Modelling and measurement of carbon emissions under Arctic snow ...

• Main Authors: Rutter, Nick, Dutch, Victoria, Mann, Paul, Wake, Leanne, Derksen, Chris, Walker, Branden, Hould Gosselin, Gabriel, Sonnentag, Oliver, Roy, Alexandre, Mavrovic, Alex, Essery, Richard, Voigt, Carolina, Marsh, Phillip, Boike, Julia
• Format: Conference Object
• Language: unknown
• Published: GFZ German Research Centre for Geosciences 2023
• Subjects: Arctic; Canada; Valley Creek; Trail Valley Creek
• Online Access: https://dx.doi.org/10.57757/iugg23-2475; https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018277

<!--!introduction!--> Arctic carbon dioxide emissions during the winter months are frequently omitted from global carbon budgets, due to prior assumptions that their contribution is largely insignificant compared to other sources and seasons. This paradigm has recently been challenged, amid a growing awareness of the impact snow-ecosystem interactions have on respiration from high-latitude soils and overall carbon budgets. Through field measurements at Trail Valley Creek, NWT, Canada, and simulations using the Community Land Model 5.0, here we: <ol><li>consider how the representation of snow thermal conductivity in a Terrestrial Biosphere Model impacts simulated near-surface soil temperatures and net ecosystem exchange,</li><li>report on new low-cost in-situ measurement techniques that aim to quantify carbon dioxide concentrations and fluxes within Arctic snowpacks.</li></ol> We anticipate new measurement techniques will help evaluate rates of production of carbon ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ...