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28.07.2025 Sentinel-6B traveling from Europe to its launch base in California

The next reference altimetry satellite, Copernicus Sentinel-6B, has begun its journey to the Vandenberg Space Force Base in California (USA), where it is scheduled to launch on November 17th. [more]

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28.07.2025 Swot observes interactions between waves, winds, and currents

Wind, currents, and wave conditions in the Gulf Stream region during SWOT pass on 2023-09-02 at 04:13 UTC. (a) wind speed and direction from the ERA-5 reanalysis, with wind speed from SWOT overlayed. (b) current speed and direction (only for current faster than 0.7 ms−1) from the HYCOM model. Geostrophic currents computed from SWOT's SSH observations overlayed. (c & d) WW3 significant wave height snapshots from simulations performed (c) without (CTRL) and (d) with (CURR) current forcing. Significant wave height from SWOT is overlayed on both (c) and (d). CFOSAT observations of significant wave height (thin line) and directional wave spectrum (inset) are shown on (d). (credit Colorado School of Mines)

With Swot, we can now observe significant wave heightin two dimensions at kilometer-scale resolution. This new capability provides an unprecedented view of how surface waves interact with winds and currents, and vice versa.

[more]

22.07.2025 New Dynamic Atmospheric Correction using ERA5

The new DAC-ERA5 reprocessing is available on the period 01/02/1992 – 31/12/2022. It benefits from several improvements including a new bathymetry, a new model version (TUGO instead of MOG2D) and a new atmospheric forcing (ERA5...

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15.07.2025 New version 2.0 of Tide Gauges products

Two Corsica sites of Senetosa and Macinaggio tide gauges data have been fully reprocessed on March 2025.

[more]

04.07.2025 July 2025: Altimetry measures close to the coasts of La Rochelle

Coastal altimetry is a complex topic a new dataset AltiCap provides Sea Level Anomalies "close" to the coasts. A study looks at La Rochelle neighborhood

[more]

03.07.2025 Swot tracks significant inflow of oxygen-rich waters to the Baltic Sea

For the first time, the Swot satellite captured a major inflow of oxygen-rich waters in the Baltic Sea across Denmark Straitwith unprecedented spatial resolution.

[more]

20.06.2025 Tsunami waves observed by Swot for the second time

Figure 1 Simulation of the Drake Passage Tsunami at 17:51:29 UTC with Swot swath depicted with dashed dotted lines Credits: M. Fuentes & A. Delepoulle. Full simulation movie https://prs.uchile.cl/simulacion-tsunami-de-magallanes-3-de-mayo-de-2025/

Two years after the first 2D picture of a tsunami in the Southwest Pacific Ocean new tsunami wave features were caught in the South Atlantic Ocean on May 2, 2025

[more]

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