internal tides using deep neural networks (655243)
Michael Poon, University of Toronto, Physics, Astronomy and Astrophysics, Toronto, ON, Canada, Nicolas Grisouard, University of Toronto, Physics, Toronto, ON, Canada, Alice Nuz, University of Toronto, Engineering Science, Toronto, ON, Canada, Hesam Salehipour, WHOI, Woods Hole, MA, United States and Aurelien Ponte, CNRS-IFREMER-IRD-UBO, LOPS, Plouzané, France
 
Sea level anomalies using altimetry, model and tide gauges along the African coasts in the Eastern Tropical Atlantic Ocean: inter-comparison and temporal variability (655531)
Isabelle Dadou1, Habib Dieng2, Fabien Leger2, Yves Morel3, Julien Jouanno4, Florent Lyard2 and Damien Allain2, (1)LEGOS, Toulouse Cedex 9, France, (2)LEGOS, Toulouse, France, (3)Laboratoire d’Etudes Géophysiques et d’Océanographie Spatiale, LEGOS – UMR 5566 CNES-CNRS-IRD-UPS, Toulouse, France, (4)Observatory Midi-Pyrenees, Toulouse, France
 
Submesoscale to Mesoscale Variability in the California Current: Implications for SWOT (656284)
Kyla Drushka, Applied Physics Laboratory University of Washington, Seattle, WA, United States, Luc Rainville, University of Washington, Seattle, WA, United States and Dimitris Menemenlis, NASA Jet Propulsion Laboratory, Pasadena, CA, United States
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