Evgenii Salganik
@salganik.bsky.social
ice researcher and architecture photographer
Alfred Wegener Institute @awi.de
Alfred Wegener Institute @awi.de
A new thesis about the inclusion of air bubbles into the mushy layer model of sea ice by Joseph Fishlock from the University of Oxford @ox.ac.uk: ora.ox.ac.uk/objects/uuid...
September 29, 2025 at 9:41 AM
A new thesis about the inclusion of air bubbles into the mushy layer model of sea ice by Joseph Fishlock from the University of Oxford @ox.ac.uk: ora.ox.ac.uk/objects/uuid...
Back from the CONTRASTS expedition (July–Sept)!
We studied 3 types of Arctic sea ice, revisiting each site 4 times.
I wrote a short overview here: en.wikipedia.org/wiki/CONTRAS...
We studied 3 types of Arctic sea ice, revisiting each site 4 times.
I wrote a short overview here: en.wikipedia.org/wiki/CONTRAS...
CONTRASTS Expedition - Wikipedia
en.wikipedia.org
September 12, 2025 at 4:22 PM
Back from the CONTRASTS expedition (July–Sept)!
We studied 3 types of Arctic sea ice, revisiting each site 4 times.
I wrote a short overview here: en.wikipedia.org/wiki/CONTRAS...
We studied 3 types of Arctic sea ice, revisiting each site 4 times.
I wrote a short overview here: en.wikipedia.org/wiki/CONTRAS...
Reposted by Evgenii Salganik
Unique concept for observing Arctic sea ice successfully implemented: AWI scientists were able to study different types of sea ice in parallel during the Polarstern expedition “CONTRASTS.” 🧊
www.awi.de/en/about-us/...
Photo: Evgenii Salganik
www.awi.de/en/about-us/...
Photo: Evgenii Salganik
September 8, 2025 at 3:03 PM
Unique concept for observing Arctic sea ice successfully implemented: AWI scientists were able to study different types of sea ice in parallel during the Polarstern expedition “CONTRASTS.” 🧊
www.awi.de/en/about-us/...
Photo: Evgenii Salganik
www.awi.de/en/about-us/...
Photo: Evgenii Salganik
Great to see a data paper from the Nansen Legacy cruises (2018–2022), led by Dmitry Divine (@oceanseaicenpi.bsky.social), including sea ice density measurements that clearly show strong seasonality: doi.org/10.1002/gdj3.70001
June 28, 2025 at 12:02 PM
Great to see a data paper from the Nansen Legacy cruises (2018–2022), led by Dmitry Divine (@oceanseaicenpi.bsky.social), including sea ice density measurements that clearly show strong seasonality: doi.org/10.1002/gdj3.70001
Our new data paper about under-ice observations from a remotely operated vehicle (ROV) during MOSAiC led by Philipp Anhaus from @awi.de: www.nature.com/articles/s41...
June 6, 2025 at 8:49 AM
Our new data paper about under-ice observations from a remotely operated vehicle (ROV) during MOSAiC led by Philipp Anhaus from @awi.de: www.nature.com/articles/s41...
A new study led by Niels Fuchs uses hydrological models to predict the locations of melt ponds: doi.org/10.1029/2025GL115033
May 8, 2025 at 8:06 PM
A new study led by Niels Fuchs uses hydrological models to predict the locations of melt ponds: doi.org/10.1029/2025GL115033
Reposted by Evgenii Salganik
Our new study is out:
The Arctic Beaufort Gyre is projected to weaken or vanish in most CMIP6 models under future climate change.
The gyre would thus stop storing freshwater in its centre, with possibly large impacts on the Arctic and beyond.
Read: agupubs.onlinelibrary.wiley.com/doi/full/10....
The Arctic Beaufort Gyre is projected to weaken or vanish in most CMIP6 models under future climate change.
The gyre would thus stop storing freshwater in its centre, with possibly large impacts on the Arctic and beyond.
Read: agupubs.onlinelibrary.wiley.com/doi/full/10....
The Arctic Beaufort Gyre in CMIP6 Models: Present and Future
CMIP6 models generally simulate a too strong, large, and northward-extending Beaufort Gyre (BG) during the historical period Among the least unrealistic models, most simulations project a decline...
agupubs.onlinelibrary.wiley.com
March 31, 2025 at 2:48 PM
Our new study is out:
The Arctic Beaufort Gyre is projected to weaken or vanish in most CMIP6 models under future climate change.
The gyre would thus stop storing freshwater in its centre, with possibly large impacts on the Arctic and beyond.
Read: agupubs.onlinelibrary.wiley.com/doi/full/10....
The Arctic Beaufort Gyre is projected to weaken or vanish in most CMIP6 models under future climate change.
The gyre would thus stop storing freshwater in its centre, with possibly large impacts on the Arctic and beyond.
Read: agupubs.onlinelibrary.wiley.com/doi/full/10....
Ice Mass Balance (IMB) buoys are unique in their ability to distinguish between ice surface and bottom melt, which relates to the way solar energy is distributed. Models still do a poor job of capturing this. You can find the updated Wiki article here: en.wikipedia.org/wiki/Ice_mass_balance_buoy
March 29, 2025 at 10:16 AM
Ice Mass Balance (IMB) buoys are unique in their ability to distinguish between ice surface and bottom melt, which relates to the way solar energy is distributed. Models still do a poor job of capturing this. You can find the updated Wiki article here: en.wikipedia.org/wiki/Ice_mass_balance_buoy
If you are into Arctic sea ice thermodynamics, here is our new dataset of 82 CRREL ice mass balance buoys deployed in 1997–2024 with estimates of snow and ice thickness and their interface evolution: doi.org/10.5281/zenodo.15096485
March 28, 2025 at 8:30 AM
If you are into Arctic sea ice thermodynamics, here is our new dataset of 82 CRREL ice mass balance buoys deployed in 1997–2024 with estimates of snow and ice thickness and their interface evolution: doi.org/10.5281/zenodo.15096485
If you are into modeling of sea ice physical properties (salinity, brine volume, or density), we combined coring datasets to have a seasonal evolution for first- and second-year level ice: doi.org/10.5281/zeno...
The coring datasets have many more parameters, including isotopes and nutrients.
The coring datasets have many more parameters, including isotopes and nutrients.
March 21, 2025 at 10:47 AM
If you are into modeling of sea ice physical properties (salinity, brine volume, or density), we combined coring datasets to have a seasonal evolution for first- and second-year level ice: doi.org/10.5281/zeno...
The coring datasets have many more parameters, including isotopes and nutrients.
The coring datasets have many more parameters, including isotopes and nutrients.
In summer we typically track sea ice melt, assuming its height above the waterline decreases. In our new study, we show that sea ice freeboard may increase during the advanced melt in June and July due to the rapid decrease of ice density. Read more: doi.org/10.5194/tc-19-1259-2025
March 18, 2025 at 9:05 AM
In summer we typically track sea ice melt, assuming its height above the waterline decreases. In our new study, we show that sea ice freeboard may increase during the advanced melt in June and July due to the rapid decrease of ice density. Read more: doi.org/10.5194/tc-19-1259-2025
Last day at the Norwegian Polar Institute. Thanks for the good memories.
February 28, 2025 at 7:51 AM
Last day at the Norwegian Polar Institute. Thanks for the good memories.
Yesterday, you showed Zack's beautiful work to your colleague; today, he no longer works at NOAA. Huge support. We all live in an evolving dystopia.
Last Tuesday, I was set to give a talk on 'climate change in the Northeast' at a retirement home but had to cancel due to hourly job threats.
After nearly two weeks of overwhelming uncertainty, today it happened. I was fired from my dream of working at NOAA. I'm so sorry to everyone also affected.
After nearly two weeks of overwhelming uncertainty, today it happened. I was fired from my dream of working at NOAA. I'm so sorry to everyone also affected.
February 28, 2025 at 4:34 AM
Yesterday, you showed Zack's beautiful work to your colleague; today, he no longer works at NOAA. Huge support. We all live in an evolving dystopia.
Shocking. It is hard to overestimate the importance of all the wonderful research and observations from NOAA @climate.noaa.gov and other US-based agencies. Huge support to Zack and others who are affected.
I really cannot believe my childhood career dream might end like this. Feeling so small and lost.
February 19, 2025 at 4:34 PM
Shocking. It is hard to overestimate the importance of all the wonderful research and observations from NOAA @climate.noaa.gov and other US-based agencies. Huge support to Zack and others who are affected.
Reposted by Evgenii Salganik
Fate of #Arctic sea ice melt | In a new study led by @madm-ice.bsky.social, we followed the #MOSAiC ice floe and calculated the budget of freshwater sources and sinks from snow and ice melt in summer 2020. Read more: doi.org/10.5194/tc-19-619-2025
February 14, 2025 at 10:57 AM
Fate of #Arctic sea ice melt | In a new study led by @madm-ice.bsky.social, we followed the #MOSAiC ice floe and calculated the budget of freshwater sources and sinks from snow and ice melt in summer 2020. Read more: doi.org/10.5194/tc-19-619-2025
Impressive airborne measurements of ice ridge spacing led by Thomas Krumpen:
Nature Climate Change January issue is now online
Content includes
💻 Internet image search & climate views
🌀 cyclone risk to ecosystems
📉 the Global Stocktake technical dialogue
🦠 Microbial carbon use efficiency in soil models
🧊 smoother Arctic sea ice
& much more
www.nature.com/nclimate/vol...
Content includes
💻 Internet image search & climate views
🌀 cyclone risk to ecosystems
📉 the Global Stocktake technical dialogue
🦠 Microbial carbon use efficiency in soil models
🧊 smoother Arctic sea ice
& much more
www.nature.com/nclimate/vol...
February 4, 2025 at 10:28 PM
Impressive airborne measurements of ice ridge spacing led by Thomas Krumpen:
Academic journals may need stricter guidelines for introductions. Broad overviews with ambiguous claims and irrelevant references are way too common. Worse, unjustified citations of colleagues and co-authors further devalue citations, as if they can get less valuable than now.
January 24, 2025 at 11:14 PM
Academic journals may need stricter guidelines for introductions. Broad overviews with ambiguous claims and irrelevant references are way too common. Worse, unjustified citations of colleagues and co-authors further devalue citations, as if they can get less valuable than now.
If only they could have asked the author. The sea-ice density part is not much better. Half-based on a 1978 study published in Russian and not publicly available.
New paper out on satellite-based snow depth estimates.
doi.org/10.1038/s415...
As flattered as I am to have an equation named after me, I would have preferred the authors to have cited the paper in which I wrote this equation (rather than the URL of some random CCI report).
doi.org/10.1038/s415...
As flattered as I am to have an equation named after me, I would have preferred the authors to have cited the paper in which I wrote this equation (rather than the URL of some random CCI report).
January 20, 2025 at 5:14 PM
If only they could have asked the author. The sea-ice density part is not much better. Half-based on a 1978 study published in Russian and not publicly available.
The only problem with Fabio's color maps is that they are so beautiful it is hard to choose one.
Scientific colour maps 8.0
· Perceptually uniform
· Perceptually ordered
· Colour-blind friendly
· Readable as B&W print
· Widely compatible
· Versioned & citable
fabiocrameri.ch/colourmaps
#useBatlow #Dataviz #SciArt #EduSky #OpenSource
1/n
· Perceptually uniform
· Perceptually ordered
· Colour-blind friendly
· Readable as B&W print
· Widely compatible
· Versioned & citable
fabiocrameri.ch/colourmaps
#useBatlow #Dataviz #SciArt #EduSky #OpenSource
1/n
January 17, 2025 at 2:22 PM
The only problem with Fabio's color maps is that they are so beautiful it is hard to choose one.
Our sea ice and ocean sections of Norwegian Polar Institute on Bluesky:
Hello Bluesky!
We are scientists from the #SeaIce and #Oceanography sections within the Research Department at the Norwegian Polar Institute, located in Tromsø, Norway. Follow us here on @bsky.app for updates and insights into polar #research in the #Arctic and #Antarctic carried out by us.
We are scientists from the #SeaIce and #Oceanography sections within the Research Department at the Norwegian Polar Institute, located in Tromsø, Norway. Follow us here on @bsky.app for updates and insights into polar #research in the #Arctic and #Antarctic carried out by us.
January 13, 2025 at 6:54 PM
Our sea ice and ocean sections of Norwegian Polar Institute on Bluesky:
Quote from WMO sea ice nomenclature: "Ice ridge concentration: Concentration (aerial coverage) of hummocked ice of all kinds in an ice area in tenths." Should it be areal instead of aerial? @wmo-global.bsky.social, we can do better.
January 13, 2025 at 12:33 PM
Quote from WMO sea ice nomenclature: "Ice ridge concentration: Concentration (aerial coverage) of hummocked ice of all kinds in an ice area in tenths." Should it be areal instead of aerial? @wmo-global.bsky.social, we can do better.
A great new study led by Thomas Krumpen about the decrease of ridge density based on airborne observations since the 1990s:
Sea ice paper alert, congratulations to my colleagues!
Krumpen, T., von Albedyll, L., Bünger, H.J. et al. Smoother sea ice with fewer pressure ridges in a more dynamic Arctic. Nat. Clim. Chang. (2025). doi.org/10.1038/s415...
#Arctic #climate 🌊 🥼❄️
rdcu.be/d5rtv
Krumpen, T., von Albedyll, L., Bünger, H.J. et al. Smoother sea ice with fewer pressure ridges in a more dynamic Arctic. Nat. Clim. Chang. (2025). doi.org/10.1038/s415...
#Arctic #climate 🌊 🥼❄️
rdcu.be/d5rtv
Smoother sea ice with fewer pressure ridges in a more dynamic Arctic
Nature Climate Change - Pressure ridges, a characteristic feature of Arctic sea ice, play an important role in the ecosystem but pose challenges to shipping. Here the authors use aircraft...
rdcu.be
January 7, 2025 at 6:38 AM
A great new study led by Thomas Krumpen about the decrease of ridge density based on airborne observations since the 1990s:
Presenting our work on sea-ice ridge thermodynamics during winter and summer at @agu.org was a pleasure. You can check out our #AGU24 talk here: www.youtube.com/watch?v=gUFi...
Seasonal evolution of sea ice ridges presented at AGU24
YouTube video by Evgenii Salganik
www.youtube.com
December 16, 2024 at 2:22 PM
Presenting our work on sea-ice ridge thermodynamics during winter and summer at @agu.org was a pleasure. You can check out our #AGU24 talk here: www.youtube.com/watch?v=gUFi...
Our work with Odile Crabeck and Jack Landy about the rapid decrease of sea-ice density in summer leading to non-decreasing ice freeboard during 0.6 m ice thickness loss: doi.org/10.5194/egus...
September 10, 2024 at 9:03 AM
Our work with Odile Crabeck and Jack Landy about the rapid decrease of sea-ice density in summer leading to non-decreasing ice freeboard during 0.6 m ice thickness loss: doi.org/10.5194/egus...
The ecosystem work overview of the MOSAiC expedition led by Allison Fong is published at Elementa: Science of the Anthropocene: doi.org/10.1525/elem...
August 22, 2024 at 8:09 AM
The ecosystem work overview of the MOSAiC expedition led by Allison Fong is published at Elementa: Science of the Anthropocene: doi.org/10.1525/elem...