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Burned area and carbon emissions across northwestern boreal North America from 2001-2019

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dc.creatorPotter, Stefanospa
dc.creatorCooperdock, Solspa
dc.creatorVeraverbeke, Sanderspa
dc.creatorWalker, Xanthespa
dc.creatorMack, Michelle C.spa
dc.creatorGoetz, Scott J.spa
dc.creatorBaltzer, Jenniferspa
dc.creatorBourgeau-Chavez, Lauraspa
dc.creatorBurrell, Ardenspa
dc.creatorDieleman, Catherinespa
dc.creatorFrench, Nancyspa
dc.creatorHantson, Stijnspa
dc.creatorHoy, Elizabeth E.spa
dc.creatorJenkins, Lizaspa
dc.creatorJill F, Johnstonespa
dc.creatorKane, Evan S.spa
dc.creatorEvan S. Evan S. Evan S. . Natalispa
dc.creatorJames T. Randersonspa
dc.creatorMerritt R. Turetskyspa
dc.creatorEllen Whitmanspa
dc.creatorElizabeth Wigginsspa
dc.creatorand Brendan M. Rogersspa
dc.date.accessioned2024-01-31T18:21:06Z
dc.date.available2024-01-31T18:21:06Z
dc.date.created2023-07-14spa
dc.date.issued2023spa
dc.descriptionFire is the dominant disturbance agent in Alaskan and Canadian boreal ecosystems and releases large amounts of carbon into the atmosphere. Burned area and carbon emissions have been increasing with climate change, which have the potential to alter the carbon balance and shift the region from a historic sink to a source. It is therefore critically important to track the spatiotemporal changes in burned area and fire carbon emissions over time. Here we developed a new burned area detection algorithm between 2001–2019 across Alaska and Canada at 500 meters (m) resolution that utilizes finer-scale 30 m Landsat imagery to account for land cover unsuitable for burning. This method strictly balances omission and commission errors at 500 m to derive accurate landscape- and regional-scale burned area estimates. Using this new burned area product, we developed statistical models to predict burn depth and carbon combustion for the same period within the NASA Arctic-Boreal Vulnerability Experiment (ABoVE) core and extended domain. Statistical models were constrained using a database of field observations across the domain and were related to a variety of response variables including remotely-sensed indicators of fire severity, fire weather indices, local climate, soils, and topographic indicators. The burn depth and aboveground combustion models performed best, with poorer performance for belowground combustion. We estimate 2.37 million hectares (Mha) burned annually between 2001–2019 over the ABoVE domain (2.87 Mha across all of Alaska and Canada), emitting 79.3 +/- 27.96 (+/- 1 standard deviation) Teragrams of carbon (C) per year, with a mean combustion rate of 3.13 +/- 1.17 kilograms C m-2. Mean combustion and burn depth displayed a general gradient of higher severity in the northwestern portion of the domain to lower severity in the south and east. We also found larger fire years and later season burning were generally associated with greater mean combustion. Our estimates are generally consistent with previous efforts to quantify burned area, fire carbon emissions, and their drivers in regions within boreal North America; however, we generally estimate higher burned area and carbon emissions due to our use of Landsat imagery, greater availability of field observations, and improvements in modeling. The burned area and combustion data sets described here (the ABoVE Fire Emissions Database, or ABoVE-FED) can be used for local to continental-scale applications of boreal fire science.spa
dc.format.mimetypeapplication/pdfspa
dc.identifier.doihttp://doi.org/10.5194/bg-20-2785-2023spa
dc.identifier.issn1726-4170spa
dc.identifier.urihttps://repository.urosario.edu.co/handle/10336/42097
dc.language.isoengspa
dc.publisherUniversidad del Rosariospa
dc.relation.urihttps://egusphere.copernicus.org/preprints/2022/egusphere-2022-364/spa
dc.rightsAttribution-NonCommercial-ShareAlike 4.0 Internationalspa
dc.rights.accesRightsinfo:eu-repo/semantics/openAccessspa
dc.rights.accesoAbierto (Texto Completo)spa
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/spa
dc.sourceBiogeosciencesspa
dc.source.instnameinstname:Universidad del Rosariospa
dc.source.reponamereponame:Repositorio Institucional EdocURspa
dc.subjectCarbon Emissionsspa
dc.subjectBoreal ecosystemsspa
dc.subjectlimate changespa
dc.titleBurned area and carbon emissions across northwestern boreal North America from 2001-2019spa
dc.typearticlespa
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersionspa
dc.type.spaArtículospa
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