#seaice — Public Fediverse posts

"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

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

4 min ago @ 4015 Pasadena Pl NE, Seattle, WA 98105, USA

https://iceout.org/en/reportInfo/143570
#SeaICE #SeattleICE #ICE #Seattle

4 min ago @ 4015 Pasadena Pl NE, Seattle, WA 98105, USA

https://iceout.org/en/reportInfo/143570
#SeaICE #SeattleICE #ICE #Seattle

4 min ago @ 4015 Pasadena Pl NE, Seattle, WA 98105, USA

https://iceout.org/en/reportInfo/143570
#SeaICE #SeattleICE #ICE #Seattle

4 min ago @ 4015 Pasadena Pl NE, Seattle, WA 98105, USA

https://iceout.org/en/reportInfo/143570
#SeaICE #SeattleICE #ICE #Seattle

4 min ago @ 4015 Pasadena Pl NE, Seattle, WA 98105, USA

https://iceout.org/en/reportInfo/143570
#SeaICE #SeattleICE #ICE #Seattle

5 min ago @ Aurora Ave N, Seattle, WA, USA

https://iceout.org/en/reportInfo/143503
#SeaICE #SeattleICE #ICE #Seattle

5 min ago @ Aurora Ave N, Seattle, WA, USA

https://iceout.org/en/reportInfo/143503
#SeaICE #SeattleICE #ICE #Seattle

11 min ago @ Stone Avenue North & North 125th Street, Seattle, WA, USA

https://iceout.org/en/reportInfo/143502
#SeaICE #SeattleICE #ICE #Seattle

4 min ago @ The Home Depot, Aurora Avenue North, Seattle, WA, USA

https://iceout.org/en/reportInfo/143491
#SeaICE #SeattleICE #ICE #Seattle

5 min ago @ 3935 9th Ave S, Seattle, WA 98108, USA

https://iceout.org/en/reportInfo/143484
#SeaICE #SeattleICE #ICE #Seattle

26 min ago @ 701 5th Ave, Seattle, WA 98104, USA

https://iceout.org/en/reportInfo/143432
#SeaICE #SeattleICE #ICE #Seattle

The place that never freezes: the Arctic habitat where global heating threatens more ice, not less
By Words and pictures by Jimmy Thomson in Nunavut, Canada

The race to study the North Water between Canada and Greenland before it changes has led to a bold plan for an Inuit-run protected area

https://www.theguardian.com/environment/2026/sep/03/the-place-that-never-freezes-the-arctic-habitat-where-global-heating-threatens-more-ice-not-less

#Seaice #Ice #Environment #Canada #Greenland #Oceans #Polarregions #Americas #Climatecrisis #Coastlines #Worldnews #Arctic #Wildlife #Cetaceans #Indigenouspeoples #Marinelife #Nationalparks #TheGuardian #Words #picturesbyJimmyThomsoninNunavut #Canada

The place that never freezes: the Arctic habitat where global heating threatens more ice, not less https://www.theguardian.com/environment/2026/sep/03/the-place-that-never-freezes-the-arctic-habitat-where-global-heating-threatens-more-ice-not-less #SeaIce #Ice #Environment #Canada #Greenland #Oceans #PolarRegions #Americas #ClimateCrisis #Coastlines #WorldNews #Arctic #Wildlife #Cetaceans #IndigenousPeoples #MarineLife #NationalParks

Mapping Snow On Northern Winter Roads - A Dual-Frequency Polarimetric Radar Approach For Snow Characterization Over Land, Lake And Sea Ice
--
https://doi.org/10.5194/tc-20-4367-2026 <-- shared paper
--
H/T @Monojit Saha | Geospatial Analysis | Remote Sensing | Satellite Altimetry | Cryosphere
“Winter roads are essential transportation links for many remote northern communities, but their safety and reliability depend strongly on snow conditions and ice growth. In this study [link above], [the authors] evaluated a fully polarimetric, dual-frequency Ku- and Ka-band radar approach for retrieving snow depth across landfast sea ice, lake ice, and tundra.
Using field measurements near Churchill, Manitoba, and Resolute Bay, Nunavut [Canada], [they] found that the approach produced snow-depth retrieval bias and error within 3 cm over landfast ice, with encouraging Ku-band performance over frozen ground as well. [They] also developed an interface-detection approach for lake ice that can retrieve both snow depth and ice thickness - a promising direction for characterizing conditions relevant to winter-road planning and safety…”
--
“Winter roads are lifelines for remote northern communities. Built over land, lakes, rivers, and sea ice, these travel routes are increasingly vulnerable to warming temperatures and variable precipitation. To ensure safety and adapt to these changes, operators require high-resolution monitoring of snow depth across these diverse surfaces, as natural snow accumulation dictates ice growth rates, route viability and road stability. This study extends our polarimetric radar method, previously demonstrated on pack ice, to landfast sea ice, tundra, and frozen lakes and assesses how well we can retrieve snow depth over these surfaces. Results indicate consistency with earlier sea ice analyses, maintaining a mean snow depth retrieval bias and error within 3 cm over the landfast ice. Promising performance is also found over frozen ground using Ku-band (mean biases less than 6 cm). To address the specific challenge of lake ice, which includes strong returns from the ice/water interface, we present a new interface-detection technique that simultaneously retrieves snow depth and ice thickness. While current validation focuses on undisturbed snow, this approach could provide a path forward for characterizing the cryospheric environment in a way that can directly support the optimization of winter roads…”
#Cryosphere #RemoteSensing #Snow #SeaIce #LakeIce #WinterRoads #characterisation #ArcticResearch #EarthObservation #PolarScience #maintainence #ploughing #winter #roads #transportation #northern #communities #mines #FirstNation #canada #remotesensing #polarimetric #radar #snowdepth #ice #landfastice #iceroad #tundra #Churchill #Manitoba #ResoluteBay #Nunavut #monitoring #planning #safety #trucking #freight

In July 2026, the #SeaIce global extent was 7.8% below 1991-2020 mean. Since the beginning of records (1978):
- #Arctic, 6th lowest monthly mean, with 9.6% less extent than normal (-878,322 km²)
- #Antarctic, 5th lowest monthly mean, with 6.4% less exent than normal (-1,044,619km²)
for more: https://osi-saf.eumetsat.int/sea-ice-index
#ClimateChange #OSISAF @eumetsat

In June 2026, the #SeaIce global extent was 7.1% below 1991-2020 mean. Since the beginning of records (november 1978):
- #Arctic, 6th lowest monthly mean, with -5.0% less extent than normal (-567,575 km²)
- #Antarctic, 6th lowest monthly mean, with -8.3% less exent than normal (-1,141,933 km²)

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

#ClimateChange #OSISAF @eumetsat

In May 2026, the #SeaIce global extent was 6.9% below 1991-2020 mean. Since the beginning of records (1978):
- #Arctic, 4th lowest monthly mean, with 4.4% less extent than normal (-575,397km²)
- #Antarctic, 7th lowest monthly mean, with 8.7% less extent than normal (-923,279km²)

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

#ClimateChange #OSISAF @eumetsat

I am on my way to the 13th edition for the Sea Ice Data Assimilation Workshop, hosted by the Danish Meteorological Institute in Copenhagen. This is one of the most important workshop series for our community, always packed with good talks and posters.

I'll give a presentation tomorrow morning, focusing on the current status and recent upgrades of the @osi_saf #SeaIce #Climate Data Records. Still need to work on my slides 😅 , with me luck.

Of course, we will also discuss about the future @CopernicusEU satellites #CIMR and #CRISTAL !

#conference #SeaIce #satellite

https://iicwgda2026copenhagen.wordpress.com/

Work-related: if you are curious about @osi_saf plans to transition their #seaice products from #AMSR2 to #AMSR3 over the summer, please visit https://osi-saf.eumetsat.int

In particular this page:
https://osi-saf.eumetsat.int/community/stories/implications-amsr2-being-replaced-amsr3-osi-saf-products

And yes, worth noting that #OSISAF is on Mastodon. Thank you @gwenbras !

Meereisflächen der Arktis und Antarktis im April 2026: https://www.wetterkontor.de/de/wetternews.asp

#wetter #météo #weather #climate #climatechange #April2026 #Nachrichten #Klima #Copernicus #seaice #Meereis #Arktis #Antarktis

Antarctic sea ice defied global warming for decades – now, hidden ocean heat is breaking through
#Antarctica #ClimateChange #Ocean #GlobalWarming #SeaIce #Ecology #Environment #Nature #Penguins #SouthernOcean #Wildlife #Earth #Sustainability #Climate
https://the-14.com/antarctic-sea-ice-defied-global-warming-for-decades-now-hidden-ocean-heat-is-breaking-through/

In March 2026, the #SeaIce global extent was 6.8% below 1991-2020 mean. Since the beginning of records (1978):
- #Arctic, 1st lowest monthly mean, with 5.7% less extent than normal (-856,735km²)
- #Antarctic, 14th lowest monthly mean, with -10.1%> less exent than normal(-441,262km²)

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

#ClimateChange #OSISAF @eumetsat

In february 2026, the #SeaIce global extent was 4.5% below 1991-2020 mean. Since the beginning of records (1978):
- #Arctic, 3rd lowest monthly mean, with 4.8% less extent than normal (-712,597km²)
- #Antarctic, 26th lowest monthly mean, with 3.1% less extent than normal (-105,212km²)

for more: https://osi-saf.eumetsat.int/sea-ice-index
#ClimateChange #OSISAF @eumetsat

Rain is coming to Antarctica – here’s how it will change the frozen continent
#Antarctica #AntarcticPeninsula #ClimateChange #Glaciers #IceSheets #SeaIce #IceShelves #LarsenIceShelf #Penguins #Penguins #ExtremeWeather #PolarResearch #Environment
https://the-14.com/rain-is-coming-to-antarctica-heres-how-it-will-change-the-frozen-continent/

In January 2026, the #SeaIce global extent was 6.7% below/over 1991-2020 mean. Since the begining of records (1978):
- #Arctic, 3rd lowest monthly mean, with 5.5% less extent than normal (-769,999km²)
- #Antarctic, 18th lowest monthly mean, with 8.3% less exent than normal (-451,325km²)

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

#ClimateChange #OSISAF @eumetsat

In November 2025, the #SeaIce global extent was 8.7% below 1991-2020 mean. Since the beginning of records (1978):
- #Arctic, 2nd lowest monthly mean, with 11.7% less extent than normal (-1,198,440km²)
- #Antarctic, 4th lowest monthly mean, with 7.3% less extent than normal (-1,188,737 km²)
more: https://osi-saf.eumetsat.int/sea-ice-index
#ClimateChange #OSISAF @eumetsat

In August 2025, the #SeaIce global extent was 8.4% below 1991-2020 mean. Since the beginning of records (November 1978):
- #Arctic, 8th lowest monthly mean, with 12,2% less extent than normal (-823 904km²)
- #Antarctic, 3rd lowest monthly mean, with 6.9% less exent than normal (-1 264 062km²)

for more: https://osisaf-hl.met.no/v2p3-sea-ice-index

#ClimateChange #OSISAF @eumetsat

In July 2025, the #SeaIce global extent was 8.9% below 1991-2020 mean. Since the beginning of records (1978):
- #Arctic, 4th lowest monthly mean, with 9.9% less extent than normal (-906.931 km²)
- #Antarctic, 3rd lowest monthly mean, with 8.3% less exent than normal (-1.363.243 km²)
For more: https://osisaf-hl.met.no/v2p2-sea-ice-index
#ClimateChange #OSISAF @eumetsat

In June 2025, the #SeaIce global extent was 7.9% below 1991-2020 mean. Since the begining of record (november 1978):
- #Arctic, 2th lowest June monthly mean, with 6.4% less extent than normal (-733 404km²)
- #Antarctic, 3th lowest June monthly mean, with 9.1% less exent than normal (-1 255 507km²)

for more: https://osisaf-hl.met.no/v2p2-sea-ice-index

#ClimateChange #OSISAF

'Last Ice Area' In The Arctic Could Disappear Much Sooner Than Previously Thought
--
https://phys.org/news/2025-01-ice-area-arctic-sooner-previously.html <-- shared technical article
--
https://doi.org/10.1038/s43247-025-02034-5 <-- shared paper
--
#GIS #spatial #mapping #Arctic #Canada #LastIceArea #LIA #icedependent #species #ArcticOcean #icefree #climatechange #ecology #polarbears #belugas #bowheadwhales #walruses #ringedseals #beardedseals #ivorygulls #spatialanalysis #model #modeling #spatiotemporal #Tuvaijuittuq #FirstNation #inuit #indigenous #seaice #simulations #archipelago

We have never measured so little #SeaIce around #Svalbard #Norway in mid November.

The #OSISAF satellite-based timeseries goes back to the late 1970s.

-> https://cryo.met.no/en/sea-ice-index-sval

#ArcticOcean could be '#icefree' within the decade, researchers warn
Loss of #Arctic #seaice has long been a graphic measure of human-caused climate change, with wrenching images of suffering polar bears illustrating a worsening planetary crisis. Now, new research has found that Arctic #Ocean sea ice is shrinking even faster than previously thought -- and that the Arctic may start to see its first "ice-free" days within the current decade.
https://www.latimes.com/environment/story/2024-03-05/the-arctic-ocean-could-be-ice-free-within-a-decade #climatechange #climatecrisis

The whole thread is worth reading, but the discussion below about #SeaIce datasets and #Osisaf is very interesting for those of us who run and/or use #CimateModels for the #Arctic....

https://fediscience.org/@phil_browne/111171140478017189

Today left yesterday (that is Sept 17th) as the "so far" minimum #Arctic #seaice extent for 2023.

A minimum at this stage would result in the sixth-lowest minimum extent on record.

Not record-low, but far lower than most years.

Let's see what tomorrow brings.

Source: #OSISAF

For a week, September 12th has marked the date with the largest #Antarctic #seaice extent in 2023.
This is absolutely record-low for an Antarctic maximum extent!

This still can change and we hope it will 🤞

Source: #OSISAF Sea Ice Index v2.2

Has the #Antarctic #seaice stopped growing in extent this winter?

Source: #OSISAF

As we approach the annual minimum of #Arctic #seaice extent for 2023, it looks like it will be one of the six lowest on record.

To put it in perspective, the years with lower minimums than this year (in order from lowest to highest) are 2012, 2020, 2007, 2016, and 2019.

Source: #OSISAF Sea Ice Index v2.2

We are approaching the yearly minimum extent of the #Arctic #Seaice.

It seems that we won't reach a record low this year, but the minimum will still be significantly below the 1981-2010 baseline.

Source: #OSISAF

No surprise. But still crazy.

#Antarctic #SeaIce extent is low.

This graphic shows the ranking of sea-ice extent by month. Take a look at the last line (representing 2023 and updated including August).

Source: #OSISAF
👉 https://cryo.met.no/en/sea-ice-index-sh

#Arctic #SeaIce extent was 9th lowest in August (#OSISAF).

With only 2 weeks left of the melt season, we are not heading towards a record minimum this year.

Still, the 📉 trend is clear: since 1978, #satellites recorded an average loss of 70,000 km2 of ice *per year*.

Arctic Report Card 2022 [NOAA]
--
https://youtu.be/_WbWjLUTvZM <-- shared 2021 video
--
https://youtu.be/MDG-moe0tZs <-- shared 2022 video
--
https://arctic.noaa.gov/Report-Card/Report-Card-2022 <-- shared 2022 report
--
#NOAA #ArcticReportCard #GIS #spatial #mapping #arctic #environmental #people #airtemperatures #temperatures #climatechange #impacts #land #ocean #birds #ecosystems #wildlife #fish #fisheries #coastal #coastalcommunities #permafrost #changes #events #change #seaice #warming #impactassessment #environmentalimpact #environmentalmonitoring #extremeweather #engineering #risk #hazard #community #communityimpact #snow #resources #icesheet #melting #satellite #remotesensing
#NOAA

Five consecutive days of strong northward #icedrift causes a rapid drop in the #seaice conditions in the regions of #Svalbard and northern #Barents Sea.

The drop in the #seaice extent in the #Barents Sea is difficult to miss in this figure.

Are we going towards a record-LONG #icefree Barents Sea? 🤔

Source: #OSISAF