DOI: 10.1002/2014GL062309
论文题名: Do spaceborne aerosol observations limit the accuracy of modeled surface solar irradiance?
作者: Ruiz-Arias J.A. ; Gueymard C.A. ; Santos-Alamillos F.J. ; Pozo-Vázquez D.
刊名: Geophysical Research Letters
ISSN: 0094-9040
EISSN: 1944-8771
出版年: 2015
卷: 42, 期: 2 起始页码: 605
结束页码: 612
语种: 英语
英文关键词: aerosol optical depth
; cloudless downward solar fluxes
; numerical weather prediction
; verification
Scopus关键词: Atmospheric aerosols
; Budget control
; Earth (planet)
; Optical properties
; Radiation effects
; Radiative transfer
; Solar radiation
; Sun
; Uncertainty analysis
; Verification
; Weather forecasting
; Aerosol optical depths
; Global climate system
; Numerical weather prediction
; Numerical weather prediction models
; Radiative transfer model
; Solar flux
; Solar radiation budgets
; Solar radiation model
; Aerosols
; accuracy assessment
; aerosol
; global climate
; radiative transfer
; shortwave radiation
; solar radiation
; uncertainty analysis
英文摘要: Aerosols play a primary role in the global climate system and the solar radiation budget at the Earth surface. Here we analyze the role of spaceborne aerosol observations and their uncertainties in the expected accuracy of the modeled cloudless surface shortwave downward radiation using a state-of-the-art numerical weather prediction model over the continental U.S. We compare five different modeling approaches for the aerosol optical effects with differing sophistication. Overall, we show that, counterintuitively, the direct and diffuse irradiances predicted by solar radiation models that use empirically adjusted fixed aerosol extinction may be more accurate than more sophisticated radiative transfer models that require inputs of aerosols. We conclude that, compared to ground observations, the mean absolute error in satellite-retrieved aerosol optical depth over the U.S., and possibly elsewhere, should be reduced to less than 0.025 aerosol optical depth unit to assure improvement over the predictions of a simpler, aerosol-insensitive radiation model. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84923574963&doi=10.1002%2f2014GL062309&partnerID=40&md5=9f3e706c93507fcea09a74a378c9b430
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8656
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: Department of Physics, University of Jaén, Jaén, Spain
Recommended Citation:
Ruiz-Arias J.A.,Gueymard C.A.,Santos-Alamillos F.J.,et al. Do spaceborne aerosol observations limit the accuracy of modeled surface solar irradiance?[J]. Geophysical Research Letters,2015-01-01,42(2).