"Tausende Fässer mit #Atommüll lagern auf dem Meeresgrund des Atlantiks – doch wo genau? Eine internationale Expedition unter der Beteiligunng des Thünen-Instituts für Fischereiökologie geht dieser Frage nach."
#Nodssum
Auf Forschungsfahrt mit der L’Atalante
🧪⚒️ Déchets radioactifs en Atlantique : bilan de la mission #NODSSUM menée par @jescartin.bsky.social www.youtube.com/shorts/zqrT5...
Press release (en français) on the expedition:
www.cnrs.fr/fr/presse/dechets-radioa...
#NODSSUM
French research vessel L'Atalante surveys radioactive waste barrels that were dumped on the seafloor over the course of 40 years (from the 1950s to the 1990s).
#NODSSUM
Opération baptisée #Nodssum
ll est confondant ce génie des hommes à toujours se balancer des brassées de fleurs et se faire valoir quand ils rattrapent à l'aide de machines conçues par eux, les biteries qu'ils se sont acharnés à commettre sans états d'âme. Ils sont gé-niaux. 🥶
⛴A misión francesa #Nodssum pecha a súa primeira expedición oceánica tras cartografar 3.355 barrís con refugallos nucleares a uns 650 quilómetros das costas da Coruña
🔗 praza.gal/acontece/uns...
📸© Flotte Océanographique Française - Campagne NODSSUM
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.
🧪⚒️ #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
Altes Fass auf dem Meeresgrund in türkisem Wasser
☢🛢️ Heute endet die erste Mission der #NODSSUM Kampagne. 3.355 Fässer mit #Atommüll haben die Forschenden kartiert.
Am Thünen-Institut für #Fischereiökologie werden in den kommenden Monaten die gesammelten Meerwasser-, Sediment- und Fischproben auf Rückstände untersucht.
t1p.de/Thuenen_LATALANTE
Hoxe faranse públicos os resultados da expedición #NODSSUM e saberemos un pouquichiño máis dunha das historias máis terríbeis de maltrato dos océanos.
☢ Während der Reise #NODSSUM haben Forschende tausende Fässer mit #Atommüll im #Atlantik entdeckt.
Mit dem Multicorer Sediment Sampler sammeln sie zudem Sedimentproben. Diese werden später u. a. auf #Radioaktivität und am Thünen-Institut auch auf #PFAS untersucht.
t1p.de/Thuenen_LATALANTE
🧪⚒️ #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.
🧪⚒️ #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.
🧪⚒️ #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.
⛴☢️Os case 2.000 bidóns radioactivos xa localizados pola misión francesa #Nodssum na Foxa Atlántica devolven á política galega os históricos vertidos
Map of operations - with the bathymetry (background with coloured relief and isobaths) and location of some of the dives - not up to date)
🧪⚒️ #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
🧪⚒️ #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...
A misión #NODSSUM do @cnrs.fr xa cartografou máis de 1800 bidóns na fosa atlántica, capturou algunhas especies de peixes abisais e recolleu sedimentos. Estará fronte a Galicia até en o 11 de xullo. Unha investigación máis que necesaria. Grazas! Merci!
🧪⚒️ #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).
🚨 La costa atlántica recibió la mitad de todos los desechos radiactivos
- material con radiación beta, gamma, alpha, tritio
- se tiraron hasta containers enteros frente a Galicia
Datos de la @iaeaorg.bsky.social
#nodssum
www.farodevigo.es/galicia/2025...
🧪⚒️ #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…
Identificados ya un millar de barriles con residuos radiactivos (de los en torno a 220k) vertidos frente a la costa gallega, mar adentro, entre los años 40 y 80.
Es una misión de la @CNRS; la Comisión Europea negó que fuese precisa
#nodssum
www.farodevigo.es/galicia/2025...
Identificados los primeros mil barriles con restos radiactivos frente a Galicia
#Nodssum
🧪⚒️ #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.
Multicorer with sediment samples
Rosette for water sampling being checked for radioprotection
AUV Ulyx coming back from a test dive - including sonar
🧪⚒️ #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.
🌊 Découvrez la mission #NODSSUM portée par le
@cnrs.fr et @ifremer.bsky.social dans @liberation.fr
✍️ @margauxgable.bsky.social
🙏cc Autorité de sûreté nucléaire et de radioprotection
@jescartin.bsky.social @cnrs-in2p3.bsky.social
www.liberation.fr/societe/dech...
Le navire scientifique l'Atalante à Brest, juste avant le départ de la mission. Image : Javier Escartín, Flotte Océanographique Française / NODSSUM cruise
🚢 Du 15 juin au 11 juillet, la mission NODSSUM explore les grands fonds de l’Atlantique Nord-Est à bord de l’Atalante pour cartographier d’anciens fûts de déchets radioactifs (entre 3000 et 5000 m).
👉 Suivez l’aventure en direct avec #NODSSUM
👉 En savoir + miti.cnrs.fr/radiocean/
Portrait de Patrick Chardon devant le navire l'Atalante. Image: Crédit : Javier Escartin
#TalentsCNRS | Patrick Chardon, ingénieur en métrologie nucléaire au #LPCA, reçoit la médaille de cristal du @cnrs.fr 👏
« Vu la complexité des enjeux auxquels nous sommes confrontés, aucune science ne sera de trop pour trouver des solutions ! »
🔗 www.in2p3.cnrs.fr/fr...
#Nodssum
🧪⚒️ #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.
Hoy parte del puerto de Brest la misión científica que va a revisar y analizar los residuos radiactivos vertidos mar adentro, frente a la costa gallega, hasta 1982. Hay en torno a 220.000 barriles
Javier Escartín es 1 de los dos líderes del proyecto.
#nodssum
www.farodevigo.es/galicia/2025...
🧪⚒️ #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.