15f25d0b-5a41-4335-85f2-874e9b2e5cd0 AVISO aviso@altimetry.fr editor 2026-09-16T15:33:30.68285Z ISO 19115-3:2018 - Remote Sensing ISO 19115-3:2018 - Remote Sensing http://www.opengis.net/def/crs/EPSG/0/4326 Wind & Wave product SWOT Level-3 WindWave - Light Wind & Wave product SWOT Level-3 WindWave - Light Produit vent & vagues SWOT Niveau 3 WindWave - Light 2025-03-15 creation 2026-10-15 lastUpdate A01-2024.016 v3.0 The SWOT KaRIn Level-3 Wind Wave product (L3_LR_WIND_WAVE) is an innovative product derived from the Unsmoothed L3_LR_SSH product (https://doi.org/10.24400/527896/A01-2024.003), which is based on the algorithm presented by Ardhuin et al. (2024; https://doi.org/10.1029/2024GL109658). L3_LR_WIND_WAVE takes advantage of the KaRIn Low Rate (LR) chain's ability to resolve waves with wavelengths greater than 500 meters (approximately 18 seconds) and provides detailed information on the characteristics of these wave regimes. This includes significant wave height (SWH), dominant wavelength, and wave propagation direction. These regimes are associated with long-period swells and extreme events that play a critical role in ocean dynamics, coastal processes, and maritime operations. The SWOT L3_LR_WIND_WAVE product is organized into two subproducts, "Light" and "Extended". The L2_LR_SSH "Light" product is described in this metadata sheet. The "Light" L3_LR_WIND_WAVE (also known as the "lightweight" product) includes the SWOT L3_LR_SSH 250-m SSHA spectrum, corrected for instrumental effects and expressed in both Cartesian and polar coordinates. It also includes the swell partition of the spectrum and the wave parameters integrated over this partition, for both the WW3 model and the KaRIn model (significant wave height, wavelength, and direction). The "Extended" L3_LR_WIND_WAVE includes the aforementioned variables plus the WW3 spectrum in the same frequency grid as the KaRIn spectrum and the KaRIn transfer functions used for correction, as well as some parameters derived from KaRIn observations (e.g., coherence, mean backscatter). The SWOT KaRIn Level-3 Wind Wave product (L3_LR_WIND_WAVE) is an innovative product derived from the Unsmoothed L3_LR_SSH product (https://doi.org/10.24400/527896/A01-2024.003), which is based on the algorithm presented by Ardhuin et al. (2024; https://doi.org/10.1029/2024GL109658). L3_LR_WIND_WAVE takes advantage of the KaRIn Low Rate (LR) chain's ability to resolve waves with wavelengths greater than 500 meters (approximately 18 seconds) and provides detailed information on the characteristics of these wave regimes. This includes significant wave height (SWH), dominant wavelength, and wave propagation direction. These regimes are associated with long-period swells and extreme events that play a critical role in ocean dynamics, coastal processes, and maritime operations. The SWOT L3_LR_WIND_WAVE product is organized into two subproducts, "Light" and "Extended". The L2_LR_SSH "Light" product is described in this metadata sheet. The "Light" L3_LR_WIND_WAVE (also known as the "lightweight" product) includes the SWOT L3_LR_SSH 250-m SSHA spectrum, corrected for instrumental effects and expressed in both Cartesian and polar coordinates. It also includes the swell partition of the spectrum and the wave parameters integrated over this partition, for both the WW3 model and the KaRIn model (significant wave height, wavelength, and direction). The "Extended" L3_LR_WIND_WAVE includes the aforementioned variables plus the WW3 spectrum in the same frequency grid as the KaRIn spectrum and the KaRIn transfer functions used for correction, as well as some parameters derived from KaRIn observations (e.g., coherence, mean backscatter). CDS-AVISO CDS-AVISO CDS-AVISO completed Helpdesk AVISO-SWOT aviso-swot@altimetry.fr pointOfContact CDS-AVISO distributor CLS/CNES originator LOPS originator CNES funder https://sextant.ifremer.fr/geonetwork/srv/api/records/15f25d0b-5a41-4335-85f2-874e9b2e5cd0/attachments/SWOT_l3_lr_wind_wave.png Oceanographic geographical features Oceanographic geographical features Caractéristiques géographiques océanographiques GEMET - INSPIRE themes, version 1.0 GEMET - INSPIRE themes, version 1.0 2018-07-27T14:39:48 publication 2018-07-27 publication geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme Sea Surface Topography Sea Surface Topography Topographie de la surface de la mer Cersat - Parameter Cersat - Parameter 2025-12-09 publication geonetwork.thesaurus.local.theme.cersat_parameter Cersat - Project Cersat - Project 2025-12-09 publication geonetwork.thesaurus.local.theme.cersat_project Cersat - Latency Cersat - Latency 2025-12-09 publication geonetwork.thesaurus.local.theme.cersat_latency /Ocean Winds/Surface Winds /Ocean Winds/Surface Winds /Ocean Waves/Wind Waves /Ocean Waves/Wind Waves Cersat - GCMD parameter Cersat - GCMD parameter 2024-01-04 publication geonetwork.thesaurus.external.theme.GCMDparameter CDS-AVISO CDS-AVISO CDS-AVISO Centre de données ODATIS Centre de données ODATIS 2026-01-19 publication geonetwork.thesaurus.local.theme.odatis_centre_donnees /Observational data/satellite /Observational data/satellite /Données d'observation/satellite Type de jeux de donnée ODATIS Type de jeux de donnée ODATIS 2025-12-09 publication geonetwork.thesaurus.local.theme.type_jeux_donnee Wind Wind Vent Waves Waves Vagues ODATIS aggregation parameters and Essential Variable names ODATIS aggregation parameters and Essential Variable names 2025-07-29 publication geonetwork.thesaurus.external.theme.NVS.OD1 L3 L3 L3 Cersat - Processing level Cersat - Processing level 2025-12-09 publication geonetwork.thesaurus.local.theme.cersat_processing_level Update Update None None Open Licence Open Licence Licence Ouverte "The SWOT L3_LR_WIND_WAVE Light data product, derived from the SWOT L3_LR_SSH Unsmoothed, is produced by DUACS and LOPS teams as part of the DESMOS and VAGUES SWOT Science Team projects and made freely available by AVISO". CLS, & CNES. (2025). SWOT Level-3 KaRIn Wind Wave Light (v3.0) [Dataset]. CNES. https://doi.org/10.24400/527896/A01-2024.016. "The SWOT L3_LR_WIND_WAVE Light data product, derived from the SWOT L3_LR_SSH Unsmoothed, is produced by DUACS and LOPS teams as part of the DESMOS and VAGUES SWOT Science Team projects and made freely available by AVISO". CLS, & CNES. (2025). SWOT Level-3 KaRIn Wind Wave Light (v3.0) [Dataset]. CNES. https://doi.org/10.24400/527896/A01-2024.016. 8c961685-cecb-41d9-b2d9-2a22cdd3d0c2 de48c5b5-18f7-4829-ba0e-78f3dff047ac d1f06620-d11c-4945-b53d-6769e909be01 grid 250 oceans -180.00 180.00 -80.00 80.00 Global 2023-08-11 2024-06-17 pass L3 NetCDF NetCDF 4 https://tds-odatis.aviso.altimetry.fr/thredds/catalog/L3/SWOT_KARIN-L3_LR_WIND_WAVE.html https://tds-odatis.aviso.altimetry.fr/thredds/catalog/L3/SWOT_KARIN-L3_LR_WIND_WAVE.html WWW:LINK SWOT L3_LR_WIND_WAVE Light SWOT L3_LR_WIND_WAVE Light THREDDS THREDDS THREDDS https://swot-community.github.io/SWOT-galleries/cnes.html https://swot-community.github.io/SWOT-galleries/cnes.html WWW:LINK Software Software SWOT Ocean data tutorials SWOT Ocean data tutorials https://www.aviso.altimetry.fr/en/missions/current-missions/swot/orbit.html https://www.aviso.altimetry.fr/en/missions/current-missions/swot/orbit.html WWW:LINK Other document Other document AVISO SWOT Orbit files (kml and shapefile) for the 1-day and 21-day orbits AVISO SWOT Orbit files (kml and shapefile) for the 1-day and 21-day orbits https://www.aviso.altimetry.fr/fileadmin/documents/data/tools/hdbk_SWOT_L3_LR_WIND_WAVE.pdf https://www.aviso.altimetry.fr/fileadmin/documents/data/tools/hdbk_SWOT_L3_LR_WIND_WAVE.pdf WWW:LINK User guide User guide Product User Manual (handbook) Product User Manual (handbook) Guide utilisateur (handbook) https://doi.org/10.1029/2024GL109658 https://doi.org/10.1029/2024GL109658 WWW:LINK Web link (URL) Web link (URL) 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. https://doi.org/10.1029/2024GL109658. 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. https://doi.org/10.1029/2024GL109658. 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. https://doi.org/10.1029/2024GL109658. https://github.com/ardhuin/swellSWOT https://github.com/ardhuin/swellSWOT WWW:LINK Software Software SWOT Swell analysis tools SWOT Swell analysis tools SWOT Swell analysis tools https://doi.org/10.24400/527896/A01-2024.016 https://doi.org/10.24400/527896/A01-2024.016 https://doi.org/10.24400/527896/A01-2024.016 DOI Digital Object Identifier (DOI) Digital Object Identifier (DOI) Production and distribution of the SWOT L3_LR_WIND_WAVE Light version 2.0 data product for the Science phase (cycle 2 - cycle 16). Production and distribution of the SWOT L3_LR_WIND_WAVE Light version 2.0 data product for the Science phase (cycle 2 - cycle 16). v2.0 2025-03-15