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Sökning: L773:1748 9326 OR L773:1748 9326 > (2020-2024) > Responses of Arctic...

  • Akperov, MirseidA.M. Obukhov Institute of Atmospheric Physics, RAS (författare)

Responses of Arctic cyclones to biogeophysical feedbacks under future warming scenarios in a regional Earth system model

  • Artikel/kapitelEngelska2021

Förlag, utgivningsår, omfång ...

  • 2021-06-14
  • IOP Publishing,2021

Nummerbeteckningar

  • LIBRIS-ID:oai:lup.lub.lu.se:ee60ebd4-45dc-4036-a6f6-846304fd5ead
  • https://lup.lub.lu.se/record/ee60ebd4-45dc-4036-a6f6-846304fd5eadURI
  • https://doi.org/10.1088/1748-9326/ac0566DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

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

Anmärkningar

  • Arctic cyclones, as a prevalent feature in the coupled dynamics of the Arctic climate system, have large impacts on the atmospheric transport of heat and moisture and deformation and drifting of sea ice. Previous studies based on historical and future simulations with climate models suggest that Arctic cyclogenesis is affected by the Arctic amplification of global warming, for instance, a growing land-sea thermal contrast. We thus hypothesize that biogeophysical feedbacks (BF) over the land, here mainly referring to the albedo-induced warming in spring and evaporative cooling in summer, may have the potential to significantly change cyclone activity in the Arctic. Based on a regional Earth system model (RCA-GUESS) which couples a dynamic vegetation model and a regional atmospheric model and an algorithm of cyclone detection and tracking, this study assesses for the first time the impacts of BF on the characteristics of Arctic cyclones under three IPCC Representative Concentration Pathways scenarios (i.e. RCP2.6, RCP4.5 and RCP8.5). Our analysis focuses on the spring- and summer time periods, since previous studies showed BF are the most pronounced in these seasons. We find that BF induced by changes in surface heat fluxes lead to changes in land-sea thermal contrast and atmospheric stability. This, in turn, noticeably changes the atmospheric baroclinicity and, thus, leads to a change of cyclone activity in the Arctic, in particular to the increase of cyclone frequency over the Arctic Ocean in spring. This study highlights the importance of accounting for BF in the prediction of Arctic cyclones and the role of circulation in the Arctic regional Earth system.

Ämnesord och genrebeteckningar

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

  • Zhang, WenxinLund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,MERGE: ModElling the Regional and Global Earth system,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science,University of Copenhagen(Swepub:lu)we4544zh (författare)
  • Miller, Paul A.Lund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,MERGE: ModElling the Regional and Global Earth system,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science(Swepub:lu)nate-pum (författare)
  • Mokhov, Igor I.Lomonosov Moscow State University,A.M. Obukhov Institute of Atmospheric Physics, RAS (författare)
  • Semenov, Vladimir A.Institute of Geography, Russian Academy of Sciences,A.M. Obukhov Institute of Atmospheric Physics, RAS (författare)
  • Matthes, HeidrunAlfred-Wegener Institute, Helmholtz Center for Polar and Marine Research, Bremerhaven (författare)
  • Smith, BenjaminLund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,MERGE: ModElling the Regional and Global Earth system,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science,Hawkesbury Institute for the Environment(Swepub:lu)ple-bsm (författare)
  • Rinke, AnnetteAlfred-Wegener Institute, Helmholtz Center for Polar and Marine Research, Bremerhaven (författare)
  • A.M. Obukhov Institute of Atmospheric Physics, RASBECC: Biodiversity and Ecosystem services in a Changing Climate (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Environmental Research Letters: IOP Publishing16:61748-93181748-9326

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