#beaufortsea — Public Fediverse posts

Challenges In The Use Of Local Data For Regional Scale Mapping Of C And N Stocks In The Continuous Permafrost Zone At The Yukon Coastal Plain | Heatwave Risks To Tipping Point Of Permafrost
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https://doi.org/10.5194/soil-12-113-2026 <-- shared paper
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https://doi.org/10.1038/s41558-026-02603-2 <-- shared paper
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https://www.theguardian.com/environment/2026/aug/20/tipping-points-heatwaves-wildfires-permafrost-climate-crisis <-- shared media article
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https://www.cbc.ca/news/canada/north/permafrost-slumps-herschel-island-qikiqtaruk-yukon-9.7168780 <-- shared media article
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[putting together two different ‘sorts’/focuses of research/reporting, but…]
H/T @gustaf Hugelius | Professor at Stockholm University
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“Permafrost soils are particularly vulnerable to climate change. To assess and improve estimations of carbon (C) and nitrogen (N) budgets it is necessary to accurately map soil carbon and nitrogen in the permafrost region. In particular, soil organic carbon (SOC) stocks have been predicted and mapped by many studies from local to pan-Arctic scales. Several studies have been carried out at the Canadian Beaufort Sea coast, though no regional maps of terrestrial carbon stocks based on spatial modelling has been conducted yet. This study combines available field data from the Canadian Yukon coastal plain and uses it to map regional SOC and N stocks using the machine learning algorithm random forest and environmental variables based on remote sensing data. [The authors] developed models using the data for the entire region and separate models for the coastal mainland area and Qikiqtaruk Herschel Island. Each model was used to map SOC and N stocks for its respective area. [They] assessed the performance of the different random forest models by using crossvalidation. [They] further assessed model results using the Area of Applicability (AOA) method and the quantile regression forest approach, comparing the results and discussing their implications within the context of both methods. [They] explore[d] local differences in soil properties and how soil data distribution across the region affects the accuracy of the predictions of SOC and N stocks..."
#permafrost #soils #geology #climatechange #temperature #thawing #melting #emissions #CO2 #methane #carbon #nitrogen #GIS #spatial #mapping #Qikiqtaruk #HerschelIsland #Yukon #Canada #soilorganiccarbon #SOC #arctic #cryosphere #BeaufortSea #coast #coastal #machinelearning #model #modeling #remotesensing #earthobservation #carbonstocks #island #mainland #spatialanalysis #scale

Banks Island is one of the larger members of the #ArcticArchipelago. Situated in the #InuvikRegion, and part of the #InuvialuitSettlementRegion, of the #NorthwestTerritories, it is separated from #VictoriaIsland to its east by the #PrinceOfWalesStrait and from the mainland by #AmundsenGulf to its south. The #BeaufortSea lies to its west, and to its northeast #MClureStrait separates the island from #PrincePatrickIsland and #MelvilleIsland.

U.S., Canadian icebreakers conduct operation, rendezvous en route to Arctic Ocean
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https://alaska-native-news.com/u-s-canadian-icebreakers-conduct-operation-rendezvous-en-route-to-arctic-ocean/69231/
#coastguard #arctic #beaufortsea #rendezvous #canada #alaska

The Fluvial Geomorphology Equivalent Of ‘Ontogeny Recapitulates Phylogeny’?
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https://www.usgs.gov/3d-elevation-program <-- USGS’s 3DEP’s open data for elevation
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This is a ‘quick and dirty’ visualisation that I made the other day with 3DEP iFSAR data to get a better sense of the fluvial geomorphology up in this area of NE Alaska near Kaktovik/Gordon, it is amazing what pops...
Lay over some hydrology vectors, some of the underlying geology boundaries, etc - and the landforms become much easier to understand in terms of origin and development - the geomorphic/hydrologic/erosional/geologic/vegetative/etc equivalent of biology's “ontogeny recapitulates phylogeny”?
#GIS #spatial #mapping #Alaska #USA #3DEP #opendata #elevation #iFSAR #remotesensing #radar #visualisation #fluvial #hydrology #geology #erosion #geomorphology #ontogeny #phylogeny #landforms #origin #development #vegetation #appliedscience #USGS #arctic #arcticocean #beaufortsea
@USGS