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Reposted by Javier Escartín

Meertext @meertext.bsky.social · Aug 27

#DeepSeaMining would cause severe impacts in all levels of large marine ecosystems - it`s devastating

Bigelow Laboratory for Ocean Sciences @bigelowlab.bsky.social · Aug 26

Deep Sea Dialogue: Last month, diplomats, advocates, lawyers, and ambassadors from the @deepstewardship.bsky.social gathered in Kingston, Jamaica for the second part of the 30th session of the International Seabed Authority. Read more: www.bigelow.org/news/article... #bigelowlab #ocean #science

Scientists Continue to Advise Deep-Sea Mining Discussions - Bigelow Laboratory for Ocean Sciences

www.bigelow.org

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Javier Escartín @jescartin.bsky.social · Jul 11

4) Sonar coverage during a dive of AUV Ulyx (gray background) covering a zone of approximately 6x3 km, with sonar swaths of about 400 m (horizontal stripes). The identified barrels shown as black dots line up along tracks followed by ships during barge dumping.

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Javier Escartín @jescartin.bsky.social · Jul 11

Copyright for all images: Flotte Océanographique Française - Campagne NODSSUM.

2) Barrel dumped at the seafloor at about 4700 m water depth and 3) a probable leak of unknown material - probably tar used to embed the waste in the barrels.

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Javier Escartín @jescartin.bsky.social · Jul 11

Copyright for all images: Flotte Océanographique Française - Campagne NODSSUM.

1) Swath of Ulyx sonar data (left) and close-up of the barrels at the seafloor, showing as bright spots (from box on the left), with the bright illuminated side by the sonar and the shadow away from the AUV.

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Javier Escartín @jescartin.bsky.social · Jul 11

🧪⚒️ #NODSSUM cruise - On land, material & samples make their way back to home labs. And this morning we showed sonar images of barrels & photos taken by Ulyx flying at ~10 m above seafloor. Lots to do back in labs & offices. It was intense - good intense. Images: see copyright etc in thread

Copyright Flotte Oceanographique Française - Nodssum cruise. Swath of Ulyx sonar data (left) and close-up of the barrels at the seafloor, showing as bright spots (from box on the left)

Copyright: Flotte Océanographique Française - Campagne NODSSUM. Barrel dumped at the seafloor at about 4700 m water depth

Copyright: Flotte Océanographique Française - Campagne NODSSUM. Barrel at the seafloor showing a probable leak of unknown material - probably tar used to embed the waste in the barrels.

Copyright: Flotte Océanographique Française - Campagne Nodssum. Sonar coverage during a dive of AUV Ulyx (gray background) covering a zone of approximately 6x3 km, with sonar swaths of about 400 m (horizontal stripes). The identified barrels shown as black dots line up along tracks followed by ships during barge dumping.

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Javier Escartín @jescartin.bsky.social · Jul 6

🧪⚒️ #NODSSUM cruise - Operational update - North East Atlantic zones NEA#3 of radioactive waste dump. UlyX mapped w/sonar 140 km2 (15 dives ), detecting more than 3000 barrels - 26 sites cored for sediment, 19 rosettes for water samples, 8 fishtraps (1 @ bottom, 9 rattails), 1 current meter.

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Javier Escartín @jescartin.bsky.social · Jul 6

🧪⚒️ #NODSSUM cruise - Sunday w/ pains au chocolat - & 48 h till we leave the work site. Last night no UlyX dive due to weather & coring. The 12-tube Oktopus corer preserves the water - sediment interface, and a critical part to look for radionuclides from barrels or surface fall-out.

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Javier Escartín @jescartin.bsky.social · Jul 4

🧪⚒️ #NODSSUM cruise - we are into the last week of the cruise. Up to now we have been spared of bad weather. We are now sandwiched in a narrow high pressure corridor w/ calm seas… ans spectacular sunsets & sunrises & moon rivers - but some rocking in the horizon this weekend.

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Javier Escartín @jescartin.bsky.social · Jun 30

Eric can U send an email to me and patrick? To go over this? Cheers
[email protected]

[email protected]

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Javier Escartín @jescartin.bsky.social · Jun 30

And a current meter that will stay for a year or more...

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Javier Escartín @jescartin.bsky.social · Jun 30

🧪⚒️ #NODSSUM cruise - Operational update - North East Atlantic zones NEA#3 and NEA#4 of radioactive dump. UlyX mapped w/sonar 110 km2 in 7 dives (1 to process ), detecting more than 1900 barrels, 9 sites cored 1 going (sediment), more than 10 rosettes (water samples), & 9 rattails w/fish traps

Map of operations - with the bathymetry (background with coloured relief and isobaths) and location of some of the dives - not up to date)

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Javier Escartín @jescartin.bsky.social · Jun 30

🧪⚒️ #NODSSUM cruise - on board now the teams are well seasoned and coordinated - operations run smoothly and efficiently all along- with sunshine and calm seas - finally - for the next few days…

Update of cruise results/dives/samples to come shortly

www.linkedin.com/posts/caroli...

The #NODSSUM expedition is going well! | Caroline Gini

The #NODSSUM expedition is going well! ⛴️ Operations at sea are a complex ballet to ensure no time is wasted and all the scientific objectives are met by the end of the expedition 🔬📚⚒️ - First, ship...

www.linkedin.com

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Javier Escartín @jescartin.bsky.social · Jun 28

🧪⚒️ #NODSSUM cruise - WOW behind and WOW! Science day: Ulyx came back from a sonar survey at a site visited by AUV Epaulard in 1983 - >600 barrels more (>1800 to date) + a CTD/rosette during the dive, succesful sediment coring, and two fish traps recovered w/ 5 rattails (grenadiers).

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Javier Escartín @jescartin.bsky.social · Jun 27

🧪⚒️ #NODSSUM cruise - WOW - Wainting on Weather with a multibeam survey and no Ulyx dive yesterday- after 5 days of work at the radioactive waste dump site. After 5 Ulyx dives we now located >1200 barrels in sonar maps, and sediment/water/fish sampling is well on the way… more details later…

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Javier Escartín @jescartin.bsky.social · Jun 22

🧪⚒️ #NODSSUM cruise - we arrived to the radioactive waste dump site 2 days ago & AUV UlyX is brings up sonar data that will guide our sampling strategy. After checks for radioprotection, sonar data (500 Gb) transfer via the sturdiest hard drive ever - rated 6000m depth in a tinanium bottle.

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Javier Escartín @jescartin.bsky.social · Jun 17

🧪⚒️ #NODSSUM cruise - the first operations to test sampling of water and sediment, radioprotection protocoles, and the AUV w/ its new sonar are done. Soon off to a reference site w/ depths of more than 4800 m, before the work at the radioactive dump site.

Rosette for water sampling being checked for radioprotection

AUV Ulyx coming back from a test dive - including sonar

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Javier Escartín @jescartin.bsky.social · Jun 16

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Javier Escartín @jescartin.bsky.social · Jun 16

🧪⚒️ #NODSSUM cruise - L’Atalante is now on the way after leaving Brest. First AUV UlyX dive tuesday morning to test all the instruments - and water and sediment sampling to set in place procedures and train the teams.

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Javier Escartín @jescartin.bsky.social · Jun 14

🧪⚒️ #NODSSUM cruise - the yellow UlyX - the autonomous underwater vehicle or AUV - is onboard this sunny Saturday morning - ready for deep diving & mapping the abyssal plains of the Atlantic. Back deck of l’Atalante now fully occupied also with moorings, corers, rosettes, etc. Almost ready to go.

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Javier Escartín @jescartin.bsky.social · Jun 13

🧪⚒️ #NODSSUM cruise - L’Atalante @ Brest harbor @ our arrival &some night pics. Empty but loading has begun & will be filled today w/ containers, instruments, the Ulyx autonomous robot, computers… Boarding Sun to set up labs & work spaces. Thanks to all making this possible #DT_INSU #FOF #GENAVIR

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Javier Escartín @jescartin.bsky.social · Jun 10

🧪⚒️ #NODSSUM cruise - We bring along Marina Zindy’s art works, to be placed on ballast for moorings to be deployed in coming weeks. Permanently installed at the seafloor, we may visit them in a year or two during a follow up cruise. Read about Marina's project here:

www.linkedin.com/posts/marina...

#unoc3 #nodssum #unoc3 #nodssum | Marina Zindy

🚨 This week, the third United Nations Ocean Conference #UNOC3 is taking place in Nice. 🌊 To mark the occasion, I'd like to share with you my deep-sea project carried out with ENS Paris ! Here'...

www.linkedin.com

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Javier Escartín @jescartin.bsky.social · Jun 9

It is a vessel from the French Oceanographic Fleet - a national research infrastructure for CNRS, IRD, Universities, and IFREMER - IFREMER operates it but is not its ship.

Javier Escartín @jescartin.bsky.social · Jun 7

🧪⚒️ #NODSSUM cruise - Wind and waves are limiting factors for operations at sea - & thus to gather samples and data. While far ahead, but we begin to keep track of predictions in our working area (~46N 17W 😬) - working from the 20th of June, for about 20 days (check wave height at the flagpole).

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Javier Escartín @jescartin.bsky.social · Jun 4

🧪⚒️ #NODSSUM cruise - J-10 and cruise preparations move along. Quizz - what is this shipment just received at Clermont Ferrand? Some clues: Not depth-rated 6000 m, ~5.5 kg in air and <0.5 kg in water. Not critical for any specific scientific operation.

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Javier Escartín @jescartin.bsky.social · May 28

🧪⚒️ - PhD position APPLICATIONS OPEN TILL JULY 15th 2025 - based @ U. Lyon (M. Andreani) w/ the participation of ENS Paris - on fluid-rock interactions at ridges. This is part of the FLUXBEATS ITN project (www.fluxbeats.eu) involving 10 PhD programs.

observatoire.univ-lyon1.fr/actualites/j...

www.fluxbeats.euinvolving

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