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#eddies — Public Fediverse posts

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

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  1. Brushstrokes in Blue

    In early February 2026, cold weather swept into southern Florida. The cold fronts churned up sediment and cooled shallow waters, making them denser than the warmer waters of the open ocean. That caused the cooled water to sink off the continental shelf, carrying bright sediment with it. The satellite images of swirling sediment remind me of Impressionist paintings. (Image credit: M. Garrison; via NASA Earth Observatory)

    #eddies #fluidDynamics #physics #satelliteImage #science #sedimentation
  2. Brushstrokes in Blue

    In early February 2026, cold weather swept into southern Florida. The cold fronts churned up sediment and cooled shallow waters, making them denser than the warmer waters of the open ocean. That caused the cooled water to sink off the continental shelf, carrying bright sediment with it. The satellite images of swirling sediment remind me of Impressionist paintings. (Image credit: M. Garrison; via NASA Earth Observatory)

    #eddies #fluidDynamics #physics #satelliteImage #science #sedimentation
  3. How do mesoscale #eddies shape the Southern Ocean #CarbonBudget? 🌊🌀

    The Southern Ocean takes up about a quarter of anthropogenic CO₂. A 27-yr eddy resolving simulation conducted by Salinas-Matus et al. shows anticyclonic eddies to be most efficient at absorbing atmospheric CO₂, while cyclones & peripheries are weaker. These eddies cause daily & seasonal variability and act as overall carbon sinks, contributing ~10 % of total uptake & ~1 % of anomalous uptake.🔍

    🔗: doi.org/10.5194/bg-22-7519-2025

  4. How do mesoscale #eddies shape the Southern Ocean #CarbonBudget? 🌊🌀

    The Southern Ocean takes up about a quarter of anthropogenic CO₂. A 27-yr eddy resolving simulation conducted by Salinas-Matus et al. shows anticyclonic eddies to be most efficient at absorbing atmospheric CO₂, while cyclones & peripheries are weaker. These eddies cause daily & seasonal variability and act as overall carbon sinks, contributing ~10 % of total uptake & ~1 % of anomalous uptake.🔍

    🔗: doi.org/10.5194/bg-22-7519-2025

  5. Chlorophyll Eddies

    Instruments aboard NASA’s PACE mission are able to distinguish far more about phytoplankton blooms than previous satellites. This image shows chlorophyll concentrations in the Norwegian Sea in July 2025. Chlorophyll acts as a proxy for phytoplankton, which produce the chemical as they process sunlight into food and oxygen.

    Despite their microscopic size, phytoplankton have enormous collective effects. Scientists estimate that phytoplankton produce as much as half of the Earth’s oxygen in addition to helping transport carbon dioxide from the atmosphere into the deep ocean. They are also the foundation of the marine food web, feeding nearly all life in the ocean. (Image credit: W. Liang; via NASA Earth Observatory)

    #eddies #flowVisualization #fluidDynamics #physics #phytoplankton #satelliteImage #science

  6. Chlorophyll Eddies

    Instruments aboard NASA’s PACE mission are able to distinguish far more about phytoplankton blooms than previous satellites. This image shows chlorophyll concentrations in the Norwegian Sea in July 2025. Chlorophyll acts as a proxy for phytoplankton, which produce the chemical as they process sunlight into food and oxygen.

    Despite their microscopic size, phytoplankton have enormous collective effects. Scientists estimate that phytoplankton produce as much as half of the Earth’s oxygen in addition to helping transport carbon dioxide from the atmosphere into the deep ocean. They are also the foundation of the marine food web, feeding nearly all life in the ocean. (Image credit: W. Liang; via NASA Earth Observatory)

    #eddies #flowVisualization #fluidDynamics #physics #phytoplankton #satelliteImage #science

  7. Baltic Bloom

    June and July brings blooming phytoplankton to the Baltic Sea, seen here in late July 2025. On-the-water measurements show that much of this bloom was cyanobacteria, an ancient type of organism among the first to process carbon dioxide into oxygen. These organisms thrive in nutrient- and nitrogen-rich waters. Here, they mark out the tides and currents that mix the Baltic. Zoom in on the full image, and you’ll see dark, nearly-straight lines across the swirls; these are the wakes of boats. (Image credit: M. Garrison; via NASA Earth Observatory)

    #eddies #flowVisualization #fluidDynamics #mixing #ocean #physics #phytoplankton #satelliteImage #science

  8. Baltic Bloom

    June and July brings blooming phytoplankton to the Baltic Sea, seen here in late July 2025. On-the-water measurements show that much of this bloom was cyanobacteria, an ancient type of organism among the first to process carbon dioxide into oxygen. These organisms thrive in nutrient- and nitrogen-rich waters. Here, they mark out the tides and currents that mix the Baltic. Zoom in on the full image, and you’ll see dark, nearly-straight lines across the swirls; these are the wakes of boats. (Image credit: M. Garrison; via NASA Earth Observatory)

    #eddies #flowVisualization #fluidDynamics #mixing #ocean #physics #phytoplankton #satelliteImage #science

  9. This was a pretty decent portion of #fishnchips offered by #Eddies in #Tammisaari / #Ekenäs.

    As you can see, all the proper condiments!

  10. This was a pretty decent portion of #fishnchips offered by #Eddies in #Tammisaari / #Ekenäs.

    As you can see, all the proper condiments!

  11. 30-May-2025
    Small #currents, big impact: #Satellite breakthrough reveals hidden #ocean forces
    Texas A&M's Jinbo Wang and an international team use SWOT satellite data to uncover powerful submesoscale #eddies, reshaping our understanding of #OceanClimateDynamics.

    eurekalert.org/news-releases/1 #science #OceanCurrents

  12. 30-May-2025
    Small #currents, big impact: #Satellite breakthrough reveals hidden #ocean forces
    Texas A&M's Jinbo Wang and an international team use SWOT satellite data to uncover powerful submesoscale #eddies, reshaping our understanding of #OceanClimateDynamics.

    eurekalert.org/news-releases/1 #science #OceanCurrents

  13. Small #ocean swirls may have an outsized affect on #climate, #NASA #satellite shows
    Surface Water and Ocean Topography (#SWOT) satellite lets scientists observe small-scale #eddies and waves for the first time. Its Ka-band Radar Interferometer scans 120-km-wide swaths of sea surface height, delivering two-dimensional measurements with far greater resolution and lower noise than earlier altimeters. The satellite's 21-day orbit enables repeated global coverage.
    theregister.com/2025/04/17/sma

  14. Small #ocean swirls may have an outsized affect on #climate, #NASA #satellite shows
    Surface Water and Ocean Topography (#SWOT) satellite lets scientists observe small-scale #eddies and waves for the first time. Its Ka-band Radar Interferometer scans 120-km-wide swaths of sea surface height, delivering two-dimensional measurements with far greater resolution and lower noise than earlier altimeters. The satellite's 21-day orbit enables repeated global coverage.
    theregister.com/2025/04/17/sma

  15. 💡 New Preprint!
    What are the benefits of an online versus offline learning approach? Explore our application of online training approach to learning subgrid parameterisations of baroclinic ocean #eddies.

    👉 Find out more: arxiv.org/abs/2411.14106

    #ESMs

  16. 💡 New Preprint!
    What are the benefits of an online versus offline learning approach? Explore our application of online training approach to learning subgrid parameterisations of baroclinic ocean #eddies.

    👉 Find out more: arxiv.org/abs/2411.14106

    #ESMs

  17. 🎆 Happy New Year 2025! ✨

    This year #AI4PEX goal is to improve the representation of three important processes in climate models:

    (i) the response of tropical and subtropical low clouds to #warming;
    (ii) the vegetation response to increased CO2;
    (iii) role of mesoscale processes (#eddies) in the ocean.

  18. 🎆 Happy New Year 2025! ✨

    This year #AI4PEX goal is to improve the representation of three important processes in climate models:

    (i) the response of tropical and subtropical low clouds to #warming;
    (ii) the vegetation response to increased CO2;
    (iii) role of mesoscale processes (#eddies) in the ocean.

  19. Lines of Ice Eddies

    In February 2024, the North Atlantic’s sea ice reached its furthest extent of the season, limning the coastline with tens of kilometers of ice. These images — both capturing the Labrador coast on the same day — show the swirling patterns marking the wispy edges of ice field. In this region, the ice is likely following an eddy in the ocean below. Eddies like these can form along the edges where warm and cold currents meet. An ice eddy is particularly special, though, as the water must be warm enough to fragment the sea ice, but not so warm that it melts the smaller ice pieces. (Image credit: top – NASA, lower – M. Garrison; via NASA Earth Observatory)

    This satellite image shows sea ice off the Labrador coast, on the same day in February 2024.

    #astronaut #eddies #flowVisualization #fluidDynamics #physics #satelliteImage #science #seaIce

  20. Captured in March 2024, this satellite image of the Gulf of Oman comes from an instrument aboard the PACE spacecraft. The picture of a phytoplankton bloom is not quite natural-color, at least not as our eyes would see it. Instead, engineers combined data taken from multiple wavelengths and adjusted it to bring out the fine details. It’s not what we’d see by eye, but every feature you see here is real.

    Traditionally, the only way to identify the species of a phytoplankton bloom like this one is by taking a sample directly. But PACE’s instruments can detect hundreds of wavelengths of light, offering enough color detail that scientists may soon be able to identify and track phytoplankton species by satellite image alone. I wonder if distinguishing species could also provide some quantitative flow visualization from a series of these images. In the meantime, at least we can enjoy the view! (Image credit: J. Knuble; via NASA Earth Observatory)

    https://fyfluiddynamics.com/2024/09/swirls-of-green-and-teal/

    #eddies #flowVisualization #fluidDynamics #physics #phytoplankton #satelliteImage #science #turbulence

  21. The obstacle is a pencil, stationary, while the lazy Susan spins underneath with the fluid. The #rheoscopic fluid (easily made at home, more on that on another post) allows the currents to be seen easily. An instability makes the fluid "oscillate" and create the von Kármán vortices as it flows around the pencil. Here's a video:

    [3/4]
    #eddies #flowVisualization #fluidDynamics #fluidsAsArt #physics #science

  22. The obstacle is a pencil, stationary, while the lazy Susan spins underneath with the fluid. The #rheoscopic fluid (easily made at home, more on that on another post) allows the currents to be seen easily. An instability makes the fluid "oscillate" and create the von Kármán vortices as it flows around the pencil. Here's a video:

    [3/4]
    #eddies #flowVisualization #fluidDynamics #fluidsAsArt #physics #science

  23. Turbulent flows feature swirling eddies over a range of sizes — the larger the size range, the higher the Reynolds number. In this satellite image, sediment highlights these eddies in shades of turquoise, showing off the complexity of the flows created where rivers, ocean, and tides meet. The eddies we see here stretch from kilometers in width down to a handful of meters, but the flow’s turbulence persists down to millimeter-scales before viscosity damps it out. (Image credit: L. Dauphin; via NASA Earth Observatory)

    https://fyfluiddynamics.com/2024/08/sediment-swirls/

    #eddies #flowVisualization #fluidDynamics #fluidsAsArt #physics #ReynoldsNumber #science #sedimentation #turbulence

  24. Our #turbulence #eddies experiment in Cook Strait Te Moana o Raukawa off to an appropriate gale force start… #oceanography #mixing

  25. Our #turbulence #eddies experiment in Cook Strait Te Moana o Raukawa off to an appropriate gale force start… #oceanography #mixing

  26. I've been looking into why Waihau Bay near the East Cape of New Zealand is such a good location for recreational Southern Bluefin Tuna fishing. After working in California for 11 years, the sparsity of oceanographic information about the region is startling for me.
    #oceanography #fisheries #GameFishing #tuna #BlueFinTuna #eddies #canyons #SecondaryProduction #pilchards #krill #Sardines

  27. I've been looking into why Waihau Bay near the East Cape of New Zealand is such a good location for recreational Southern Bluefin Tuna fishing. After working in California for 11 years, the sparsity of oceanographic information about the region is startling for me.
    #oceanography #fisheries #GameFishing #tuna #BlueFinTuna #eddies #canyons #SecondaryProduction #pilchards #krill #Sardines

  28. @blindcoder: Hehe. Wobei ich ja bei #Eddies auch immer noch an was anderes denke. IIRC irgendwelche Phänomene/Wesen in irgendeiner SciFi-Serie oder so. Weiß nur nimmer in welcher.

    Dachte ja zuerst an The #Hitchhiker's Guide to the Galaxy #THHGTTG, aber dort ist #Eddie nur der Bordcomputer der #HeartOfGold: hitchhikers.fandom.com/wiki/Ed

    Ich habe aber wirklich Plural als Begriff im Kopf. Hmmm, vielleicht waren's die hier? intl.startrek.com/database_art — Weiß nimmer.

  29. @blindcoder: Hehe. Wobei ich ja bei #Eddies auch immer noch an was anderes denke. IIRC irgendwelche Phänomene/Wesen in irgendeiner SciFi-Serie oder so. Weiß nur nimmer in welcher.

    Dachte ja zuerst an The #Hitchhiker's Guide to the Galaxy #THHGTTG, aber dort ist #Eddie nur der Bordcomputer der #HeartOfGold: hitchhikers.fandom.com/wiki/Ed

    Ich habe aber wirklich Plural als Begriff im Kopf. Hmmm, vielleicht waren's die hier? intl.startrek.com/database_art — Weiß nimmer.

  30. A showcase of Saturn's active atmosphere! View of the #dynamics of #Saturn #atmosphere at the visible #cloud layer, from our global #climate computer #model, highlighting #JetStream (red<>blue steps) #vortices (rounded red or blue areas) #waves (oscillations from red to blue) #eddies (random red and blue fluctuations). This is a #PotentialVorticity map and this comes from our paper, see free #arxiv #PDF version arxiv.org/pdf/1811.01250.pdf #astro #climate #FluidDynamics #gfd #astrodon #SolarSytem

  31. A showcase of Saturn's active atmosphere! View of the #dynamics of #Saturn #atmosphere at the visible #cloud layer, from our global #climate computer #model, highlighting #JetStream (red<>blue steps) #vortices (rounded red or blue areas) #waves (oscillations from red to blue) #eddies (random red and blue fluctuations). This is a #PotentialVorticity map and this comes from our paper, see free #arxiv #PDF version arxiv.org/pdf/1811.01250.pdf #astro #climate #FluidDynamics #gfd #astrodon #SolarSytem

  32. one of our #drifters is making a break for it... in the middle of the Strait - hoping it will turn south again. Still its a nice day forecast for tomorrow so the team should have a pleasant trip out to reel it in... while I eat more #SausageRolls we are looking at the #eddies in the middle of the strait. #oceanography #tides #boating #climate