DOI: 10.1175/JCLI-D-17-0523.1
Scopus记录号: 2-s2.0-85047070511
论文题名: Surface irradiances of edition 4.0 Clouds and the Earth's Radiant Energy System (CERES) Energy Balanced and Filled (EBAF) data product
作者: Kato S. ; Rose F.G. ; Rutan D.A. ; Thorsen T.J. ; Loeb N.G. ; Doelling D.R. ; Huang X. ; Smith W.L. ; Su W. ; Ham S.-H.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2018
卷: 31, 期: 11 起始页码: 4501
结束页码: 4527
语种: 英语
英文关键词: Radiation budgets
; Radiative fluxes
; Radiative transfer
Scopus关键词: Atmospheric humidity
; Budget control
; Infrared devices
; Infrared instruments
; Radiative transfer
; Uncertainty analysis
; Atmospheric infrared sounders
; Atmospheric properties
; Cloud-aerosol lidar and infrared pathfinder satellite observations
; Clouds and the Earth's radiant energy systems
; Radiation budget
; Radiative fluxes
; Surface irradiance
; Top of atmospheres
; Lagrange multipliers
; AIRS
; algorithm
; CALIPSO
; cloud radiative forcing
; CloudSat
; energy balance
; error correction
; irradiance
; marine atmosphere
; polar region
; radiation budget
; radiative transfer
; top of atmosphere
英文摘要: The algorithm to produce the Clouds and the Earth's Radiant Energy System (CERES) Edition 4.0 (Ed4) Energy Balanced and Filled (EBAF)-surface data product is explained. The algorithm forces computed top-of-atmosphere (TOA) irradiances to match with Ed4 EBAF-TOA irradiances by adjusting surface, cloud, and atmospheric properties. Surface irradiances are subsequently adjusted using radiative kernels. The adjustment process is composed of two parts: bias correction and Lagrange multiplier. The bias in temperature and specific humidity between 200 and 500 hPa used for the irradiance computation is corrected based on observations by Atmospheric Infrared Sounder (AIRS). Similarly, the bias in the cloud fraction is corrected based on observations by Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) and CloudSat. Remaining errors in surface, cloud, and atmospheric properties are corrected in the Lagrange multiplier process. Ed4 global annual mean (January 2005 through December 2014) surface net shortwave (SW) and longwave (LW) irradiances increase by 1.3 W m-2 and decrease by 0.2 W m-2, respectively, compared to EBAF Edition 2.8 (Ed2.8) counterparts (the previous version), resulting in an increase in net SW + LW surface irradiance of 1.1 W m-2. The uncertainty in surface irradiances over ocean, land, and polar regions at various spatial scales are estimated. The uncertainties in all-sky global annual mean upward and downward shortwave irradiance are 3 and 4 W m-2, respectively, and the uncertainties in upward and downward longwave irradiance are 3 and 6 W m-2, respectively. With an assumption of all errors being independent, the uncertainty in the global annual mean surface LW + SW net irradiance is 8 W m-2. © 2018 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111503
Appears in Collections: 气候减缓与适应
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作者单位: NASA Langley Research Center, Hampton, VA, United States; Science Systems and Applications, Inc., Hampton, VA, United States; University of Michigan, Ann Arbor, MI, United States
Recommended Citation:
Kato S.,Rose F.G.,Rutan D.A.,et al. Surface irradiances of edition 4.0 Clouds and the Earth's Radiant Energy System (CERES) Energy Balanced and Filled (EBAF) data product[J]. Journal of Climate,2018-01-01,31(11)