DOI: 10.1002/2014GL060946
论文题名: Separation of aerosol fine- and coarse-mode radiative properties: Effect on the mineral dust longwave, direct radiative forcing
作者: Sicard M. ; Bertolín S. ; Muñoz C. ; Rodríguez A. ; Rocadenbosch F. ; Comerõn A.
刊名: Geophysical Research Letters
ISSN: 0094-9767
EISSN: 1944-9498
出版年: 2014
卷: 41, 期: 19 起始页码: 6978
结束页码: 6985
语种: 英语
英文关键词: coarse-/fine-mode separation
; mineral dust
; multiwavelength lidar
; radiative forcing
Scopus关键词: Atmospheric radiation
; Minerals
; Optical radar
; Barcelona , Spain
; Classical approach
; Direct radiative forcing
; Extinction coefficients
; Mineral dust
; Multiwavelength lidar
; Radiative forcings
; Radiative properties
; Dust
; aerosol
; estimation method
; longwave radiation
; radiative forcing
; Barcelona [Catalonia]
; Catalonia
; Spain
; Spain
英文摘要: An improvement of the estimation of mineral dust longwave, direct radiative forcing is presented. It is based on recent developments that combine Sun photometer and multiwavelength lidar data to retrieve range-resolved coarse- and fine-mode extinction coefficients. The forcings are calculated separately for each mode, and their sum is compared to the classical approach in which only the total extinction is considered. The results of four cases of mineral dust intrusion in Barcelona, Spain, show that when the coarse mode predominates, the longwave forcings calculated with the classical approach are underestimated up to 20% near the surface. In all cases the strong coarse-mode predominance near the surface has also an effect on the forcing in the upper layers. Key Points Separated treatment of coarse- and fine-mode particles in a RTMImprovement of the mineral dust longwave, direct radiative forcing estimationIncrease of the longwave forcing when the coarse mode predominates up to 20% ©2014. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84911382655&doi=10.1002%2f2014GL060946&partnerID=40&md5=de7a7e84d31882af32bea0f64051c685
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7031
Appears in Collections: 气候减缓与适应
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作者单位: RSLab/IEEC-CRAE, Universitat Politècnica de Catalunya, Barcelona, Spain
Recommended Citation:
Sicard M.,Bertolín S.,Muñoz C.,et al. Separation of aerosol fine- and coarse-mode radiative properties: Effect on the mineral dust longwave, direct radiative forcing[J]. Geophysical Research Letters,2014-01-01,41(19).