| DOI: | 10.2172/1097441
|
| 报告号: | DOE-UCDavis-ER64530
|
| 报告题名: | Final Report: Process Models of the Equilibrium Size & State of Organic/Inorganic Aerosols for the Development of Large Scale Atmospheric Models & the Analysis of Field Data |
| 作者: | Wexler, Anthony Stein [UC Davis]; Clegg, Simon Leslie [UC Davis]
|
| 出版年: | 2013
|
| 发表日期: | 2013-10-26
|
| 国家: | 美国
|
| 语种: | 英语
|
| 英文关键词: | Atmospheric aerosols
; climate change
; atmospheric chemistry
|
| 中文主题词: | 气溶胶
; 大气化学
; 元素
|
| 主题词: | AEROSOLS
; ATMOSPHERIC CHEMISTRY
; ELEMENTS
|
| 英文摘要: | Our work addressed the following elements of the Call for Proposals: (i) âto improve the theoretical representation of aerosol processes studied in ASP laboratory or field studiesâ, (ii) âto enhance the incorporation of aerosol process information into modules suitable for large-scale or global atmospheric modelsâ, and (iii) âprovide systematic experimental validation of process model predictions ... using data from targeted laboratory and field experimentsâ. Achievements to the end of 2012 are described in four previous reports, and include: new models of densities and surface tensions of pure (single solute) and mixed aqueous solutions of typical aerosol composition under all atmospheric conditions (0 to 100% RH and T > 150 K); inclusion of these models into the widely used Extended Aerosol Inorganics model (E-AIM, http://www.aim.env.uea.ac.uk/aim/aim.php); the addition of vapor pressure calculators for organic compounds to the E-AIM website; the ability of include user-defined organic compounds and/or lumped surrogates in gas/aerosol partitioning calculations; the development of new equations to represent the properties of soluble aerosols over the entire concentration range (using methods based upon adsorption isotherms, and derived using statistical mechanics), including systems at close to zero RH. These results are described in publications 1-6 at the end of this report, and on the âNewsâ page of the E-AIM website (http://www.aim.env.uea.ac.uk/aim/info/news.html). During 2012 and 2013 we have collaborated in a combined observation and lab-based study of the water uptake of the organic component of atmospheric aerosols (PI Gannet Hallar, of the Desert Research Institute). The aerosol samples were analyzed using several complementary techniques (GC/MS, FT-ICR MS, and ion chromatography) to produce a very complete organic âspeciationâ including both polar and non-polar compounds. Hygroscopic growth factors of the samples were measured, and we have just completed comparisons of the data with our process model predictions based upon the inorganic and organic composition of the samples. |
| URL: | http://www.osti.gov/scitech/servlets/purl/1097441
|
| Citation statistics: |
|
| 资源类型: | 研究报告
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/40941
|
| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
|
| File Name/ File Size |
Content Type |
Version |
Access |
License |
|
|---|
| 1097441.doc（32KB） | 研究报告 | -- | 开放获取 | | View
Download
|
|
| Recommended Citation: | |
Wexler, Anthony Stein [UC Davis],Clegg, Simon Leslie [UC Davis]. Final Report: Process Models of the Equilibrium Size & State of Organic/Inorganic Aerosols for the Development of Large Scale Atmospheric Models & the Analysis of Field Data. 2013-01-01.
|
|
|