DOI: 10.1002/2013JD020021
论文题名: Measurements of the mass absorption cross section of atmospheric soot particles using Raman spectroscopy
作者: Nordmann S. ; Birmili W. ; Weinhold K. ; Müller K. ; Spindler G. ; Wiedensohler A.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 21 起始页码: 12075
结束页码: 12085
语种: 英语
英文关键词: black carbon
; elemental carbon
; graphitic carbon
; mass absorption cross section
; Raman-spectroscopy
; soot
Scopus关键词: Light absorption
; Photometry
; Raman spectroscopy
; Soot
; Spectrometers
; Troposphere
; Black carbon
; Elemental carbon
; Graphitic carbons
; Light absorption coefficients
; Mass absorption
; Multiangle absorption photometries
; Orthogonal regression
; Short-wave radiation
; Dust
; black carbon
; carbon
; photometer
; Raman spectroscopy
; shortwave radiation
; soot
; troposphere
; Central Europe
英文摘要: Soot particles are a major absorber of shortwave radiation in the atmosphere. The mass absorption cross section is an essential quantity to describe this light absorption process. This work presents new experimental data on the mass absorption cross section of soot particles in the troposphere over Central Europe. Mass absorption cross sections were derived as the ratio between the light absorption coefficient determined by multiangle absorption photometry (MAAP) and the soot mass concentration determined by Raman spectroscopy. The Raman method is sensitive to graphitic structures present in the particle samples and was calibrated in the laboratory using Printex®90 model particles. Mass absorption cross sections were determined for a number of seven observation sites, ranging between 3.9 and 7.4 m2 g -1depending on measurement site and observational period. The highest values were found in a continentally aged air mass in winter, where soot particles were assumed to be mainly internally mixed. Our values are in the lower range of previously reported values, possibly due to instrumental differences to the former photometer and mass measurements. Overall, a value of 5.3m2 g-1from orthogonal regression over all samples is considered to be representative for the soot mass absorption cross section in the troposphere over Central Europe. Key Points New values of the mass absorption cross section of atmospheric soot particles Mass absorption cross sections are in the lower range of previous values Method is based on a combination of MAAP and Raman-spectrometer ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63180
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Leibniz Institute for Tropospheric Research, Permoserstrasse 15, 04318 Leipzig, Germany
Recommended Citation:
Nordmann S.,Birmili W.,Weinhold K.,et al. Measurements of the mass absorption cross section of atmospheric soot particles using Raman spectroscopy[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(21)