#arcticresearch — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #arcticresearch, aggregated by home.social.
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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 -
What happens if the snow melts a month earlier than expected? Microbiologist Noemí Segura Solé witnessed the consequences first-hand. The #thaw meant that her fieldwork in Longyearbyen, #Svalbard was cancelled. https://www.ru.nl/en/research/research-news/how-early-spring-thaw-disrupts-arctic-ecosystems-and-a-society #ecology #microbiology #arcticresearch
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How do we study ecosystems under the ice? Researchers in the TRIPLE-nanoAUV 2 project, led by MARUM, are testing new tech in the Arctic Circle to unlock secrets beneath the ice. 🧊🔬
Read more ➡️ https://www.marum.de/en/Testing-under-the-ice.html
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🌍✨ How can traditional knowledge & modern tech work together in Sámi contexts? 🤝
At #Munin2025, Per Anton Øverseth Olsen & Vegard Nergård (UiT) present “Approaches for data management, collaboration & co-ownership in Sámi engineering science.” ❄️💡
🔗 https://doi.org/10.7557/5.8350
#SámiKnowledge #ArcticResearch #OpenScience #IndigenousResearch
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They brought the samples back to the lab, extracted diatoms from the ice cores, recreated their environments in a petri dish containing a thin layer of frozen freshwater, a layer of very cold saltwater
“You can see the diatoms actually gliding, like they are skating on the ice,” said lead author and Stanford postdoctoral scholar Qing Zhang, who collected the samples during an #Arcticresearch expedition to the #StanfordReport
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International Polar Year (Earth sciences 🌍)
The International Polar Years are collaborative, international efforts with intensive research focus on the polar regions. Karl Weyprecht, an Austro-Hungarian naval officer, motivated the endeavor in 1875, but died before it first occurred in 1882–1883. Fifty years later a second IPY took place. The International Geophy...
https://en.wikipedia.org/wiki/International_Polar_Year
#InternationalPolarYear #EarthSciences #ArcticResearch #AntarcticResearch
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Job alert: PhD position Microbiology of Arctic Freshwater Lakes 🏞️ 🦠
Are you or is someone you know looking for a PhD position in microbiology? Then go to our website and apply by 15 April 2025! https://www.ru.nl/en/working-at/job-opportunities/phd-position-microbiology-of-arctic-freshwater-lakes
#phdjob #academicjobs #researchjobs #vacancy #microbiology #arcticresearch -
Bureau of Oceans and International Environmental and Scientific Affairs (Oceanography 🌊)
The Bureau of Oceans and International Environmental and Scientific Affairs is a functional bureau within the United States Department of State. The Assistant Secretary of Stat...
#BureauOfOceansAndInternationalEnvironmentalAndScientificAffairs #LawOfTheSea #Oceanography #ArcticResearch #FisheriesAgencies
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Today we have a challenge for you! This #Sentinel1 🛰️ timeseries of a region in the Baffin Bay reveals an Arctic natural oil seep amongst look-alikes and #SeaIce ❄️ 🌊 ⚫ Can you spot the oil-slicks in the video? #ArcticResearch #SAR
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Book launch: "The Paradox of Svalbard: Climate Change and Globalisation in the Arctic". Meet the author Zdenka Sokolíčková!
5 November, 1730-1900, Gustave Tuck Lecture Theatre, University College London, London, UK.
https://www.eventbrite.com/e/book-launch-the-paradox-of-svalbard-tickets-728848173507#Svalbard #Spitsbergen #Norway #Norge #ClimateChange #Globalisation #Arctic #Polar #ArcticResearch #PolarResearch #ArcticScience #PolarScience
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Nordic NRENs #FUNET, @sunet & #Sikt continue the progress towards "Terabit to the Tundra".
Today the optical networks of Sikt and FUNET were interconnected at Skibotn (70' north).
Next step: deliver 4 Tbps network to #EISCAT_3D, a next-generation incoherent scatter radar system, will significantly improve its data handling and transfer capabilities, benefiting scientists studying the Earth's upper atmosphere and near-Earth space in the region.. 🌍🔬 #Connectivity #Science #ArcticResearch #NORDUnet -
it has been so lovely chatting with some of you tonight! feeling pretty optimistic about the community over here on mastodon :)
how about a #FieldWork pic before I get back to grading for the night? check out these #PolarBear prints from nearby our field #camp this past summer in the #NorthwestTerritories!! 🐾 so lucky we didn't have a run-in with these big boys!
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I've been following #AviajaLyberthHauptmann for a while but we're never met. Great to see her presenting her work on #microbiology and #fermentation in #Greenland and #Greenlandic #TraditionalFood.
Also part of a #CarlsbergFoundation #science project with collaborators across #indigenous and #feminist studies.
#HindsgavlMeeting is gloriously #multidisciplinary which is one of its strengths. #ForumForArktiskForskning #ArcticResearch