Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • 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
The representation of tropical upper tropospheric water in EC Earth V2
Chalmers University of Technology.
Chalmers University of Technology.
Luleå tekniska universitet, Institutionen för system- och rymdteknik, Rymdteknik.
SMHI.
Visa övriga samt affilieringar
2012 (Engelska)Ingår i: Climate Dynamics, ISSN 0930-7575, E-ISSN 1432-0894, Vol. 39, nr 11, s. 2713-2731Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Tropical upper tropospheric humidity, clouds, and ice water content, as well as outgoing longwave radiation (OLR), are evaluated in the climate model EC Earth with the aid of satellite retrievals. The Atmospheric Infrared Sounder and Microwave Limb Sounder together provide good coverage of relative humidity. EC Earth's relative humidity is in fair agreement with these observations. CloudSat and CALIPSO data are combined to provide cloud fractions estimates throughout the altitude region considered (500-100 hPa). EC Earth is found to overestimate the degree of cloud cover above 200 hPa and underestimate it below. Precipitating and non-precipitating EC Earth ice definitions are combined to form a complete ice water content. EC Earth's ice water content is below the uncertainty range of CloudSat above 250 hPa, but can be twice as high as CloudSat's estimate in the melting layer. CERES data show that the model underestimates the impact of clouds on OLR, on average with about 9 W m -2. Regionally, EC Earth's outgoing longwave radiation can be ~20 W m -2 higher than the observation. A comparison to ERA-Interim provides further perspectives on the model's performance. Limitations of the satellite observations are emphasised and their uncertainties are, throughout, considered in the analysis. Evaluating multiple model variables in parallel is a more ambitious approach than is customary.

Ort, förlag, år, upplaga, sidor
2012. Vol. 39, nr 11, s. 2713-2731
Nyckelord [en]
Earth sciences - Atmosphere and hydrosphere sciences
Nyckelord [sv]
humidity, clouds, IWC, tropics, climate, satellite, Geovetenskap - Atmosfärs- och hydrosfärsvetenskap
Nationell ämneskategori
Rymd- och flygteknik
Forskningsämne
Rymdteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-7816DOI: 10.1007/s00382-012-1511-0ISI: 000310870200007Scopus ID: 2-s2.0-84868686771Lokalt ID: 63c205cb-1939-4626-813d-2a599d198b83OAI: oai:DiVA.org:ltu-7816DiVA, id: diva2:980706
Anmärkning
Validerad; 2012; 20111219 (saleli)Tillgänglig från: 2016-09-29 Skapad: 2016-09-29 Senast uppdaterad: 2018-07-10Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltextScopus

Sök vidare i DiVA

Av författaren/redaktören
Eliasson, Salomon
Av organisationen
Rymdteknik
I samma tidskrift
Climate Dynamics
Rymd- och flygteknik

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 71 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • 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