Measurement report: Characterization of  aerosol hygroscopicity over Southeast  Asia during the NASA CAMP<sup>2</sup>Ex campaign

Lorenzo, Genevieve Rose; Ziemba, Luke D.; Arellano, Avelino F.; Barth, Mary C.; Crosbie, Ewan C.; DiGangi, Joshua P.; Diskin, Glenn S.; Ferrare, Richard; Hilario, Miguel Ricardo A.; Shook, Michael A.; Tilmes, Simone; Wang, Jian; Xiao, Qian; Zhang, Jun; Sorooshian, Armin

doi:https://doi.org/10.5194/acp-25-5469-2025

Articles | Volume 25, issue 11

https://doi.org/10.5194/acp-25-5469-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Cloud, Aerosol and Monsoon Processes Philippines Experiment...

https://doi.org/10.5194/acp-25-5469-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 25, issue 11

Measurement report

|

03 Jun 2025

Measurement report |

| 03 Jun 2025

Measurement report: Characterization of aerosol hygroscopicity over Southeast Asia during the NASA CAMP²Ex campaign

Genevieve Rose Lorenzo, Luke D. Ziemba, Avelino F. Arellano, Mary C. Barth, Ewan C. Crosbie, Joshua P. DiGangi, Glenn S. Diskin, Richard Ferrare, Miguel Ricardo A. Hilario, Michael A. Shook, Simone Tilmes, Jian Wang, Qian Xiao, Jun Zhang, and Armin Sorooshian

Supplement

https://doi.org/10.5194/acp-25-5469-2025-supplement

Data sets

CAM-chem Model Outputs used in "Measurement Report: Characterization of Aerosol Hygroscopicity over Southeast Asia during the NASA CAMP2Ex Campaign" Simone Tilmes and Jun Zhang https://doi.org/10.6084/m9.figshare.26755936.v1

CAMP2Ex P-3 In-Situ Trace Gas Data NASA/LARC/SD/ASDC https://doi.org/10.5067/Airborne/CAMP2Ex_TraceGas_AircraftInSitu_P3_Data_1

CAMP2Ex P-3 In-Situ Aerosol Data NASA/LARC/SD/ASDC https://doi.org/10.5067/Airborne/CAMP2Ex_Aerosol_AircraftInSitu_P3_Data_1

CAMP2Ex P-3 In-Situ Cloud Data NASA/LARC/SD/ASDC https://doi.org/10.5067/Airborne/CAMP2Ex_Cloud_AircraftInSitu_P3_Data_1

CAMP2Ex P-3 In-Situ Meteorological and Navigational Data NASA/LARC/SD/ASDC https://doi.org/10.5067/Airborne/CAMP2Ex_MetNav_AircraftInSitu_P3_Data_1

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Short summary

Novel aerosol hygroscopicity analyses of CAMP²Ex (Cloud, Aerosol, and Monsoon Processes Philippines Experiment) field campaign data show low aerosol hygroscopicity values in Southeast Asia. Organic carbon from smoke decreases hygroscopicity to levels more like those in continental than in polluted marine regions. Hygroscopicity changes at cloud level demonstrate how surface particles impact clouds in the region, affecting model representation of aerosol and cloud interactions in similar polluted marine regions with high organic carbon emissions.

Measurement report: Characterization of aerosol hygroscopicity over Southeast Asia during the NASA CAMP2Ex campaign

Supplement

Data sets

Measurement report: Characterization of aerosol hygroscopicity over Southeast Asia during the NASA CAMP²Ex campaign