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  Radiative flux and forcing parameterization error in aerosol-free clear skies

Pincus, R., Mlawer, E. J., Oreopoulos, L., Ackerman, A. S., Baek, S., Brath, M., et al. (2015). Radiative flux and forcing parameterization error in aerosol-free clear skies. Geophysical Research Letters, 42, 5485-5492. doi:10.1002/2015GL064291.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-002D-A259-4 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-002D-A25A-2
Genre: Journal Article

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Pincus_et_al-2015-Geophysical_Research_Letters.pdf (Publisher version), 488KB
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 Creators:
Pincus, Robert1, Author
Mlawer, Eli J.1, Author
Oreopoulos, Lazaros1, Author
Ackerman, Andrew S.1, Author
Baek, Sunghye1, Author
Brath, Manfred1, Author
Buehler, Stefan A.2, Author
Cady-Pereira, Karen E.1, Author
Cole, Jason N. S.1, Author
Dufresne, Jean-Louis1, Author
Kelley, Maxwell1, Author
Li, Jiangnan1, Author
Manners, James1, Author
Paynter, David J.1, Author
Roehrig, Romain1, Author
Sekiguchi, Miho1, Author
Schwarzkopf, Daniel M.1, Author
Affiliations:
1external, ou_persistent22              
2A 2 - Climate Processes and Feedbacks, Research Area A: Climate Dynamics and Variability, The CliSAP Cluster of Excellence, External Organizations, Bundesstraße 53, 20146 Hamburg, DE, ou_1863497              

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Free keywords: CLIMATE MODELS; COOLING RATES; ATMOSPHERES; CODES; COMPUTATION; ABSORPTION; CONTINUUM; LBLRTM; CMIP5; CO2Radiation; Parameterization; Radiative forcing;
 Abstract: This article reports on the accuracy in aerosol- and cloud-free conditions of the radiation parameterizations used in climate models. Accuracy is assessed relative to observationally validated reference models for fluxes under present-day conditions and forcing (flux changes) from quadrupled concentrations of carbon dioxide. Agreement among reference models is typically within 1 W/m(2), while parameterized calculations are roughly half as accurate in the longwave and even less accurate, and more variable, in the shortwave. Absorption of shortwave radiation is underestimated by most parameterizations in the present day and has relatively large errors in forcing. Error in present-day conditions is essentially unrelated to error in forcing calculations. Recent revisions to parameterizations have reduced error in most cases. A dependence on atmospheric conditions, including integrated water vapor, means that global estimates of parameterization error relevant for the radiative forcing of climate change will require much more ambitious calculations.

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Language(s): eng - English
 Dates: 2015
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: ISI: 000358691300050
DOI: 10.1002/2015GL064291
 Degree: -

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Title: Geophysical Research Letters
  Abbreviation : GRL
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Geophysical Union
Pages: - Volume / Issue: 42 Sequence Number: - Start / End Page: 5485 - 5492 Identifier: ISSN: 0094-8276
CoNE: https://pure.mpg.de/cone/journals/resource/954925465217