#lakeice — Public Fediverse posts

A Japanese shrine has recorded one lake's ice for 583 years, as a divination

https://jivx.com/omiwatari

Comments: https://news.ycombinator.com/item?id=49431988

#HackerNews #JapaneseShrine #LakeIce #583Years #Divination #Tradition #History

Mapping Snow On Northern Winter Roads - A Dual-Frequency Polarimetric Radar Approach For Snow Characterization Over Land, Lake And Sea Ice
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https://doi.org/10.5194/tc-20-4367-2026 <-- shared paper
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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…”
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“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

Intense Groundwater Flow Destabilizes Ice In North America's Great Lakes, Simulations Show
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https://phys.org/news/2025-09-intense-groundwater-destabilizes-ice-north.html <-- shared technical article
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https://doi.org/10.1029/2025WR040581 <-- shared paper
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"KEY POINTS:
• Groundwater inflow enhances winter lake ice thickness by stabilizing the water column and reducing vertical mixing
• Ice responses to groundwater are strongest in coastal zones due to higher flux and shallow bathymetry
• Including groundwater in coupled models improves understanding of ice formation and winter lake processes…”
#water #hydrology #groundwater #flux #flow #GreatLakes #USA #LakeMichigan #LakeHuron #ice #climatechange #model #modeling #shoreline #coast #lakeice #melt #hydrodynamic #spatialanalysis #spatiotemporal #thermal #stratification #winter #bathymetry #coupledmodels #processes

January Thaw. Melting lake ice. Scoville Reservoir, Wolcott, Connecticut. January 27, 2020, 4:44 PM.

#blue #ice #patterns #lake #lakeice #meltingice #nature #outdoors #hiking #Connecticut #winter #wintertime #thaw #January #Januarythaw

And that Mirror Lake ice is definitively out for the year! Screengrab below from the Ausable River Association camera livestream just now. https://www.ausableriver.org/watershed/lakes/mirror-lake/mirror-lake-livestream

We went from pretty complete ice cover on Tuesday to wet around the edges on Wednesday to patchy partial ice Thursday to no ice today. #Spring has come to the #Adirondacks and #LakeChamplainBasin.

#52LakeChamplain #LakePlacid #MirrorLake #IceOut #LakeIce

Views from the flight from #Yellowknife to #Kugluktuk and on to #CambridgeBay. From rocky Canadian Shield and #boreal forest to ice- and snow-covered landscapes in late May 2019. #cryosphere #Arctic #subarctic #SeaIce #LakeIce #fieldwork