#seaice — Public Fediverse posts

Sea ice extent in the Chukchi Sea (northwest of Alaska) has showed little overall change in the past week. An incoming storm will likely push low concentration ice north over the weekend, so it's likely that the minimum ice extent for 2026 in the Chukchi Sea is yet to come. #Arctic #SeaIce #akwx

Sea ice extent in the Chukchi Sea (northwest of Alaska) has showed little overall change in the past week. An incoming storm will likely push low concentration ice north over the weekend, so it's likely that the minimum ice extent for 2026 in the Chukchi Sea is yet to come. #Arctic #SeaIce #akwx

Sea ice extent in the Chukchi Sea (northwest of Alaska) has showed little overall change in the past week. An incoming storm will likely push low concentration ice north over the weekend, so it's likely that the minimum ice extent for the year in the Chukchi Sea is yet to come. @Climatologist49 @ZLabe

#akwx #SeaIce #Arctic

Sea ice extent in the Chukchi Sea (northwest of Alaska) has showed little overall change in the past week. An incoming storm will likely push low concentration ice north over the weekend, so it's likely that the minimum ice extent for the year in the Chukchi Sea is yet to come. @Climatologist49 @ZLabe

#akwx #SeaIce #Arctic

Sea ice extent in the Chukchi Sea (northwest of Alaska) has showed little overall change in the past week. An incoming storm will likely push low concentration ice north over the weekend, so it's likely that the minimum ice extent for the year in the Chukchi Sea is yet to come. @Climatologist49 @ZLabe

#akwx #SeaIce #Arctic

Sea ice extent in the Chukchi Sea (northwest of Alaska) has showed little overall change in the past week. An incoming storm will likely push low concentration ice north over the weekend, so it's likely that the minimum ice extent for the year in the Chukchi Sea is yet to come. @Climatologist49 @ZLabe

#akwx #SeaIce #Arctic

Sea ice extent in the Chukchi Sea (northwest of Alaska) has showed little overall change in the past week. An incoming storm will likely push low concentration ice north over the weekend, so it's likely that the minimum ice extent for the year in the Chukchi Sea is yet to come. @Climatologist49 @ZLabe

#akwx #SeaIce #Arctic

28 min ago @ 1049 Lakeview Blvd E, Seattle, WA 98102, USA

https://iceout.org/en/reportInfo/145096
#SeaICE #SeattleICE #ICE #Seattle

4 min ago @ 10616 16th Ave SW, Seattle, WA 98146, USA

https://iceout.org/en/reportInfo/144954
#SeaICE #SeattleICE #ICE #Seattle

29 min ago @ 8500 Linden Ave N, Seattle, WA 98103, USA

https://iceout.org/en/reportInfo/144934
#SeaICE #SeattleICE #ICE #Seattle

2 min ago @ 163 I-5, Seattle, WA, USA

https://iceout.org/en/reportInfo/144809
#SeaICE #SeattleICE #ICE #Seattle

14 min ago @ QFC, Holman Road Northwest, Seattle, WA, USA

https://iceout.org/en/reportInfo/144746
#SeaICE #SeattleICE #ICE #Seattle

Good news indeed! NSIDC's sea ice narrative is back. #Arctic #SeaIce

nsidc.org/sea-ice-toda...

RE: https://bsky.app/profile/did:plc:qqnyamsjitxnahe5yoe5lfag/post/3mv2axcmp6t2s

Arctic zigs; Antarctic zags | ...

...and the big dog. Longest / biggest, although lower operational risk (slightly) than the stretch north option.

Bearing in mind that it was also proposing putting an instrumented aircraft pretty close to an international marine boundary, so the political landscape forms part of planning.

#arctic #seaice #research

...here's the "stretch north" option - longer, riskier.

#arctic #seaice #research

That time I asked for aerial imagery supporting an Arctic expedition, timed to coincide with field sampling / drone flights / already planned satellite overpasses. This is one map (of 3), one possible flight path - the "small scenario".

While it had a solid science rationale supported by existing publications - and attracted a lot of big names to the table - the support request was denied.

#arctic #seaice #remotesensing #funding

5 min ago @ 9450 8th Ave SW, Seattle, WA 98106, USA

https://iceout.org/en/reportInfo/144514
#SeaICE #SeattleICE #ICE #Seattle

@ZLabe Promoting to #ClimateChange #SeaIce #Arctic

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

RE: https://fediscience.org/@Ruth_Mottram/116250388094443741

For the morning team: We're looking for scientists excited to work at the cutting edge of Polar science with the latest high resolution climate models and Earth Observation data.
Funding support available for travel, accomodation + food costs covered

#Arctic #Antarctic #Polar #ClimateScience #ClimateModelling #EarthObservation #Climate #IceSheets #SeaIce #Permafrost

#Antarctic #SouthersOcean #OceanCurrents #CircumpolarCurrent #OverturningCirculation #SeaIce #penguins #DurhamUniversity #COP30

#ICCI lecture: Basics on #Antarctica, and #climatechange consequences

https://www.youtube.com/watch?v=u3jN-P27znM

#climate #ClimateScience #ClimateEmergency #ClimateCrisis #ClimateBreakdown #ClimateDisruption #globalWarming #globalHeating #ExtremeWeather #polycrisis #EcosystemCollapse #systemcollapse #ecocide #fossilfuels #Co2 #Co2Emissions #methane #GreenhouseGases #KeepitInTheGround

‘Temporary reprieve’: Why is Arctic Sea ice melting more slowly despite global warming?

ADVERTISEMENT Arctic sea ice has been melting at a slower rate over the last 20 years, despite human-caused…
#NewsBeep #News #Environment #Arctic #AU #Australia #Climatechange #globalwarming #meltingice #Science #seaice
https://www.newsbeep.com/au/89718/

Just published:

Zeising, O., Hattermann, T., Kaleschke, L., Berger, S., Boebel, O., Drews, R., Ershadi, M. R., Fromm, T., Pattyn, F., Steinhage, D., and Eisen, O.: Enhanced basal melting in winter and spring: seasonal ice–ocean interactions at the Ekström Ice Shelf, East Antarctica, The Cryosphere, 19, 2837–2854, https://doi.org/10.5194/tc-19-2837-2025, 2025.

#ocean #antarctic #seaice #iceshelf #glacier

Oceanic Evasion Fuels Arctic Summertime Rebound Of Atmospheric Mercury And Drives Transport To Arctic Terrestrial Ecosystems
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https://doi.org/10.1038/s41467-025-56300-3 <-- shared paper
--
#GIS #spatial #mapping #mercury #Hg #contamination #summerrebound #arctic #summertime #atmospheric #transport #contaminate #terrestrial #ecosystems #Hg0 #model #modeling #framework #spatialanalysis #spatiotemporal #concentrations #seaice #atmosphere #river #riverine #GDAS #GEOS #GEOSChem #MERRA2 #GTMM #global #NDVI #remotesensing #cycling #marine #ocean #water #hydrology #seawater #icemelt #anthropogenic #coast #coastal #tundra #permafrost #climatechange #evasion #vegetation #uptake #mitigation

According to Era5, JFM ice concentration/extent in Greenland sea is on an unusual and steep upward slope since 2021.
I wonder whether this has anything to do with the #AMOC. Does fresher water simply freeze easier. Or is the reduced inflow of water due to decreasing convection making ice form easier🤔

Or something happening to the wind that used to push new #seaice away from #Greenland's coast –  and stopped doing that since 2021.
What would be the cause for wind change near GL coast in January to March?🤔
Ah. Of course! #SuddenStratosphericWarming changes the wind direction from West-East to East-West!
We had several #SSW since 2021.
So they were pushing new ice against the coast where it can stick together easily? 🤔

AMOC-independent – unless these SSW themselves have something to do with AMOC.
But I don't think they do. I think, they occur a) during #LaNina with b) low sea ice in the Kara sea or Laptev sea (Russian coast).

Altho... 🤔🤔🤔 a slowing AMOC is causing a quasi-permanent La Nina state, as per modelling by M. England et al 2022.
So in a way, maybe AMOC has gotten slow enough for producing the unusual 3 La Nina winters in a row – and in teamwork with #climatechange causing low sea ice in Kara or Laptev sea – produced the unusual frequency of SSW – who caused sea ice on Greenland's coast to stick easily during January-March 2021-2024.
Could be AMOC related after all. 🤔 😁

Current antarctic sea ice concentration & extent

#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole

Current antarctic sea ice concentration & extent

#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole

Current antarctic sea ice concentration & extent

#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole

Current antarctic sea ice concentration & extent

#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole

Current antarctic sea ice concentration & extent

#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole

Current antarctic sea ice concentration & extent

#Antarctica #Antarctic #AntarcticSea #Climate #ClimateChange #Earth #ice #iceshelf #nsidc #research #SeaIce #snow #southpole

Let's meet people working to provide the best #Ocean satellite observation possible 🛰 🌍. Today, Steinar Eastwood from the Norwegian Meteorological Institute presents how he's been working for OSI SAF #SeaIce and #SeaSurfaceTemperature from our team in #Oslo... Whach this video to learn more !
https://youtu.be/BbDulkeHPDU?si=JWxGYINVqzZbSzNC

#ClimateCatastrophe #Glaciers #SeaLevelRise #Antarctica

(3/n)

...not all the #ice will return.👈

“The impacts of #Antarctic #SeaIce staying low for over twenty years would be profound, including on local and global weather,” #LouiseSime, a co-author on the #BAS [#BritishAntarcticSurvey] study, said in a statement."

"👉The #ThwaitesGlacier in #WestAntarctica — nicknamed the “#DoomsdayGlacier” because its collapse could cause catastrophic sea level rise👈 — is ...

"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

So, since I need a break from marking coursework, and I just saw a #FridayFieldworkPhoto from Antarctica, here's one from up north. The icebreaker Polarstern on the day it first moored to its ice floe at the start of the year-long #MOSAiC field campaign, on Oct 5 2019.
#Arctic #seaice

So, since I need a break from marking coursework, and I just saw a #FridayFieldworkPhoto from Antarctica, here's one from up north. The icebreaker Polarstern on the day it first moored to its ice floe at the start of the year-long #MOSAiC field campaign, on Oct 5 2019.
#Arctic #seaice

So, since I need a break from marking coursework, and I just saw a #FridayFieldworkPhoto from Antarctica, here's one from up north. The icebreaker Polarstern on the day it first moored to its ice floe at the start of the year-long #MOSAiC field campaign, on Oct 5 2019.
#Arctic #seaice

So, since I need a break from marking coursework, and I just saw a #FridayFieldworkPhoto from Antarctica, here's one from up north. The icebreaker Polarstern on the day it first moored to its ice floe at the start of the year-long #MOSAiC field campaign, on Oct 5 2019.
#Arctic #seaice

Time for another #FridayFieldworkPhoto from #InglefieldBredning #Greenland from June 2021.

In the field, everyone lends a hand: Here we are hauling up the mooring that my #DMIdk colleague #SteffenOlsen leaves out every year to measure ocean temperature, salinity etc through the winter using #SeaIce as a #science platform.
The red buoy marks the position, the water here is 3-500m deep so pulling it up from the bottom takes some time + muscle power.
#FieldPhotoFriday #FridayFieldPhoto

Time for another #FridayFieldworkPhoto from #InglefieldBredning #Greenland from June 2021.

In the field, everyone lends a hand: Here we are hauling up the mooring that my #DMIdk colleague #SteffenOlsen leaves out every year to measure ocean temperature, salinity etc through the winter using #SeaIce as a #science platform.
The red buoy marks the position, the water here is 3-500m deep so pulling it up from the bottom takes some time + muscle power.
#FieldPhotoFriday #FridayFieldPhoto

Time for another #FridayFieldworkPhoto from #InglefieldBredning #Greenland from June 2021.

In the field, everyone lends a hand: Here we are hauling up the mooring that my #DMIdk colleague #SteffenOlsen leaves out every year to measure ocean temperature, salinity etc through the winter using #SeaIce as a #science platform.
The red buoy marks the position, the water here is 3-500m deep so pulling it up from the bottom takes some time + muscle power.
#FieldPhotoFriday #FridayFieldPhoto

Time for another #FridayFieldworkPhoto from #InglefieldBredning #Greenland from June 2021.

In the field, everyone lends a hand: Here we are hauling up the mooring that my #DMIdk colleague #SteffenOlsen leaves out every year to measure ocean temperature, salinity etc through the winter using #SeaIce as a #science platform.
The red buoy marks the position, the water here is 3-500m deep so pulling it up from the bottom takes some time + muscle power.
#FieldPhotoFriday #FridayFieldPhoto

Time for another #FridayFieldworkPhoto from #InglefieldBredning #Greenland from June 2021.

In the field, everyone lends a hand: Here we are hauling up the mooring that my #DMIdk colleague #SteffenOlsen leaves out every year to measure ocean temperature, salinity etc through the winter using #SeaIce as a #science platform.
The red buoy marks the position, the water here is 3-500m deep so pulling it up from the bottom takes some time + muscle power.
#FieldPhotoFriday #FridayFieldPhoto

Friday means time for #FieldPhotoFriday (or if you prefer #FridayFieldworkPhoto #FridayFieldPhoto)

These were some of the first #IceFlowers I ever saw on #SeaIce this spring. Made me realise there was more going on in that part of the #Cryosphere than I'd imagined and I should pay it more attention!

Astonishingly beautiful and fragile, they grow on #SeaIceleads by evaporation+ condensation. Fascinating #FluidDynamics and surprisingly #salty tasting!

Friday means time for #FieldPhotoFriday (or if you prefer #FridayFieldworkPhoto #FridayFieldPhoto)

These were some of the first #IceFlowers I ever saw on #SeaIce this spring. Made me realise there was more going on in that part of the #Cryosphere than I'd imagined and I should pay it more attention!

Astonishingly beautiful and fragile, they grow on #SeaIceleads by evaporation+ condensation. Fascinating #FluidDynamics and surprisingly #salty tasting!

Friday means time for #FieldPhotoFriday (or if you prefer #FridayFieldworkPhoto #FridayFieldPhoto)

These were some of the first #IceFlowers I ever saw on #SeaIce this spring. Made me realise there was more going on in that part of the #Cryosphere than I'd imagined and I should pay it more attention!

Astonishingly beautiful and fragile, they grow on #SeaIceleads by evaporation+ condensation. Fascinating #FluidDynamics and surprisingly #salty tasting!

Friday means time for #FieldPhotoFriday (or if you prefer #FridayFieldworkPhoto #FridayFieldPhoto)

These were some of the first #IceFlowers I ever saw on #SeaIce this spring. Made me realise there was more going on in that part of the #Cryosphere than I'd imagined and I should pay it more attention!

Astonishingly beautiful and fragile, they grow on #SeaIceleads by evaporation+ condensation. Fascinating #FluidDynamics and surprisingly #salty tasting!

Friday means time for #FieldPhotoFriday (or if you prefer #FridayFieldworkPhoto #FridayFieldPhoto)

These were some of the first #IceFlowers I ever saw on #SeaIce this spring. Made me realise there was more going on in that part of the #Cryosphere than I'd imagined and I should pay it more attention!

Astonishingly beautiful and fragile, they grow on #SeaIceleads by evaporation+ condensation. Fascinating #FluidDynamics and surprisingly #salty tasting!