#seaice — Public Fediverse posts

In August 2026, the #SeaIce global extent was 7.2% below 1991-2020 mean. Since the beginning of records (1978):
- #Arctic, 12th lowest monthly mean, with 9.1% less extent than normal (-617,526km²)
- #Antarctic, 4th lowest monthly mean, with 6.5% less exent than normal (1,178,424km²)

for more: https://osi-saf.eumetsat.int/sea-ice-index

9 min ago @ 2103 Western Ave, Seattle, WA 98121, USA

https://iceout.org/en/reportInfo/144187
#SeaICE #SeattleICE #ICE #Seattle

Sea salt may have made Snowball Earth far colder than previously thought

Salt crystals left behind on extremely cold tropical sea ice may …
#NewsBeep #News #Science #albedofeedback #ancientEarth #AU #Australia #Climatechange #climatemodeling #Cryogenian #globalglaciation #GreenGoodNews #hydrohalite #Marinoanglaciation #Neoproterozoic #NewDiscoveries #PlanetaryScience #research #saltalbedo #seaice #seasalt #SnowballEarth #Sturtianglaciation #UniversityofTromsø
https://www.newsbeep.com/au/882608/

Sea salt may have made Snowball Earth far colder than previously thought

Salt crystals left behind on extremely cold tropical sea ice may …
#NewsBeep #News #Science #albedofeedback #ancientEarth #AU #Australia #Climatechange #climatemodeling #Cryogenian #globalglaciation #GreenGoodNews #hydrohalite #Marinoanglaciation #Neoproterozoic #NewDiscoveries #PlanetaryScience #research #saltalbedo #seaice #seasalt #SnowballEarth #Sturtianglaciation #UniversityofTromsø
https://www.newsbeep.com/au/882608/

Sea salt may have made Snowball Earth far colder than previously thought

Salt crystals left behind on extremely cold tropical sea ice may …
#NewsBeep #News #Science #albedofeedback #ancientEarth #AU #Australia #Climatechange #climatemodeling #Cryogenian #globalglaciation #GreenGoodNews #hydrohalite #Marinoanglaciation #Neoproterozoic #NewDiscoveries #PlanetaryScience #research #saltalbedo #seaice #seasalt #SnowballEarth #Sturtianglaciation #UniversityofTromsø
https://www.newsbeep.com/au/882608/

9 min ago @ 5980 1st Ave S, Seattle, WA 98108, USA

https://iceout.org/en/reportInfo/144176
#SeaICE #SeattleICE #ICE #Seattle

Sea ice in the Beaufort and Chukchi Seas continues melt, with the combined extent slightly higher than last year but well below the 1991-2020 median in NSIDC data. The higher concentration sea ice north of the northeast Alaska coast is an area of thicker multi-year ice that moved southwest in the spring from the Canadian High Arctic in the ocean currents. @Climatologist49 @ZLabe

#akwx #Arctic #SeaIce

"all this ICE got me changing my climate"

Small seaice bot progress update, mostly done with downloading and ingesting the entire US as vector shapefiles, converting to GeoJSON and a touch more work to index into the db.

Pumping BigXThe Plug while we crawl up ICE's ass....

@seaice_usa @seaice

#BigXThaPlug #TracksToHackTo #Climate #ICEWatch #devlog #seaice

5 min ago @ Pine Street, Seattle, WA, USA

https://iceout.org/en/reportInfo/144046
#SeaICE #SeattleICE #ICE #Seattle

24 min ago @ Downtown Seattle YMCA, 4th Avenue, Seattle, WA, USA

https://iceout.org/en/reportInfo/143985
#SeaICE #SeattleICE #ICE #Seattle

The U.S. National Ice Center's Northwest Passage (connecting the northwest Atlantic to the Pacific Ocean) sea ice analysis product was last updated three weeks ago. This is not helpful.
@Climatologist49 @ZLabe

https://usicecenter.gov/Products/ArcticPeriodic

#SeaIce #Arctic

Sea ice extent in the Chukchi and Beaufort Seas continues to decrease and is below the 1991-2020 median in NSIDC data. However, there is still moderately high ice concentrations not far north of the Alaska coast. @Climatologist49 @ZLabe

#akwx #Arctic #SeaIce

Pressure ridge (ice) (Glaciology 🗻)

A pressure ridge is a linear pile-up of sea ice fragments formed in pack ice by accumulation in the convergence between floes in an oceanic or coastal environment. Such a pressure ridge develops in an ice cover as a result of a stress regime established within the plane of the ice. Within sea ice expanses, pressure ridges originate from the int...

https://en.wikipedia.org/wiki/Pressure_ridge_(ice)

#PressureRidge #SeaIce #Landforms #Glaciology #Geomorphology

#SeaIce loss in the #Arctic has triggered a critical #TippingPoint that's destroying the food chain

Story by Sascha Pare, June 8, 2026

"The Arctic Ocean has crossed a tipping point that is wreaking havoc on the region's food chain, with potentially dire consequences for commercial fishing and the ocean's capacity to soak up carbon, a new study reports.

"Scientists found that vast areas of melting sea ice in the Arctic are leading to a significant reduction in nitrate, a key nutrient that forms the base of the marine food web and thus underpins important regional fisheries. As the ice disappears, more light hits the water's surface, promoting the growth of microscopic, plant-like organisms called phytoplankton. When phytoplankton die, their cells sink to the seafloor and are decomposed by nitrate- and oxygen-consuming bacteria.

"The new study, published May 28 in the journal Communications Earth & Environment, found that the bacteria are consuming more nitrate than the Arctic ecosystem can withstand.

"This effect, known as 'denitrification,"' is irreversible under current climate conditions because we have passed a threshold where so much sunlight reaches the ocean that it's supercharging phytoplankton's productivity, said Marta Santos-García, a doctoral student of Arctic marine biogeochemistry at the University of Edinburgh in Scotland and the first author of the study.

" 'Even if sea ice were to increase temporarily, the Arctic nutrient system responds over much longer timescales,' Santos-García told Live Science in an email. 'Short-term increases in sea ice would be unlikely to rapidly reverse the decline in nitrate inventories, which may take much longer to recover.'

"Dropping nitrate levels may eventually come back to bite phytoplankton, because these tiny organisms need nitrate to carry out photosynthesis. As a result, the transition to a low-nitrate regime could accelerate #ClimateChange, as nitrate plays an essential role in the ocean's biological pump, which takes #CarbonDioxide from the atmosphere via photosynthesis and locks it away at depth when #phytoplankton and the animals that eat it die.

" 'With nutrients such as nitrate in limited supply this mechanism cannot work effectively,' Santos-García said.

"To understand ecosystem changes in the Arctic, the researchers analyzed two decades of data from the Fram Strait, a passage between Greenland and Svalbard, Norway, that is the main gateway through which Arctic waters flow into the Atlantic Ocean. They found a sharp decline in nitrate levels in this region after 2009, which coincided with a dramatic reduction in Arctic sea ice and a gradual shift in phytoplankton communities toward smaller species that can cope with low nutrient levels.

" 'Shifts towards smaller phytoplankton have already been observed in parts of the Arctic, although these changes have not previously been linked to nitrate losses,' Santos-García said. 'This matters because smaller phytoplankton are generally less efficient at transferring energy up the food web. More of the energy is recycled within microbial communities rather than being passed on to larger zooplankton, fish, seabirds, and marine mammals.'

"Phytoplankton sit at the very bottom of the marine food chain, so the impacts of nitrate depletion will ripple through the Arctic ecosystem, impacting species at the highest levels. This could also affect fisheries in regions that depend on Arctic nutrient exports, such as the North Atlantic. But pinpointing what will happen in ecosystems downstream of the Arctic Ocean requires more research, Santos-García said.

"For years, researchers thought the long-term impact of sea ice loss in the Arctic would be an increase in phytoplankton, because more organisms can bathe in sunlight and multiply when the sea ice extent is small. However, the increase in phytoplankton since 2009 has depleted nitrate levels enough to limit future phytoplankton growth.

"Whereas phytoplankton proliferation used to be limited by how much sunlight reached surface waters, it is now controlled by nitrate levels. Therefore, nitrate must be considered as a key driver of future changes in the Arctic, Santos-García said.

" 'As nitrate is the nutrient that limits Arctic productivity, understanding these changes is therefore important not only for Arctic communities and ecosystems, but also for improving projections of future climate change,' she said."

Source:
https://www.msn.com/en-us/weather/topstories/sea-ice-loss-in-the-arctic-has-triggered-a-critical-tipping-point-that-s-destroying-the-food-chain/ar-AA257Nx3?ocid=winp2fptaskbarhoverent&cvid=fc8829987c62417bd8585d854cb2ec7b&ei=5

Archived version:
https://archive.ph/E1Dlw

#ClimateChange #TippingPoint #GlobalWarming #WarmingOceans #ArcticEcosystems #SeaIce #OceansAreLife

Anyone have any clue where I can get a measuring tape for sea ice in Europe? The only supplier I have found is the very lovely and friendly Kovacs, but they are US based and the cost and time for delivery are crazy.
I mean one like this:

#glaciology #seaice #Hivemind #academicChatter

Anyone have any clue where I can get a measuring tape for sea ice in Europe? The only supplier I have found is the very lovely and friendly Kovacs, but they are US based and the cost and time for delivery are crazy. I mean one like this #glaciology #seaice #Hivemind

Meereisflächen in Arktis und Antarktis im Februar 2026: https://www.wetterkontor.de/de/wetternews.asp

#Meereis #seaice #climate #Klima #Februar

The Arctic Just Experienced Its Warmest Year on Record

https://murica.website/2025/12/the-arctic-just-experienced-its-warmest-year-on-record/

Meereisflächen in Arktis und Antarktis im Oktober 2025: https://www.wetterkontor.de/de/wetternews.asp

#wetter #météo #weather #climate #climatechange #Oktober #2025 #Arktis #Antarktis #seaice

Excellent first day @PolarRES annual meeting, some highlights: masses of interesting stuff on polar - lower latitude connections; excellent process studies on #clouds, #boundarylayer processes, #seaIce + #snow.
Good intro to sister projects @CRiceS @crices.bsky.social @OceanIceEU

"The West Antarctic Ice Sheet is the continent's largest contributor to rising seas and contains enough ice to increase the global mean sea level by over 17 feet, the study explains" https://www.commondreams.org/news/west-antarctic-ice-sheet Anyone got a map of how Dublin would look with a 5 metre sea rise? #Antarctic #SeaIce #SeaRise #Dublin

I have missed the last week of #30DayMapChallenge but this #AccidentalMap in #Sentinelhub #EOBrowser fits perfectly in today's theme #blue.

Here's a #5MinuteMap of SW #Greenland ( #Kapisillit ) showing #SeaIce forming in #fjords, #icebergs + some odd features I assume are shadows cast by #mountains under a low solar angle.

I'm not sure what the black dots are, I assume a processing artefact