| DOI: | 10.1002/2015GL064291
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| 论文题名: | Radiative flux and forcing parameterization error in aerosol-free clear skies |
| 作者: | Pincus R.; Mlawer E.J.; Oreopoulos L.; Ackerman A.S.; Baek S.; Brath M.; Buehler S.A.; Cady-Pereira K.E.; Cole J.N.S.; Dufresne J.-L.; Kelley M.; Li J.; Manners J.; Paynter D.J.; Roehrig R.; Sekiguchi M.; Schwarzkopf D.M.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9311
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| EISSN: | 1944-9042
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| 出版年: | 2015
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| 卷: | 42, 期:13 | | 起始页码: | 5485
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| 结束页码: | 5492
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| 语种: | 英语
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| 英文关键词: | Parameterization
; Radiation
; Radiative forcing
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| Scopus关键词: | Aerosols
; Atmospheric radiation
; Carbon
; Carbon dioxide
; Climate change
; Climate models
; Errors
; Heat radiation
; Atmospheric conditions
; Global estimate
; Integrated water vapors
; Parameterized
; Radiative fluxes
; Radiative forcings
; Reference models
; Short-wave radiation
; Parameterization
; accuracy assessment
; aerosol
; carbon dioxide
; clear sky
; climate change
; climate modeling
; model validation
; parameterization
; radiative forcing
; solar radiation
; water vapor
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| 英文摘要: | 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/m2, 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. Key Points Radiation parameterizations in GCMs are more accurate than their predecessors Errors in estimates of 4 ×CO2 forcing are large, especially for solar radiation Errors depend on atmospheric state, so global mean error is unknown. © 2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84938209037&doi=10.1002%2f2015GL064291&partnerID=40&md5=b39c9038396856749122d4b4499a3290
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/8926
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States
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| Recommended Citation: | |
Pincus R.,Mlawer E.J.,Oreopoulos L.,et al. Radiative flux and forcing parameterization error in aerosol-free clear skies[J]. Geophysical Research Letters,2015-01-01,42(13).
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