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Sökning: WFRF:(David McGuire A.) > BAWLD-CH4 :

  • Kuhn, McKenzie A.Univ Alberta, Canada (författare)

BAWLD-CH4 : a comprehensive dataset of methane fluxes from boreal and arctic ecosystems

  • Artikel/kapitelEngelska2021

Förlag, utgivningsår, omfång ...

  • 2021-11-05
  • Copernicus Gesellschaft MBH,2021
  • electronicrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:liu-181192
  • https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-181192URI
  • https://doi.org/10.5194/essd-13-5151-2021DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-200117URI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • Funding Agencies|Vanier Canada Graduate Scholarship; W. Garfield Weston Foundation; Campus Alberta Innovates Program; National Science and Engineering Research Council of Canada (NSERC)Natural Sciences and Engineering Research Council of Canada (NSERC) [RGPIN-2016-04688]; US National Aeronautics and Space AdministrationNational Aeronautics & Space Administration (NASA) [NNX17AK10G]; US Department of EnergyUnited States Department of Energy (DOE) [DE-SC0016440]; H2020 ERC [725546]; Swedish Research Council VRSwedish Research Council [2016-04829]; FORMASSwedish Research Council Formas [2018-01794]
  • Methane (CH4) emissions from the boreal and arctic region are globally significant and highly sensitive to climate change. There is currently a wide range in estimates of high-latitude annual CH4 fluxes, where estimates based on land cover inventories and empirical CH4 flux data or process models (bottom-up approaches) generally are greater than atmospheric inversions (top-down approaches). A limitation of bottom-up approaches has been the lack of harmonization between inventories of site-level CH4 flux data and the land cover classes present in high-latitude spatial datasets. Here we present a comprehensive dataset of small-scale, surface CH4 flux data from 540 terrestrial sites (wetland and non-wetland) and 1247 aquatic sites (lakes and ponds), compiled from 189 studies. The Boreal-Arctic Wetland and Lake Methane Dataset (BAWLD-CH4) was constructed in parallel with a compatible land cover dataset, sharing the same land cover classes to enable refined bottom-up assessments. BAWLD-CH4 includes information on site-level CH4 fluxes but also on study design (measurement method, timing, and frequency) and site characteristics (vegetation, climate, hydrology, soil, and sediment types, permafrost conditions, lake size and depth, and our determination of land cover class). The different land cover classes had distinct CH4 fluxes, resulting from definitions that were either based on or co-varied with key environmental controls. Fluxes of CH4 from terrestrial ecosystems were primarily influenced by water table position, soil temperature, and vegetation composition, while CH4 fluxes from aquatic ecosystems were primarily influenced by water temperature, lake size, and lake genesis. Models could explain more of the between-site variability in CH4 fluxes for terrestrial than aquatic ecosystems, likely due to both less precise assessments of lake CH4 fluxes and fewer consistently reported lake site characteristics. Analysis of BAWLD-CH4 identified both land cover classes and regions within the boreal and arctic domain, where future studies should be focused, alongside methodological approaches. Overall, BAWLD-CH4 provides a comprehensive dataset of CH4 emissions from high-latitude ecosystems that are useful for identifying research opportunities, for comparison against new field data, and model parameterization or validation.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Varner, Ruth K.Stockholms universitet,Institutionen för naturgeografi,University of New Hampshire, USA,Univ New Hampshire, NH 03824 USA; Univ New Hampshire, NH 03824 USA(Swepub:su)ruva6714 (författare)
  • Bastviken, DavidLinköpings universitet,Tema Miljöförändring,Filosofiska fakulteten,Stockholm Univ, Sweden(Swepub:liu)davba48 (författare)
  • Crill, PatrickStockholms universitet,Institutionen för geologiska vetenskaper,Stockholm Univ, Sweden; Bolin Ctr Climate Res, Sweden(Swepub:su)pcril (författare)
  • MacIntyre, SallyUniv Calif Santa Barbara, CA 93106 USA (författare)
  • Turetsky, MerrittUniv Colorado Boulder, CO USA (författare)
  • Walter Anthony, KateyUniv Alaska Fairbanks, AK 99775 USA (författare)
  • McGuire, Anthony D.Univ Alaska Fairbanks, AK 99775 USA (författare)
  • Olefeldt, DavidUniv Alberta, Canada (författare)
  • Univ Alberta, CanadaInstitutionen för naturgeografi (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Earth System Science Data: Copernicus Gesellschaft MBH13:11, s. 5151-51891866-35081866-3516

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