Relative-humidity-dependent organic aerosol thermodynamics via an efficient reduced-complexity model

Gorkowski, Kyle; Preston, Thomas C.; Zuend, Andreas

doi:https://doi.org/10.5194/acp-19-13383-2019

Articles | Volume 19, issue 21

https://doi.org/10.5194/acp-19-13383-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-19-13383-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 21

Research article

|

30 Oct 2019

Research article |

| 30 Oct 2019

Relative-humidity-dependent organic aerosol thermodynamics via an efficient reduced-complexity model

Kyle Gorkowski, Thomas C. Preston, and Andreas Zuend

Supplement

https://doi.org/10.5194/acp-19-13383-2019-supplement

Data sets

Binary Activity Coefficent Model K. Gorkowski, T. C. Preston, and A. Zuend https://github.com/Gorkowski/Binary_Activity_Thermodynamics_Model

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Short summary

We present the new Binary Activity Thermodynamics (BAT) model, which is a water-sensitive reduced-complexity organic aerosol thermodynamics model. It can use bulk properties like O : C, molar mass, and RH to predict organic activity coefficients and water uptake behavior. We show applications in RH-dependent organic co-condensation, liquid–liquid phase separation, and Kohler curve predictions, and we validate the BAT model against laboratory measurements.