Multi-wavelength optical measurement to enhance thermal/optical analysis for carbonaceous aerosol | |
Robles, J. A.4; Sumlin, B. J.4; Lowenthal, D. H.4; Zimmermann, R.3; Watson, J. G.1,4; Chen, L. -W. A.1,2,4; Chow, J. C.1,4; Wang, X. L.4 | |
刊名 | ATMOSPHERIC MEASUREMENT TECHNIQUES |
2015 | |
卷号 | 8期号:1页码:451-461 |
ISSN号 | 1867-1381 |
DOI | 10.5194/amt-8-451-2015 |
文献子类 | Article |
英文摘要 | A thermal/optical carbon analyzer equipped with seven-wavelength light source/detector (405-980 nm) for monitoring spectral reflectance (R) and transmittance (T) of filter samples allowed "thermal spectral analysis (TSA)" and wavelength (lambda)-dependent organic-carbon (OC)-elemental-carbon (EC) measurements. Optical sensing was calibrated with transfer standards traceable to absolute R and T measurements, adjusted for loading effects to report spectral light absorption (as absorption optical depth (tau(a,lambda))), and verified using diesel exhaust samples. Tests on ambient and source samples show OC and EC concentrations equivalent to those from conventional carbon analysis when based on the same wavelength (similar to 635 nm) for pyrolysis adjustment. TSA provides additional information that evaluates black-carbon (BC) and brown-carbon (BrC) contributions and their optical properties in the near infrared to the near ultraviolet parts of the solar spectrum. The enhanced carbon analyzer can add value to current aerosol monitoring programs and provide insight into more accurate OC and EC measurements for climate, visibility, or health studies. |
WOS关键词 | Light-absorption Measurements ; Elemental Carbon ; Black Carbon ; Organic-carbon ; United-states ; Fresno Supersite ; Brown Carbon ; Source Apportionment ; Particulate Matter ; Sampling Artifacts |
WOS研究方向 | Meteorology & Atmospheric Sciences |
语种 | 英语 |
出版者 | COPERNICUS GESELLSCHAFT MBH |
WOS记录号 | WOS:000348977600033 |
内容类型 | 期刊论文 |
源URL | [http://ir.ieecas.cn/handle/361006/9399] |
专题 | 地球环境研究所_黄土与第四纪地质国家重点实验室(2010~) |
通讯作者 | Chen, L. -W. A. |
作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Key Lab Aerosol Sci & Technol, Xian, Peoples R China 2.Univ Nevada, Dept Environm & Occupat Hlth, Las Vegas, NV 89154 USA 3.Univ Rostock, Inst Chem, Chair Analyt Chem, Joint Mass Spectrometry Ctr, D-18055 Rostock, Germany 4.Desert Res Inst, Div Atmospher Sci, Reno, NV 89512 USA |
推荐引用方式 GB/T 7714 | Robles, J. A.,Sumlin, B. J.,Lowenthal, D. H.,et al. Multi-wavelength optical measurement to enhance thermal/optical analysis for carbonaceous aerosol[J]. ATMOSPHERIC MEASUREMENT TECHNIQUES,2015,8(1):451-461. |
APA | Robles, J. A..,Sumlin, B. J..,Lowenthal, D. H..,Zimmermann, R..,Watson, J. G..,...&Wang, X. L..(2015).Multi-wavelength optical measurement to enhance thermal/optical analysis for carbonaceous aerosol.ATMOSPHERIC MEASUREMENT TECHNIQUES,8(1),451-461. |
MLA | Robles, J. A.,et al."Multi-wavelength optical measurement to enhance thermal/optical analysis for carbonaceous aerosol".ATMOSPHERIC MEASUREMENT TECHNIQUES 8.1(2015):451-461. |
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