AVISO: Rss Feeds https://www.aviso.altimetry.fr/ Live from Aviso Website en AVISO: Rss Feeds https://www.aviso.altimetry.fr/fileadmin/templates/avisop/images/rss.png https://www.aviso.altimetry.fr/ 14 14 Live from Aviso Website TYPO3 - get.content.right http://blogs.law.harvard.edu/tech/rss Mon, 04 May 2026 09:52:28 +0000 May 2026: Swot captured the vortex merger chronology in the Lofoten Basin https://www.aviso.altimetry.fr//en/news/idm/2026/may-2026-swot-captured-the-vortex-merger-chronology-in-the-lofoten-basin.html Swot observed an eddy-merging event in the Lofoten Basin. Such phenomena provide insights into... Image of the Month Mon, 04 May 2026 09:52:28 +0000 Swot effectively captures the presence of seiche-like structures in French Polynesia lagoons https://www.aviso.altimetry.fr//en/services/rss-feeds.html?no_cache=1&tx_ttnews%5Btt_news%5D=3197&cHash=54ed1beb4d8ddde2eb1d132e1ced7b4a An article published on the detection by Swot of seiche-like structures in French Polynesia lagoons A study describes the spatial structure of low amplitude oscillations, known as seiches, in the lagoons of several atolls in the French Polynesia this time. This ability to detect seiche-like structures in small bodies of water (less than 80 km in length) opens up new avenues of research into these events and their contribution to erosion and flooding in remote locations.

See a presentation of the results on Swot Adac web site by T. Ballerini.

Reference

Rebouillat, E., Oruba, L., Hopuare, M., Planes, S. and Dormy, E., 2026. SWOT sheds light on seiche oscillations within atoll islands. Geophysical Research Letters, 53(4), p.e2025GL119801. https://doi.org/10.1029/2025GL119801

]]> News of the Swot mission Thu, 23 Apr 2026 11:30:29 +0000 [CFOSAT] Level-2 SWIM Product Evolution: Wave Slope Spectrum Range Extension{} https://www.aviso.altimetry.fr//en/services/rss-feeds.html?no_cache=1&tx_ttnews%5Btt_news%5D=3196&cHash=3ee1d3db41f02081d33d92fe543afce3 Dear user,The CFOSAT Level-2 SWIM product in version 7.1 has been updated with a significant... Dear user,

The CFOSAT Level-2 SWIM product in version 7.1 has been updated with a significant evolution: the extension of the slope spectrum range from 500 meters to 1112 meters. This improvement aims to enhance the product's accuracy and representativeness. For more detailed information, please refer to the Release Note: CFOSAT AWWAIS 7.1 main evolutions.

Key Changes and Improvements:

  • Slope Spectrum Extension: The slope spectrum has been extended from 500 meters to 1112 meters. However, parasitic peaks at wavelengths beyond 800 meters have been identified, impacting the detection performance of partitions.
  • Detection Limit Adjustment: To address this issue, the detection limit for partitions has been set to 800 meters. This adjustment reduces artificial rebounds observed around 400–450 meters, leading to a more accurate distribution.
  • High Correspondence Between Datasets: The matching between the old dataset (22.5–500 meters) and the new dataset (22.5–1112 meters) shows a high correspondence, particularly for partitions 1 and 2, with over 90% matching.
]]> Operational news Wed, 22 Apr 2026 08:00:00 +0000 Swot reveals swells that connect ocean storms and mysterious seismic activity https://www.aviso.altimetry.fr//en/missions/current-missions/swot/portfolio-of-swot-first-results/swot-reveals-swells-that-connect-ocean-storms-and-mysterious-seismic-activity.html A study published in the journal Nature Communications identifies a causal relationship between the... News of the Swot mission Mon, 20 Apr 2026 09:19:48 +0000 Scheduled maintenance – April 17 at 10:00 (CEST) https://www.aviso.altimetry.fr//en/services/rss-feeds.html?no_cache=1&tx_ttnews%5Btt_news%5D=3194&cHash=51c8cd2feb14786c9621b0e289e4064f [16-04-2026] A short service interruption may occur tomorrow morning due to a system update.During... [16-04-2026] A short service interruption may occur tomorrow morning due to a system update.
During this time, some services (FTP, THREDDS Data Server) and the website may be briefly unavailable (up to 15 minutes).

]]> Operational news Thu, 16 Apr 2026 05:00:00 +0000 New: High Resolution Coastal Sargassum Floating Algae Detection https://www.aviso.altimetry.fr//en/data/products/value-added-products/sargassum/hr-coastal-sargassum-floating-algae-detection-with-venus.html The product "High Resolution Coastal Sargassum Floating Algae Detection with VENUS mission in... Website updates Mon, 13 Apr 2026 09:10:13 +0000 Interaction of internal solitary waves and eddies observed for the first time with Swot https://www.aviso.altimetry.fr//en/services/rss-feeds.html?no_cache=1&tx_ttnews%5Btt_news%5D=3191&cHash=264f5f00a4243f27afac8552ab7e2f34 For the first time, Swot enabled to observe Internal solitary waves signature in sea surface... Internal solitary waves impact physical and biological processes in the upper ocean, as well as human activities with potential impacts on navigation and coastal infrastructures. A study using both L4 data including Swot measurements, to detect the eddies and to remove the "known" part of the measurements, and Swot L3 2-km data, to observe the higher-resolution signals of the internal waves has been published. 

See the full story on Swot ADaC web site: Publication: Nonlinear responses from the interaction of internal solitary waves and eddies observed for the first time with SWOT satellite
Reference

Goret, C., Koch-Larrouy, A., Kouogang, F., de Macedo, C.R., M’Hamdi, A., Magalhães, J.M., da Silva, J.C.B., Tchilibou, M., Artana, C., Dadou, I. and Delepoulle, A., 2026. Internal solitary waves refraction and diffraction from interaction with eddies off the Amazon Shelf from SWOT. Ocean Science, 22(1), pp.679-698. https://doi.org/10.5194/os-22-679-2026 


 

 

]]> News of the Swot mission Wed, 08 Apr 2026 08:47:41 +0000 April 2026: Sediment moves in the Ganges-Brahmaputra delta, measured by Swot https://www.aviso.altimetry.fr//en/news/idm/2026/apr-2026-sediment-moves-in-the-ganges-brahmaputra-delta-measured-by-swot.html Swot enables the measurement of changes in both the height and surface area of sediments in... Image of the Month Wed, 01 Apr 2026 07:59:18 +0000 Release of Native Grid FES 2022 tide model https://www.aviso.altimetry.fr//en/data/products/auxiliary-products/global-tide-fes.html This new product contains the FES2022b ocean tide elevation atlas on the Native Finite-Element grid... Website updates Mon, 30 Mar 2026 14:04:37 +0000 New v3.0 of Experimental Multimission Gridded Sea Level Heights and Velocities with SWOT using MIOST https://www.aviso.altimetry.fr//en/services/rss-feeds.html?no_cache=1&tx_ttnews%5Btt_news%5D=3185&cHash=8802adcebbb4818644016290c5e6f60a A new version 3.0 of the Experimental Multimission Gridded Level 4 Sea Level Heights and Velocities... This updated release include input data from L3_LR_SSH in v3.0 and extends the temporal coverage to December 31 2025.

The Level 4 gridded product is constrained by Level 3 input data from the following sources:

  • CMEMS Global Ocean Along-Track L3 Sea Surface Heights Reprocessed (1993–ongoing, tailored for data assimilation) – DOI: 10.48670/moi-00146, Product ID: SEALEVEL_GLO_PHY_L3_MY_008_062 (for the period 2023-03-28 to 2025-07-06),
  • CMEMS Global Ocean Along-Track L3 Sea Surface Heights Near Real-Time – DOI: 10.48670/moi-00147, Product ID: SEALEVEL_GLO_PHY_L3_NRT_008_044 (for the period 2025-07-07 to 2025-12-31),
  • SWOT L3_LR_SSH Product (v3.0) – [DOI: 10.24400/527896/A01-2023.018]. (for the period 2023-03-28 to 2025-12-31).

The information is available on the product page here and in the handbook

Data access:

CNES AVISO FTP/SFTP access (with AVISO+ credentials): 

  • FTP: ftp://ftp-access.aviso.altimetry.fr:21
  • SFTP: ftp://ftp-access.aviso.altimetry.fr:2122
    • Path: /duacs-experimental/dt-phy-grids/l4_karin_nadir/v3_0

CNES AVISO THREDDS Data Server access:

]]> News of the Swot mission Wed, 25 Mar 2026 11:44:00 +0000 Winds, waves and rain off the western European coasts seen by Swot and nadir altimeters https://www.aviso.altimetry.fr//en/applications/atmosphere-wind-and-waves/wind-and-waves/winds-waves-and-rain-off-the-western-european-coasts-seen-by-swot-and-nadir-altimeters.html Two storms, Nils and Pedro, crossed South-west of France mid-February, coming from the Atlantic... Ocean and climate news Thu, 12 Mar 2026 10:41:13 +0000 Mar. 2026: Microplastics distribution in the ocean influenced by eddies https://www.aviso.altimetry.fr//en/news/idm/2026/mar-2026-microplastics-distribution-in-the-ocean-influenced-by-eddies.html Mesoscale eddies seem to act as dynamic reservoirs and transporters of microplastics in the ocean Image of the Month Mon, 02 Mar 2026 10:56:51 +0000 Explore the New AVISO CalVal Visualization Portal https://www.aviso.altimetry.fr//en/services/rss-feeds.html?no_cache=1&tx_ttnews%5Btt_news%5D=3178&cHash=0450d6b9987742af78eefb2ce215cab9 Powered by OceanDataLab, AVISO introduces a new visualizer for exploring some of its key products. We are pleased to announce the launch of the new AVISO CalVal Visualization Portal. This platform provides access to a selection of key products from the Aviso+ catalog through an enhanced data‑exploration interface. We invite you to visit the portal to learn more about its features and capabilities.

]]> Website updates Wed, 04 Feb 2026 15:45:19 +0000 AVISO+ Newsletter #24 https://www.aviso.altimetry.fr//en/services/rss-feeds.html?no_cache=1&tx_ttnews%5Btt_news%5D=3176&cHash=80ca781e939d84848a2b226dfe49c11d Release of the 24th Aviso+ Users Newsletter: recent updates and insights to help you stay connected... We are pleased to announce you the publication of the Aviso+ Users Newsletter #24
Summary

  • Project news from the Missions Project Team at CNES
  • Presentation of several tools & products available through Aviso
  • An analysis of users’ feedbacks
  • Events and publications around Swot
  • And a summary of three years of Swot


Hope you will enjoy this new issue!
 

Find all the past newsletters

]]> Website updates Wed, 04 Feb 2026 15:45:19 +0000 New versions for Barystatic and Manometric sea level changes from satellite geodesy https://www.aviso.altimetry.fr//en/data/products/ocean-indicators-products/barystatic-and-manometric-sea-level-changes-from-satellite-geodesy.html Version 5.0 for barystatic and manometric sea level changes estimated using satellite gravimetry... Website updates Tue, 03 Feb 2026 10:38:24 +0000 February 2026: Swot helps in assessing the tides in estuaries and rivers https://www.aviso.altimetry.fr//en/news/idm/2026/feb-2026-swot-helps-in-assessing-the-tides-in-estuaries-and-rivers.html Swot enables to link tides from the open ocean into rivers. Image of the Month Mon, 02 Feb 2026 09:20:02 +0000 Version 2.0 of Antarctic Circumpolar Current - fronts product https://www.aviso.altimetry.fr//en/data/products/value-added-products/acc-fronts-product.html Release of version 2.0 of the product Antarctic Circumpolar Current - fronts product with a... Website updates Wed, 28 Jan 2026 08:35:00 +0000 Jason-3, 10 years in orbit! https://www.aviso.altimetry.fr//en/services/rss-feeds.html?no_cache=1&tx_ttnews%5Btt_news%5D=3168&cHash=84ae00090dc36447c768e9b2e4bfa2e5 The Jason-3 satellite was launched 10 years ago, on January 16th, 2016. The Jason-3 satellite was launched 10 years ago from Vandenberg Air Force base, taking over Jason-2, in flight since 2008.

Since then, it has been replaced by Sentinel-6 Michael Freilich, and very recently Sentinel-6B (still in calibration phase), thus continuing the uninterrupted series of measurements which began with Topex/Poseidon.
The satellite is still functioning very well, but since the summer of 2025 it has been in a slightly different orbit (shifted by 2 km), enabling "geodetic" measurements. 

]]> News of the Jason-3 mission Sat, 17 Jan 2026 06:18:00 +0000 January 2026: La Niña comes and goes https://www.aviso.altimetry.fr//en/news/idm/2026/jan-2026.html Altimetry enables large-scale monitoring of the ENSO phenomenon - both El Niño and La Niña phases Image of the Month Thu, 15 Jan 2026 16:37:44 +0000 Applications for 2026 Eumetsat Supporting Marine Applications course are now open! https://www.aviso.altimetry.fr//en/services/rss-feeds.html?no_cache=1&tx_ttnews%5Btt_news%5D=3164&cHash=a0869c6972864d34316663e693bd13f1 Online training course (23 February - 20 March 2026) focusing on focus will be on data streams... Gain hands-on experience accessing and using marine satellite data (23 February and 13 March 2026), and co-develop a mini-project idea with the training team (16-20 March 2026). This year, the course will be delivered in partnership with the Deutsches Geodätisches ForschungsInstitut (DGFI) at the Technical University of Munich, and applications from those who are interested in working with altimetry are particularly welcomed.

For more information (and application): https://trainingevents.eumetsat.int/trui/events/2649

]]> Events Tue, 13 Jan 2026 14:32:48 +0000