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.

https://www.eurekalert.org/news-releases/1085746 #science #OceanCurrents

Corduroy Trouser Rampage – Ep. 51

In which we skip diagonally along on a corduroy trouser rampage, tread lightly lest we tread on your flags, and consider the character of Eddy’s compatriot. PD === Don’t just say to yourself “this one’s for the birds”, click on the player. You know you ought to…. […]

https://offgrid.tlmb.net/2025/04/27/corduroy-trouser-rampage-ep-51/

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.
https://www.theregister.com/2025/04/17/small_ocean_currents_climate_impact/

💡 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: https://arxiv.org/abs/2411.14106

#ESMs

🎆 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.

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)

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

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

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

This is a rotating shallow water #experiment, essentially a lazy Susan powered by a #LEGO motor and filled with a #rheoscopic fluid. Here's the setup:

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#eddies #flowVisualization #fluidDynamics #fluidsAsArt #physics #science #diynamics

I made a circular von Kármán vortex street!

[1/4] 🧵
#eddies #flowVisualization #fluidDynamics #fluidsAsArt #physics #science #diynamics

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

📆 The next #ScienceArt piece from our #nextGEMS calendar, created by researcher Lukas Kluft, paints a scene where Potential Vorticity (PV) softly visualises #eddies in the ocean. 🌀

💡PV in weather is like the spin of swirling water in a sink, but also considering how deep the water is. 🥼Commonly, scientists use PV as a measure to predict storms.

#H2020 #Weather #ClimateScience #ClimateChange #SciCom #EarthSystemModelling

Mapping the Ocean’s Motion Energy
https://eos.org/articles/mapping-the-oceans-motion-energy #Earth #oceanography #enegry #mapping #climate #gyres #eddies

Oceanography, Seafloor Mapping And Satellite Combine To Map World’s Strongest Current
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https://www.csiro.au/en/news/All/News/2023/December/Oceanography-seafloor-mapping-and-satellite-combine-to-map-worlds-strongest-current <-- shared technical article
--
#GIS #spatial #mapping #remotesensing #satellite #SWOT #survey #ship #sonar #AntarcticCircumpolarCurrent #climatechange #SLR #sealevelrise #marine #hydrospatial #research #seafloor #FOCUS #Antarctic #integrateddata #elevation #bathmyetry #instrumentation #currents #oceancurrents #eddy #eddies #heat #carbon #ocean #Australia #circulation #model #modeling #CSIRO #oceangraphy
@CSIRO

https://lateboomersden.blog/2023/10/02/eddies-in-lifes-current/
About my bad habits. Can anyone identify?
#eddies, #habits, #LegendaryPinkDots, #loops

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

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

@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: https://hitchhikers.fandom.com/wiki/Eddie_the_Computer

Ich habe aber wirklich Plural als Begriff im Kopf. Hmmm, vielleicht waren's die hier? https://intl.startrek.com/database_article/tachyon-eddies — Weiß nimmer.

Current makes eddies
Swirling memories away
River makes new ones.

#dailyhaikuprompt #river #haiku #Eddies #Memories