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11.08.2025 A third tsunami observed by Swot, due to Kamchatka earthquake

Map of simulation of Tsunami 1 h 10 min after earthquake, with Swot swath (left), model, Swot KaRIn and Swot nadir data over the satellite ground track (right). (Credits: A. Deniau & F. Nencioli for the Swot data processing & the plot, A. Ruiz-Angulo & C. de Marez for the wave propagation model)

Just over an 1 hour after the recent Kamchatka earthquake and subsequent tsunami, the Swot satellite overflew the area, measuring the tsunami wave front, an important addition to tsunami propagation models.

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06.08.2025 New Slope correction for Sentinel-6A SAR altimetry

This product provides slope correction maps for Sentinel-6A SAR mode. These maps are derived from the approach originally developed for LRM mode by Sandwell and Smith (2014), adapted to reflect the geometry and orientation of SAR...

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05.08.2025 August 2025: Filaments help in understanding a harmful algal bloom

Finite-size Lyapunov exponents (FSLEs) and Lagrangian advection of virtual particles from altimetry data, can be used to understand the physical mechanisms of the toxic algae concentration.

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