The DUACS system will evolve in e near future to use the new  SWOT (Surface Water Ocean Topography) measurements for génération of the swath Level-3 and  multimission gridded Level-4 sea level products.

In the meanwhile, you can find more information on SWOT on the AVISO or NASA pages.

Some References:

KaRIn L3 sequence:

G.Dibarboure, C. Ubelmann, Y.Faugere, A.Delepoulle, F.Briol, R.Chevrier, C.Busche, A.Treboutte, P.Prandi. SWOT Level-3 Overview
algorithms and examples. SWOT-ST 2023, https://swotst.aviso.altimetry.fr/fileadmin/user_upload/SWOTST2023/20230920_ocean_2_regional_calval/16h30-Dibarboure_level3.pdf

Nadir L3 sequence :

Pujol, M.-I.; Dupuy, S.; Vergara, O.; Sánchez Román, A.; Faugère, Y.; Prandi, P.; Dabat, M.-L.; Dagneaux, Q.; Lievin, M.; Cadier, E.; et al. Refining the Resolution of DUACS Along-Track Level-3 Sea Level Altimetry Products. Remote Sens. 2023, 15, 793. https://doi.org/10.3390/rs15030793

Calibration of KaRIn images:

Dibarboure, G.; Ubelmann, C.; Flamant, B.; Briol, F.; Peral, E.; Bracher, G.; Vergara, O.; Faugère, Y.; Soulat, F.; Picot, N. Data-Driven Calibration Algorithm and Pre-Launch Performance Simulations for the SWOT Mission. Remote Sens. 2022, 14, 6070. https://doi.org/10.3390/rs14236070

Overrall multi-mission strategy:

Faugère, Y., Taburet, G., Ballarotta, M., Pujol, I., Legeais, J. F., Maillard, G., Durand, C., Dagneau, Q., Lievin, M., Sanchez Roman, A., and Dibarboure, G.: DUACS DT2021: 28 years of reprocessed sea level altimetry products, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-7479, https://doi.org/10.5194/egusphere-egu22-7479, 2022.

KaRIn noise mitigation:

Tréboutte, A.; Carli, E.; Ballarotta, M.; Carpentier, B.; Faugère, Y.; Dibarboure, G. KaRIn Noise Reduction Using a Convolutional Neural Network for the SWOT Ocean Products. Remote Sens. 2023, 15, 2183. https://doi.org/10.3390/rs15082183


Jousset S., Mulet S., Wilkin J., Greiner E., Dibarboure G. and Picot N.: “New global Mean Dynamic Topography CNES-CLS-22 combining drifters, hydrological profiles and High Frequency radar data”, OSTST 2022, https://doi.org/10.24400/527896/a03-2022.3292.


Schaeffer, P.; Pujol, M.-I.; Veillard, P.; Faugere, Y.; Dagneaux, Q.; Dibarboure, G.; Picot, N. The CNES CLS 2022 Mean Sea Surface: Short Wavelength Improvements from CryoSat-2 and SARAL/AltiKa High-Sampled Altimeter Data. Remote Sens. 2023, 15, 2910. https://doi.org/10.3390/rs15112910

Ocean tide:
Carrere L. , F. Lyard, M. Cancet, E. Sahuc, D. Allain, Y. Faugère , G. Dibarboure, N. Picot, A new global ocean barotropic tide model: FES2022. OSTST 2022, https://doi.org/10.24400/527896/a03-2022.3287