Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Summer Arctic sea ice albedo in CMIP5 models
SMHI, Forskningsavdelningen, Klimatforskning - Rossby Centre.ORCID-id: 0000-0003-2051-743X
SMHI, Forskningsavdelningen, Atmosfärisk fjärranalys.ORCID-id: 0000-0002-6717-8343
SMHI, Forskningsavdelningen, Atmosfärisk fjärranalys.ORCID-id: 0000-0001-8256-0228
2014 (Engelska)Ingår i: Atmospheric Chemistry And Physics, ISSN 1680-7316, E-ISSN 1680-7324, Vol. 14, nr 4, s. 1987-1998Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Spatial and temporal variations of summer sea ice albedo over the Arctic are analyzed using an ensemble of historical CMIP5 model simulations. The results are compared to the CLARA-SAL product that is based on long-term satellite observations. The summer sea ice albedo varies substantially among CMIP5 models, and many models show large biases compared to the CLARA-SAL product. Single summer months show an extreme spread of ice albedo among models; July values vary between 0.3 and 0.7 for individual models. The CMIP5 ensemble mean, however, agrees relatively well in the central Arctic but shows too high ice albedo near the ice edges and coasts. In most models, the ice albedo is spatially too uniformly distributed. The summer-to-summer variations seem to be underestimated in many global models, and almost no model is able to reproduce the temporal evolution of ice albedo throughout the summer fully. While the satellite observations indicate the lowest ice albedos during August, the models show minimum values in July and substantially higher values in August. Instead, the June values are often lower in the models than in the satellite observations. This is probably due to too high surface temperatures in June, leading to an early start of the melt season and too cold temperatures in August causing an earlier refreezing in the models. The summer sea ice albedo in the CMIP5 models is strongly governed by surface temperature and snow conditions, particularly during the period of melt onset in early summer and refreezing in late summer. The summer surface net solar radiation of the ice-covered Arctic areas is highly related to the ice albedo in the CMIP5 models. However, the impact of the ice albedo on the sea ice conditions in the CMIP5 models is not clearly visible. This indicates the importance of other Arctic and large-scale processes for the sea ice conditions.

Ort, förlag, år, upplaga, sidor
2014. Vol. 14, nr 4, s. 1987-1998
Nationell ämneskategori
Oceanografi, hydrologi och vattenresurser
Forskningsämne
Fjärranalys
Identifikatorer
URN: urn:nbn:se:smhi:diva-163DOI: 10.5194/acp-14-1987-2014ISI: 000332386100015OAI: oai:DiVA.org:smhi-163DiVA, id: diva2:800534
Tillgänglig från: 2015-04-07 Skapad: 2015-03-26 Senast uppdaterad: 2018-01-11Bibliografiskt granskad

Open Access i DiVA

fulltext(2749 kB)135 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 2749 kBChecksumma SHA-512
f9985052006e33398a9b1f29b12302730b0b9bb27c24170e0f7d50e33dc07cd0e55c9618f3688919568bec4858bf2659f4accf3ce79959a22ab1a23105c04c91
Typ fulltextMimetyp application/pdf

Övriga länkar

Förlagets fulltext

Personposter BETA

Koenigk, TorbenDevasthale, AbhayKarlsson, Karl-Göran

Sök vidare i DiVA

Av författaren/redaktören
Koenigk, TorbenDevasthale, AbhayKarlsson, Karl-Göran
Av organisationen
Klimatforskning - Rossby CentreAtmosfärisk fjärranalys
I samma tidskrift
Atmospheric Chemistry And Physics
Oceanografi, hydrologi och vattenresurser

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 135 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 111 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
v. 2.35.7
|