Ramesh Glückler · @rglueckler
229 followers · 132 posts · Server fediscience.orgNew #research: Can we trace development stages and ecology of a #permafrost thaw lake throughout the Holocene? Using an innovative combination of sedimentary proxies (ancient #DNA, #diatoms, #XRF), @Iza_bai et al. show: Yes, we can!
Long-term evolution of Central #Yakutia's vital #alaas #thermokarst lakes is traced throughout past millennia. This may help understand future pathways of culturally important lake systems!
#edna #aDNA #newresearch #alas #siberia #sakha #thermokarst #alaas #Yakutia #xrf #diatoms #DNA #permafrost #research
· @anatole
9 followers · 18 posts · Server fediscience.org
#Yedoma is an organic-rich (about 2% carbon by mass) Pleistocene-age #permafrost with ice content of 50–90% by volume.
"The deposits formed due to a combination of aeolian, colluvial, nival, and alluvial deposition and simultaneous ground ice accumulation. [...] The substantial amount of ground ice in Yedoma makes it highly vulnerable to disturbances such as #thermokarst and thermo-erosion processes." https://www.sciencedirect.com/science/article/pii/S0012825217300508?via%3Dihub #climateChange #Siberia #Yukon #Alaska #zombie #Pandoravirus
#pandoravirus #zombie #alaska #yukon #siberia #climatechange #thermokarst #permafrost #yedoma
Ingmar Nitze · @i_nitze
88 followers · 68 posts · Server mapstodon.space
Some impressions from my first trip to #Alaska in 2015.
😀 🤩
Wildfires and thick smoke in the interior along the Dalton Highway.
#Thermokarst #lake dynamics (expansion + drainage) and #polygons on the North Slope.
#fieldworkfriday #alaska #thermokarst #lake #polygons
Oceanflynn · @Oceanflynn
5 followers · 23 posts · Server mastodon.social
#ArcticScienceJournal #CircumpolarNorth #BaikalAmur Mainline #BovanenkovoRailway #AlaskaCanada Highway #InuvikTuktoyatukHighway #AlaskaRailroad #HudsonBayRailway #BaffinIslandCanada proposed railway #thermokarst #permafrost #PermafrostSlump #RangiferTarandus #caribou #InuvialuitSettlementRegion
#alaskarailroad #hudsonbayrailway #baffinislandcanada #thermokarst #permafrost #permafrostslump #rangifertarandus #caribou #inuvialuitsettlementregion #circumpolarnorth #baikalamur #bovanenkovorailway #alaskacanada #inuviktuktoyatukhighway #arcticsciencejournal
O=C=O · @tuxom
1843 followers · 8902 posts · Server mastodon.social
Fast response of cold ice-rich permafrost in northeast #Siberia to a warming #climate
The ice- and organic-rich permafrost of the northeast Siberian Arctic lowlands has been projected to remain stable beyond 2100, even under pessimistic #ClimateWarming scenarios. However, the numerical models used for projections lack processes which induce widespread #landscape #change termed #thermokarst, precluding realistic simulation of #permafrost #thaw in such ice-rich terrain.
#siberia #change #climate #climatewarming #landscape #thermokarst #permafrost #thaw