home.social

#seiche — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #seiche, aggregated by home.social.

  1. Film en français - 52' - dès 6 ans, suggéré 6 ans
    Prix du meilleur film wildlife européen 2026

    Le long des côtes bretonnes, Sepia, une jeune seiche, explore un monde sous-marin à la fois riche et fragile. Dotée de talents étonnants, elle apprend à chasser, à échapper aux marées et à survivre face à la pollution et au changement climatique. Son voyage, jalonné de défis, la mènera vers sa mission ultime : perpétuer son espèce.

    Les projections dans le canton voir en commentaire
    #seiche

  2. Searching for the Seiche

    On 16 September 2023, seismometers around the world began ringing, registering a signal that — for 9 days — wobbled back and forth every 92 seconds. A second, similar signal appeared a month later, lasting about a week. Researchers tracked the signal’s origin to a remote fjord in East Greenland, where it appeared a glacier front had collapsed. The falling rocks and ice triggered a long-lasting wave — a seiche — that rang back and forth through the fjord for days.

    Simulations showed that a seiche was plausible from a rockfall like the two that caused the seismic signal, but, without first-hand observations, no one could be certain. Now a new study has looked at satellite data to confirm the seiche. Researchers found that the then-new Surface Water and Ocean Topography (SWOT) satellite and its high-resolution altimeters had passed over the fjord multiple during the two landslide events. And, sure enough, the satellite captured data showing the water surface in the fjord rising and falling as the seiche ricocheted back and forth.

    It’s a great reminder that having multiple instrument types monitoring the Earth gives us far better data than any singular one. Without both seismometers and the satellite, it’s unlikely that scientists could have truly confirmed a seiche that no one saw firsthand. (Image credit: S. Rysgaard; research credit: T. Monahan et al.; via Eos)

    #fluidDynamics #geophysics #physics #planetaryScience #science #seiche

  3. Searching for the Seiche

    On 16 September 2023, seismometers around the world began ringing, registering a signal that — for 9 days — wobbled back and forth every 92 seconds. A second, similar signal appeared a month later, lasting about a week. Researchers tracked the signal’s origin to a remote fjord in East Greenland, where it appeared a glacier front had collapsed. The falling rocks and ice triggered a long-lasting wave — a seiche — that rang back and forth through the fjord for days.

    Simulations showed that a seiche was plausible from a rockfall like the two that caused the seismic signal, but, without first-hand observations, no one could be certain. Now a new study has looked at satellite data to confirm the seiche. Researchers found that the then-new Surface Water and Ocean Topography (SWOT) satellite and its high-resolution altimeters had passed over the fjord multiple during the two landslide events. And, sure enough, the satellite captured data showing the water surface in the fjord rising and falling as the seiche ricocheted back and forth.

    It’s a great reminder that having multiple instrument types monitoring the Earth gives us far better data than any singular one. Without both seismometers and the satellite, it’s unlikely that scientists could have truly confirmed a seiche that no one saw firsthand. (Image credit: S. Rysgaard; research credit: T. Monahan et al.; via Eos)

    #fluidDynamics #geophysics #physics #planetaryScience #science #seiche

  4. Searching for the Seiche

    On 16 September 2023, seismometers around the world began ringing, registering a signal that — for 9 days — wobbled back and forth every 92 seconds. A second, similar signal appeared a month later, lasting about a week. Researchers tracked the signal’s origin to a remote fjord in East Greenland, where it appeared a glacier front had collapsed. The falling rocks and ice triggered a long-lasting wave — a seiche — that rang back and forth through the fjord for days.

    Simulations showed that a seiche was plausible from a rockfall like the two that caused the seismic signal, but, without first-hand observations, no one could be certain. Now a new study has looked at satellite data to confirm the seiche. Researchers found that the then-new Surface Water and Ocean Topography (SWOT) satellite and its high-resolution altimeters had passed over the fjord multiple during the two landslide events. And, sure enough, the satellite captured data showing the water surface in the fjord rising and falling as the seiche ricocheted back and forth.

    It’s a great reminder that having multiple instrument types monitoring the Earth gives us far better data than any singular one. Without both seismometers and the satellite, it’s unlikely that scientists could have truly confirmed a seiche that no one saw firsthand. (Image credit: S. Rysgaard; research credit: T. Monahan et al.; via Eos)

    #fluidDynamics #geophysics #physics #planetaryScience #science #seiche

  5. Searching for the Seiche

    On 16 September 2023, seismometers around the world began ringing, registering a signal that — for 9 days — wobbled back and forth every 92 seconds. A second, similar signal appeared a month later, lasting about a week. Researchers tracked the signal’s origin to a remote fjord in East Greenland, where it appeared a glacier front had collapsed. The falling rocks and ice triggered a long-lasting wave — a seiche — that rang back and forth through the fjord for days.

    Simulations showed that a seiche was plausible from a rockfall like the two that caused the seismic signal, but, without first-hand observations, no one could be certain. Now a new study has looked at satellite data to confirm the seiche. Researchers found that the then-new Surface Water and Ocean Topography (SWOT) satellite and its high-resolution altimeters had passed over the fjord multiple during the two landslide events. And, sure enough, the satellite captured data showing the water surface in the fjord rising and falling as the seiche ricocheted back and forth.

    It’s a great reminder that having multiple instrument types monitoring the Earth gives us far better data than any singular one. Without both seismometers and the satellite, it’s unlikely that scientists could have truly confirmed a seiche that no one saw firsthand. (Image credit: S. Rysgaard; research credit: T. Monahan et al.; via Eos)

    #fluidDynamics #geophysics #physics #planetaryScience #science #seiche

  6. Searching for the Seiche

    On 16 September 2023, seismometers around the world began ringing, registering a signal that — for 9 days — wobbled back and forth every 92 seconds. A second, similar signal appeared a month later, lasting about a week. Researchers tracked the signal’s origin to a remote fjord in East Greenland, where it appeared a glacier front had collapsed. The falling rocks and ice triggered a long-lasting wave — a seiche — that rang back and forth through the fjord for days.

    Simulations showed that a seiche was plausible from a rockfall like the two that caused the seismic signal, but, without first-hand observations, no one could be certain. Now a new study has looked at satellite data to confirm the seiche. Researchers found that the then-new Surface Water and Ocean Topography (SWOT) satellite and its high-resolution altimeters had passed over the fjord multiple during the two landslide events. And, sure enough, the satellite captured data showing the water surface in the fjord rising and falling as the seiche ricocheted back and forth.

    It’s a great reminder that having multiple instrument types monitoring the Earth gives us far better data than any singular one. Without both seismometers and the satellite, it’s unlikely that scientists could have truly confirmed a seiche that no one saw firsthand. (Image credit: S. Rysgaard; research credit: T. Monahan et al.; via Eos)

    #fluidDynamics #geophysics #physics #planetaryScience #science #seiche

  7. "On September 16th, 2023, an anomalous 10.88 mHz seismic signal was observed globally, persisting for 9 days. One month later an identical signal appeared, lasting for another week. Several studies have theorized that these signals were produced by seiches which formed after two landslide-generated mega-tsunamis in an East Greenland fjord. This theory is supported by seismic inversions, and analytical and numerical modeling, but no direct observations have been made. Here, we present primary observations of this phenomenon using data from the Surface Water Ocean Topography mission. By ruling out other oceanographic processes, we validate the seiche theory of previous authors and independently estimate its initial amplitude at 7.9 m using Bayesian machine learning and seismic data."

    #seiche
    #swot

    nature.com/articles/s41467-025

  8. "On September 16th, 2023, an anomalous 10.88 mHz seismic signal was observed globally, persisting for 9 days. One month later an identical signal appeared, lasting for another week. Several studies have theorized that these signals were produced by seiches which formed after two landslide-generated mega-tsunamis in an East Greenland fjord. This theory is supported by seismic inversions, and analytical and numerical modeling, but no direct observations have been made. Here, we present primary observations of this phenomenon using data from the Surface Water Ocean Topography mission. By ruling out other oceanographic processes, we validate the seiche theory of previous authors and independently estimate its initial amplitude at 7.9 m using Bayesian machine learning and seismic data."

    #seiche
    #swot

    nature.com/articles/s41467-025

  9. "On September 16th, 2023, an anomalous 10.88 mHz seismic signal was observed globally, persisting for 9 days. One month later an identical signal appeared, lasting for another week. Several studies have theorized that these signals were produced by seiches which formed after two landslide-generated mega-tsunamis in an East Greenland fjord. This theory is supported by seismic inversions, and analytical and numerical modeling, but no direct observations have been made. Here, we present primary observations of this phenomenon using data from the Surface Water Ocean Topography mission. By ruling out other oceanographic processes, we validate the seiche theory of previous authors and independently estimate its initial amplitude at 7.9 m using Bayesian machine learning and seismic data."

    #seiche
    #swot

    nature.com/articles/s41467-025

  10. "On September 16th, 2023, an anomalous 10.88 mHz seismic signal was observed globally, persisting for 9 days. One month later an identical signal appeared, lasting for another week. Several studies have theorized that these signals were produced by seiches which formed after two landslide-generated mega-tsunamis in an East Greenland fjord. This theory is supported by seismic inversions, and analytical and numerical modeling, but no direct observations have been made. Here, we present primary observations of this phenomenon using data from the Surface Water Ocean Topography mission. By ruling out other oceanographic processes, we validate the seiche theory of previous authors and independently estimate its initial amplitude at 7.9 m using Bayesian machine learning and seismic data."

    #seiche
    #swot

    nature.com/articles/s41467-025

  11. "On September 16th, 2023, an anomalous 10.88 mHz seismic signal was observed globally, persisting for 9 days. One month later an identical signal appeared, lasting for another week. Several studies have theorized that these signals were produced by seiches which formed after two landslide-generated mega-tsunamis in an East Greenland fjord. This theory is supported by seismic inversions, and analytical and numerical modeling, but no direct observations have been made. Here, we present primary observations of this phenomenon using data from the Surface Water Ocean Topography mission. By ruling out other oceanographic processes, we validate the seiche theory of previous authors and independently estimate its initial amplitude at 7.9 m using Bayesian machine learning and seismic data."

    #seiche
    #swot

    nature.com/articles/s41467-025

  12. #Tsunamis #science #seiche #climatechange

    For 9 days in 2023 scientists picked up a pulse every 90 seconds. This remained a mystery. It happened again just a month later. Using technology and satellites they were able to establish that the pulse came from massive waves created by landslides. The landslides created waves that bounced back and forth causing the pulse every 90 seconds. So they are seiche events rather than Tsunamis and are a result of climate change. discovermagazine.com/planet-ea

  13. For 9 days in 2023 scientists picked up a pulse every 90 seconds. This remained a mystery. It happened again just a month later. Using technology and satellites they were able to establish that the pulse came from massive waves created by landslides. The landslides created waves that bounced back and forth causing the pulse every 90 seconds. So they are seiche events rather than Tsunamis and are a result of climate change. discovermagazine.com/planet-ea

  14. #Tsunamis #science #seiche #climatechange

    For 9 days in 2023 scientists picked up a pulse every 90 seconds. This remained a mystery. It happened again just a month later. Using technology and satellites they were able to establish that the pulse came from massive waves created by landslides. The landslides created waves that bounced back and forth causing the pulse every 90 seconds. So they are seiche events rather than Tsunamis and are a result of climate change. discovermagazine.com/planet-ea

  15. #Tsunamis #science #seiche #climatechange

    For 9 days in 2023 scientists picked up a pulse every 90 seconds. This remained a mystery. It happened again just a month later. Using technology and satellites they were able to establish that the pulse came from massive waves created by landslides. The landslides created waves that bounced back and forth causing the pulse every 90 seconds. So they are seiche events rather than Tsunamis and are a result of climate change. discovermagazine.com/planet-ea

  16. #Tsunamis #science #seiche #climatechange

    For 9 days in 2023 scientists picked up a pulse every 90 seconds. This remained a mystery. It happened again just a month later. Using technology and satellites they were able to establish that the pulse came from massive waves created by landslides. The landslides created waves that bounced back and forth causing the pulse every 90 seconds. So they are seiche events rather than Tsunamis and are a result of climate change. discovermagazine.com/planet-ea

  17. 🔁 Vigicrues (@Vigicrues)

    Maintien en de aval, descente en de médiane, et maintien de moyenne, , , , amont, , aval.
    Restez informé sur vigicrues.gouv.fr et l'appli .

    🐦🔗 twitter.com/Vigicrues/status/1
    🕐 31/01 06:03

  18. 🔁 Vigicrues (@Vigicrues)

    Maintien en #vigilanceRouge de #Vilaine aval, descente en #VigilanceOrange de #Vilaine médiane, et maintien de #Oise moyenne, #Thérain, #Somme, #Epte, #Vilaine amont, #Seiche, #Sarthe aval.
    Restez informé sur vigicrues.gouv.fr et l'appli #Vigicrues.

    🐦🔗 twitter.com/Vigicrues/status/1
    🕐 31/01 06:03

  19. 🔁 Vigicrues (@Vigicrues)

    Maintien #VigilanceRouge #Vilaine médiane (dép 35) et aval (dép. 35, 44, 56) et de la #Seiche (dép 35)
    Passage en #VigilanceOrange #Sarthe aval (dep 72)
    Maintien #VigilanceOrange #Oust, #Vilaine amont, #Oudon, #Orne, #Meu, #Ille-Illet
    infos sur vigicrues.gouv.fr et l'appli

    🐦🔗 twitter.com/Vigicrues/status/1
    🕐 29/01 09:58

  20. 🔁 Vigicrues (@Vigicrues)

    Maintien #VigilanceRouge #Vilaine médiane (dép 35) et aval (dép. 35, 44, 56) et de la #Seiche (dép 35)
    Passage en #VigilanceOrange #Sarthe aval (dep 72)
    Maintien #VigilanceOrange #Oust, #Vilaine amont, #Oudon, #Orne, #Meu, #Ille-Illet
    infos sur vigicrues.gouv.fr et l'appli

    🐦🔗 twitter.com/Vigicrues/status/1
    🕐 29/01 09:58

  21. 🔁 Vigicrues (@Vigicrues)

    Maintien #VigilanceRouge #Vilaine médiane (dép 35) et aval (dép. 35, 44, 56) et de la #Seiche (dép 35)
    Passage en #VigilanceOrange #Sarthe aval (dep 72)
    Maintien #VigilanceOrange #Oust, #Vilaine amont, #Oudon, #Orne, #Meu, #Ille-Illet
    infos sur vigicrues.gouv.fr et l'appli

    🐦🔗 twitter.com/Vigicrues/status/1
    🕐 29/01 09:58

  22. 🔁 Vigicrues (@Vigicrues)

    Maintien médiane (dép 35) et aval (dép. 35, 44, 56) et de la (dép 35)
    Passage en aval (dep 72)
    Maintien , amont, , , , -Illet
    infos sur vigicrues.gouv.fr et l'appli

    🐦🔗 twitter.com/Vigicrues/status/1
    🕐 29/01 09:58

  23. 🔁 Vigicrues (@Vigicrues)

    Maintien en #vigilanceRouge crues de la #Vilaine médiane (dép 35) et aval (dép. 35, 44, 56) et de la #Seiche (dép 35).
    Maintien en #vigilanceOrange crues des cours d'eau : #Oust, #Vilaine amont, #Oudon, #Orne, #Meu.
    Restez informés sur vigicrues.gouv.fr et l'app mobile

    🐦🔗 twitter.com/Vigicrues/status/1
    🕐 28/01 15:57

  24. 🔁 Vigicrues (@Vigicrues)

    Maintien en #vigilanceRouge crues de la #Vilaine médiane (dép 35) et aval (dép. 35, 44, 56) et de la #Seiche (dép 35).
    Maintien en #vigilanceOrange crues des cours d'eau : #Oust, #Vilaine amont, #Oudon, #Orne, #Meu.
    Restez informés sur vigicrues.gouv.fr et l'app mobile

    🐦🔗 twitter.com/Vigicrues/status/1
    🕐 28/01 15:57

  25. 🔁 Vigicrues (@Vigicrues)

    Maintien en #vigilanceRouge crues de la #Vilaine médiane (dép 35) et aval (dép. 35, 44, 56) et de la #Seiche (dép 35).
    Maintien en #vigilanceOrange crues des cours d'eau : #Oust, #Vilaine amont, #Oudon, #Orne, #Meu.
    Restez informés sur vigicrues.gouv.fr et l'app mobile

    🐦🔗 twitter.com/Vigicrues/status/1
    🕐 28/01 15:57

  26. 🔁 Vigicrues (@Vigicrues)

    Maintien en crues de la médiane (dép 35) et aval (dép. 35, 44, 56) et de la (dép 35).
    Maintien en crues des cours d'eau : , amont, , , .
    Restez informés sur vigicrues.gouv.fr et l'app mobile

    🐦🔗 twitter.com/Vigicrues/status/1
    🕐 28/01 15:57

  27. 🔁 Ministère de l'Intérieur - Alerte (@Beauvau_Alerte)

    🔴 La #VigilanceRouge pour #crues qui touche l’’#IlleEtVilaine s’étend à la #LoireAtlantique et au #Morbihan.

    Des crues majeures sont attendues sur les tronçons de #Seiche, #VilaineAval et #VilaineMédiane.

    Soyez très vigilants et tenez-vous informés sur vigilance.meteofrance.fr

    🐦🔗 twitter.com/Beauvau_Alerte/sta
    🕐 28/01 07:23

  28. 🔁 Ministère de l'Intérieur - Alerte (@Beauvau_Alerte)

    🔴 La #VigilanceRouge pour #crues qui touche l’’#IlleEtVilaine s’étend à la #LoireAtlantique et au #Morbihan.

    Des crues majeures sont attendues sur les tronçons de #Seiche, #VilaineAval et #VilaineMédiane.

    Soyez très vigilants et tenez-vous informés sur vigilance.meteofrance.fr

    🐦🔗 twitter.com/Beauvau_Alerte/sta
    🕐 28/01 07:23

  29. 🔁 Ministère de l'Intérieur - Alerte (@Beauvau_Alerte)

    🔴 La #VigilanceRouge pour #crues qui touche l’’#IlleEtVilaine s’étend à la #LoireAtlantique et au #Morbihan.

    Des crues majeures sont attendues sur les tronçons de #Seiche, #VilaineAval et #VilaineMédiane.

    Soyez très vigilants et tenez-vous informés sur vigilance.meteofrance.fr

    🐦🔗 twitter.com/Beauvau_Alerte/sta
    🕐 28/01 07:23

  30. 🔁 Ministère de l'Intérieur - Alerte (@Beauvau_Alerte)

    🔴 La pour qui touche l’’ s’étend à la et au .

    Des crues majeures sont attendues sur les tronçons de , et .

    Soyez très vigilants et tenez-vous informés sur vigilance.meteofrance.fr

    🐦🔗 twitter.com/Beauvau_Alerte/sta
    🕐 28/01 07:23

  31. 🔁 Vigicrues (@Vigicrues)

    Maintien en Vigilance Orange de 5 tronçons #OiseAmont(02) #VilaineMédiane(35),#Seiche(35),#Epte (27,95),#ThouetAval(49). 101 tronçons en #VigilanceJaune dans 55 dépt. Restons vigilants, les crues continuent malgré l'arrêt des pluies!

    🐦🔗 twitter.com/Vigicrues/status/1
    🕐 11/01 06:03

  32. 🔁 Vigicrues (@Vigicrues)

    Maintien en Vigilance Orange de 5 tronçons #OiseAmont(02) #VilaineMédiane(35),#Seiche(35),#Epte (27,95),#ThouetAval(49). 101 tronçons en #VigilanceJaune dans 55 dépt. Restons vigilants, les crues continuent malgré l'arrêt des pluies!

    🐦🔗 twitter.com/Vigicrues/status/1
    🕐 11/01 06:03

  33. 🔁 Vigicrues (@Vigicrues)

    Maintien en Vigilance Orange de 5 tronçons #OiseAmont(02) #VilaineMédiane(35),#Seiche(35),#Epte (27,95),#ThouetAval(49). 101 tronçons en #VigilanceJaune dans 55 dépt. Restons vigilants, les crues continuent malgré l'arrêt des pluies!

    🐦🔗 twitter.com/Vigicrues/status/1
    🕐 11/01 06:03

  34. 🔁 Vigicrues (@Vigicrues)

    Maintien en Vigilance Orange de 5 tronçons #OiseAmont(02) #VilaineMédiane(35),#Seiche(35),#Epte (27,95),#ThouetAval(49). 101 tronçons en #VigilanceJaune dans 55 dépt. Restons vigilants, les crues continuent malgré l'arrêt des pluies!

    🐦🔗 twitter.com/Vigicrues/status/1
    🕐 11/01 06:03

  35. 🔁 Vigicrues (@Vigicrues)

    Maintien en Vigilance Orange de 5 tronçons (02) (35),(35), (27,95),(49). 101 tronçons en dans 55 dépt. Restons vigilants, les crues continuent malgré l'arrêt des pluies!

    🐦🔗 twitter.com/Vigicrues/status/1
    🕐 11/01 06:03

  36. Bizarre, nine-day #seismic signal caused by epic #landslide in #Greenland
    The source of the signal was eventually traced back to a massive landslide in Greenland’s remote #DicksonFjord. A staggering volume of rock and ice, enough to fill 10,000 Olympic-sized swimming pools, plunged into the #fjord, triggering a 200-meter-high mega-tsunami and a phenomenon known as a #seiche: a wave in the icy fjord that continued to slosh back and forth, some 10,000 times over nine days.
    arstechnica.com/science/2024/0

  37. Bizarre, nine-day #seismic signal caused by epic #landslide in #Greenland
    The source of the signal was eventually traced back to a massive landslide in Greenland’s remote #DicksonFjord. A staggering volume of rock and ice, enough to fill 10,000 Olympic-sized swimming pools, plunged into the #fjord, triggering a 200-meter-high mega-tsunami and a phenomenon known as a #seiche: a wave in the icy fjord that continued to slosh back and forth, some 10,000 times over nine days.
    arstechnica.com/science/2024/0

  38. Bizarre, nine-day signal caused by epic in
    The source of the signal was eventually traced back to a massive landslide in Greenland’s remote . A staggering volume of rock and ice, enough to fill 10,000 Olympic-sized swimming pools, plunged into the , triggering a 200-meter-high mega-tsunami and a phenomenon known as a : a wave in the icy fjord that continued to slosh back and forth, some 10,000 times over nine days.
    arstechnica.com/science/2024/0