globalchange  > 影响、适应和脆弱性
DOI: 10.1002/jgrd.50700
论文题名:
Evaluation of aerosol mixing state classes in the GISS modelE-MATRIX climate model using single-particle mass spectrometry measurements
作者: Bauer S.E.; Ault A.; Prather K.A.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期:17
起始页码: 9834
结束页码: 9844
语种: 英语
英文关键词: mixing state
Scopus关键词: Climate models ; Mass spectrometry ; Matrix algebra ; Mixing ; Aerosol particles ; Aerosol time-of-flight mass spectrometries ; Global climate model ; Mass spectrometry data ; Mixing state ; Multiconfiguration ; Sea-salt particles ; Spectrometry measurements ; Aerosols ; aerosol ; air mass ; climate modeling ; data set ; dust ; mass spectrometry ; measurement method ; mixing ; numerical model ; California ; Cheju [Cheju (PRV/ISL)] ; Cheju [South Korea] ; Sierra Nevada [California] ; South Korea ; United States ; Pinus lambertiana
英文摘要: Aerosol particles in the atmosphere are composed of multiple chemical species. The aerosol mixing state, which describes how chemical species are mixed at the single-particle level, provides critical information on microphysical characteristics that determine the interaction of aerosols with the climate system. The evaluation of mixing state has become the next challenge. This study uses aerosol time-of-flight mass spectrometry (ATOFMS) data and compares the results to those of the Goddard Institute for Space Studies modelE-MATRIX (Multiconfiguration Aerosol TRacker of mIXing state) model, a global climate model that includes a detailed aerosol microphysical scheme. We use data from field campaigns that examine a variety of air mass regimens (urban, rural, and maritime). At all locations, polluted areas in California (Riverside, La Jolla, and Long Beach), a remote location in the Sierra Nevada Mountains (Sugar Pine) and observations from Jeju (South Korea), the majority of aerosol species are internally mixed. Coarse aerosol particles, those above 1 μm, are typically aged, such as coated dust or reacted sea-salt particles. Particles below 1 μm contain large fractions of organic material, internally mixed with sulfate and black carbon, and few external mixtures. We conclude that observations taken over multiple weeks characterize typical air mass types at a given location well; however, due to the instrumentation, we could not evaluate mass budgets. These results represent the first detailed comparison of single-particle mixing states in a global climate model with real-time single-particle mass spectrometry data, an important step in improving the representation of mixing state in global climate models. Key Points Aerosol mixing state of a climate model is evaluated using ATOFMS dataNo externally mixed particles are detected above 0.5 umFractional coating of black carbon is found in the model and the measurements ©2013. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63342
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: Center for Climate Systems Research, Earth Institute, Columbia University, Broadway 2880, New York 10025, NY, United States; NASA Goddard Institute for Space Studies, New York, NY, United States; Department of Chemistry, University of Iowa, Iowa City, IA, United States; Scripps Institution of Oceanography, University of California, San Diego, CA, United States

Recommended Citation:
Bauer S.E.,Ault A.,Prather K.A.. Evaluation of aerosol mixing state classes in the GISS modelE-MATRIX climate model using single-particle mass spectrometry measurements[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(17)
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