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Pierre-Yves Raumer

@pyraumer.bsky.social
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Reposted by Pierre-Yves Raumer
The OHA-GEODAMS Seafloor Observatory @geodams.bsky.social · 08/07/2026
The news is out today in @nature.com ! The OHA-GEODAMS observatory had the incredible luck to capture a major seafloor spreading event back in 2024, just 2 months after its deployment. You can read all about it at: www.nature.com/articles/s41... Here’s how it unfolded 👇
nature.com
Anatomy of a seafloor spreading event captured by in situ seismogeodesy - Nature
By combining hydroacoustic, direct-path ranging and bottom-pressure measurements, in situ observations of a rifting event at a segment of the Southeast Indian Ridge are reported, providing insight int...
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Reposted by Pierre-Yves Raumer
The OHA-GEODAMS Seafloor Observatory @geodams.bsky.social · 24/01/2026
The 2026 GEODAMS team safely arrived close to Possession Island in the Crozet archipelago a few days ago. A penguin crowd welcomed us under a very bright sky and with the traditional croziflette that follows... 🐧 🍽️ We’ve had our fill, both for the eyes and the stomach.
group photo in front of CrozetPenguin crowd at la Manchotière from Possession IslandA standard croziflette
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Reposted by Pierre-Yves Raumer
The OHA-GEODAMS Seafloor Observatory @geodams.bsky.social · 30/01/2025
We deployed 7 Ocean Bottom Seismometers (OBSs) to record earthquakes and other signals emitted by the Southeast Indian Ridge and the Amsterdam transform fault.
water color by D. Pacaud illustrating the deployment of an ocean bottom seismometer from the Marion Dufresne
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Reposted by Pierre-Yves Raumer
The OHA-GEODAMS Seafloor Observatory @geodams.bsky.social · 30/01/2025
We start by deploying the float containing the hydrophone from the back deck, then unroll the ~2 km long mooring...
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