Inferring thermodynamic properties from CCN activation experiments: single-component and binary aerosols
This study presents a new method, Köhler Theory Analysis (KTA), to infer the molar volume and solubility of organic aerosol constituents. The method is based on measurements of surface tension, chemical composition, and CCN activity coupled with Köhler theory. KTA is evaluated by inferring the molar...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2007-10-01
|
| Series: | Atmospheric Chemistry and Physics |
| Online Access: | http://www.atmos-chem-phys.net/7/5263/2007/acp-7-5263-2007.pdf |
| _version_ | 1811267145550528512 |
|---|---|
| author | L. T. Padró A. Asa-Awuku R. Morrison A. Nenes |
| author_facet | L. T. Padró A. Asa-Awuku R. Morrison A. Nenes |
| author_sort | L. T. Padró |
| collection | DOAJ |
| description | This study presents a new method, Köhler Theory Analysis (KTA), to infer the molar volume and solubility of organic aerosol constituents. The method is based on measurements of surface tension, chemical composition, and CCN activity coupled with Köhler theory. KTA is evaluated by inferring the molar volume of six known organics (four dicarboxylic acids, one amino acid, and one sugar) in pure form and in mixtures with ammonium sulfate ((NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub>). The average error in inferred molar volumes are to within 18% of their expected value for organic fractions between 50 and 90%. This suggests that KTA is a potentially powerful tool for determining the CCN characteristic of ambient water soluble organic carbon (WSOC), providing physically-based constraints for aerosol-cloud interaction parameterizations. |
| first_indexed | 2024-04-12T20:56:08Z |
| format | Article |
| id | doaj.art-ad4c8cba21a24920bce86231a253af82 |
| institution | Directory Open Access Journal |
| issn | 1680-7316 1680-7324 |
| language | English |
| last_indexed | 2024-04-12T20:56:08Z |
| publishDate | 2007-10-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Chemistry and Physics |
| spelling | doaj.art-ad4c8cba21a24920bce86231a253af822022-12-22T03:16:59ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242007-10-0171952635274Inferring thermodynamic properties from CCN activation experiments: single-component and binary aerosolsL. T. PadróA. Asa-AwukuR. MorrisonA. NenesThis study presents a new method, Köhler Theory Analysis (KTA), to infer the molar volume and solubility of organic aerosol constituents. The method is based on measurements of surface tension, chemical composition, and CCN activity coupled with Köhler theory. KTA is evaluated by inferring the molar volume of six known organics (four dicarboxylic acids, one amino acid, and one sugar) in pure form and in mixtures with ammonium sulfate ((NH<sub>4</sub>)<sub>2</sub>SO<sub>4</sub>). The average error in inferred molar volumes are to within 18% of their expected value for organic fractions between 50 and 90%. This suggests that KTA is a potentially powerful tool for determining the CCN characteristic of ambient water soluble organic carbon (WSOC), providing physically-based constraints for aerosol-cloud interaction parameterizations.http://www.atmos-chem-phys.net/7/5263/2007/acp-7-5263-2007.pdf |
| spellingShingle | L. T. Padró A. Asa-Awuku R. Morrison A. Nenes Inferring thermodynamic properties from CCN activation experiments: single-component and binary aerosols Atmospheric Chemistry and Physics |
| title | Inferring thermodynamic properties from CCN activation experiments: single-component and binary aerosols |
| title_full | Inferring thermodynamic properties from CCN activation experiments: single-component and binary aerosols |
| title_fullStr | Inferring thermodynamic properties from CCN activation experiments: single-component and binary aerosols |
| title_full_unstemmed | Inferring thermodynamic properties from CCN activation experiments: single-component and binary aerosols |
| title_short | Inferring thermodynamic properties from CCN activation experiments: single-component and binary aerosols |
| title_sort | inferring thermodynamic properties from ccn activation experiments single component and binary aerosols |
| url | http://www.atmos-chem-phys.net/7/5263/2007/acp-7-5263-2007.pdf |
| work_keys_str_mv | AT ltpadro inferringthermodynamicpropertiesfromccnactivationexperimentssinglecomponentandbinaryaerosols AT aasaawuku inferringthermodynamicpropertiesfromccnactivationexperimentssinglecomponentandbinaryaerosols AT rmorrison inferringthermodynamicpropertiesfromccnactivationexperimentssinglecomponentandbinaryaerosols AT anenes inferringthermodynamicpropertiesfromccnactivationexperimentssinglecomponentandbinaryaerosols |