SWOT Regional Validation Working Group

This working group focuses on validating SWOT measurements using independent measurements in the context of ocean processes.

• Co-chairs: Louise Rousselet [email protected], Martin Saraceno [email protected], Sebastiaan Swart [email protected], Ananda Pascual [email protected], Benoit Legresy [email protected], Jinbo Wang [email protected]

• Officer: Tosca Ballerini [email protected]

• Please contact Tosca or Jinbo to sign up the email list. [email protected]

• Working Group conversations: https://groups.google.com/a/lists.tamu.edu/g/swot-regional-validation

Links

• International CLIVAR Adopt-A-Crossover consortium
• SWOT
• SWOT on AVISO
• SWOT on PO.DAAC

Publication list

Published in 2025 or submitted with PDF files

1. Archer M., Wang J., Klein P., Dibarboure G., Fu L-L. (2025). Wide-swath satellite altimetry unveils global submesoscale ocean dynamics. Nature 640, 691–696. Link
2. Carli E. (2025). A fine satellite view of ocean dynamics. Nature 640, 609-610 (2025). Link
3. Carli E. et al. (in review) Small-scale eddy diagnostics around the Southern Ocean Polar Front with SWOT Link
4. Coadou‐Chaventon, S., Swart, S., Novelli, G., & Speich, S. (2025). Resolving sharper fronts of the Agulhas Current Retroflection using SWOT altimetry. Geophysical Research Letters, 52, e2025GL115203. Link
5. Cutolo E., J. Wang, R. Fablet and C. Granero – Simulation Informed Generative AI Ocean Analysis: Application to SWOT KaRIN Noise submitted to GRL Preprint link
6. Duranson, M., Berline, L., Guilloux, L., Della Penna, A., Ohman, M. D., Gastauer, S., Cotte, C., Banaru, D., Garcia, T., Berta. M., Doglioli A., Grégori, G., d’Ovidio, F., Carlotti, F. (2025). Fine scale zooplankton distribution across the North Balearic Front during late spring. EGUsphere Preprint
7. Fouchet, E., Benkiran, M., Le Traon, P. Y. & Remy, E. Comparison of a global high-resolution ocean data assimilation system with SWOT observations. Front. Mar. Sci. 12, (2025). Link
8. Garcia, T., Oms, L., Milhaud, X., Doglioli, A., Messié, M., Vandekerkhove, P., Lacour, C., Grégori, G., Pommeret, D. (2025). A statistical approach to unveil phytoplankton adaptation to ocean fronts. Link
9. Hay, A., C. Watson, B. Legresy, M. King, and J. Beardsley, (2025). Small scale variability in the wet troposphere impacts the interpretation of SWOT satellite observations. Geophysical Research Letters, 2024GL112778. Link
10. Kachelein et al. (2025) Sub-100 km Ocean Processes Revealed by Structure Functions of SWOT Sea Surface Height and In Situ Observing Network (submitted, Link)
11. Tchonang B. et al. SWOT Geostrophic Velocity Validation against in-situ measurements in the California Current. Preprint link
12. Tranchant, Y.T., B. Legresy, B. Pena Molino, A, Foppert, H.E. Phillips. SWOT reveals fine-scale balanced motions and dispersion properties in the Antarctic Circumpolar Current (2025) Link
13. Verger-Miralles et al. SWOT enhances small-scale intrathermocline eddy detection submitted to GRL Preprint
14. Wang J. et al. (2025) SWOT sub-100km science validation (submitted to GRL) Preprint Code Data

Published in 2024

15. Ardhuin, F., Molero, B., Bohé, A., Nouguier, F., Collard, F., Houghton, I., et al. (2024). Phase-resolved swells across ocean basins in SWOT altimetry data: Revealing centimeter-scale wave heights including coastal reflection. Geophysical Research Letters, 51, e2024GL109658. link
16. Bohé, A., Chen, A., Chen, C., Dubois, P., Fore, A., Molero, B., Peral, E., Raynal, M., Stiles, B., Ardhuin, F., Hay, A., Legresy, B., Lenain, L., Villas Boas, A.B. (2024) Measuring significant wave height fields in two dimensions at kilometric scale with SWOT. IEEE TGRS. link to the paper
17. Carli, E., Siegelman, L., Morrow, R., & Vergara, O. (2024). Surface quasi geostrophic reconstruction of vertical velocities and vertical heat fluxes in the Southern Ocean: Perspectives for SWOT. Journal of Geophysical Research: Oceans, 129(9), e2024JC021216. Link
18. Du, T., & Jing, Z. (2024). Fine-Scale Eddies Detected by SWOT in the Kuroshio Extension. Remote Sensing, 16(18), 3488. link
19. Zhang, Z., Miao, M., Qiu, B., Tian, J., Jing, Z., Chen, G., et al. (2024). Submesoscale Eddies Detected by SWOT and Moored Observations in the Northwestern Pacific. Geophysical Research Letters, 51(15), e2024GL110000. Link

Pubslished in 2023

20. Carli, E., Morrow, R., Vergara, O., Chevrier, R., & Renault, L. (2023). Ocean 2D eddy energy fluxes from small mesoscale processes with SWOT. Ocean Science, 19(5), 1413-1435. [Link] (https://doi.org/10.5194/os-19-1413-2023)

Submitted or in prep

21. Akpinar, A., Orek, H., Fach, B.A. (in preparation). Fine-scale dynamics in the Black Sea detected by SWOT
22. Coadou-Chaventon, S.,  Carli, E., Swart, S.,  Speich, S. Siegelman, L. (in preparation). Spatio-temporal variability of vertical velocities reconstructed from SWOT Sea Surface Height in the Agulhas region.
23. Damerell, G.M., Bosse, A., Fer, I. (Submitted to Ocean Science January 2025). Merging of a mesoscale eddy into the Lofoten Vortex in the Norwegian Sea captured by an ocean glider and SWOT observations.
24. Hay, A., C. Watson, B. Legresy, B. Zhou, J. Beardsley, and M.King, Bohé, A., In-situ geometric validation of SWOT satellite observations in Bass Strait, In prep for submission to Earth and Space Science. Expected submission date February 2025.
25. Ho, A., J. Wang, B. Haines, A. Wu, S. Stalin. (submitted to ESS (2/20/2025)). In-situ validation of small-scale spatial variability in significant wave height observations from SWOT,
26. Matte, P., Purnell, D., Chartrand, X., Simard, M., Christensen, A., Chavanne, C., Dumont, D., Anctil, F., Innocenti, S., Dabboor, M., Peters, D. (in preparation). Comprehensive in situ dataset of water levels and waves during SWOT fast-sampling and science phases: St. Lawrence Estuary and Saguenay Fjord, Quebec, Canada.
27. Lyard, F.H., Carrere, L., Fouchet, E., Cancet, M., Greenberg, D., Dibarboure, G., Picot, N. “FES2022 a step towards a SWOT-compliant tidal correction” (in preparation)
28. Oms L., Doglioli A.M., Grégori G., Messié M., d’Ovidio F.. Izard L., Rousselet L., Petrenko A., Lévy M., Bellacicco M. (submitted) . “Living on the edge”: Fine-scale observations of frontal phytoplankton communities.
29. Rousselet L., Izard L., Doglioli A.M., d’Ovidio F. (in preparation). Fine-scales in the Mediterranean Sea as revealed by SWOT. GRL, in prep
30. Simard, M., Christensen, A., Matte, P., Purnell, D., Innocenti, S. (in preparation). Evaluation of SWOT performance and accuracy in estuaries.

Early Career hightlights

• Renske Koets
• Elisa Carli
• Luke Kachelein
• Minghai Huang
• Solange Coadou-Chaventon
• Théo Garcia
• Ergane Fouchet
• Julio Leonel Donfack

Monthly meeting (11AM-12:30PM, the third Thursday every month)

December 19, 2024 Recording

• Pujol Marie-isabelle (CLS): Introduction of the Level-3 product.

Janurary 23, 2025 Recording

• Elisabet Verger-Miralles (IMEDEA): SWOT enhances small-scale intrathermocline eddy detection https://essopenarchive.org/doi/full/10.22541/essoar.173315547.75973902
• Allison Ho (JPL): In-situ validation of small-scale spatial variability in significant wave height observations from SWOT

Feburary 20, 2025 Recording

• Andrea Hay (University of Tasmania): geometric validation and noise level (5mm noise level of Karin 2km pixels with the Bass Strait experiment.)
• Solange Coadou (LMD & University of Gothenburg): Resolving Sharper Fronts of the Agulhas Current using SWOT Altimetry. (Cape Basin (Agulhas Current) and the QUICCHE campaign data)

March 20, 2025 Recording

• Luke Kachelein (JPL): Sub-100 km ocean processes revealed by structure functions of SWOT sea surface height and in situ observing network (submitted, link )
• Yann-Treden Tranchant (University of Tasmania): SWOT reveals fine-scale balanced motions and dispersion properties in the Antarctic Circumpolar Current (10.22541/essoar.173655552.25945463/v1)

April 17, 2025 Recording

• Babette Christelle Tchonang (JPL): Velocity validation against in-situ ADCP at the mission calval site in the California Current.
• Laurina Oms (MIO): “Living on the edge”: Fine-scale observations reveal distinct frontal phytoplankton communities” BioSWOT med experiment, submitted in Nature communication

May 15, 2025

• Maristella Berta (ISMAR-CNR): small-scale Lagrangian study in the Med Sea using drifters
• Léna Tolu: SWOT improvements in coastal current detection

June 19, 2025

• Andrew F. Thompson (Caltech): Vertical velocities and deep subduction events from coincident SWOT and glider observations in the Southern Ocean

September 18, 2025 Recording

• Maxime Ballarotta (CLS): Global-Scale Validation of SWOT L3 Velocities Using In-Situ Drifter Data