Publication Abstracts
Sorooshian et al. 2025
Sorooshian, A., L.W. Siu, K. Butler, M.A. Brunke, , S. Chellappan, J. Chen, Y. Choi, E.C. Crosbie, L. Cutler, J.P. DiGangi, G.S. Diskin, R.A. Ferrare, J.W. Hair, C.A. Hostetler, S. Kirschler, M.M. Kleb, X.-Y. Li, H. Liu, A. McComiskey, S. Namdari, D. Painemal, J.S. Schlosser, T. Shingler, M.A. Shook, S. Silva, K. Sinclair, W.L. Smith, C. Soloff, S. Stamnes, S. Tang, K.L. Thornhill, , , B. Van Diedenhoven, C. Voigt, H. Vömel, H. Wang, E.L. Winstead, Y. Xu, X. Zeng, B. Zhang, L. Ziemba, and P. Zuidema, 2025: The NASA ACTIVATE mission. Bull. Amer. Meteorol. Soc., 106, no. 8, E1517-E1538, doi:10.1175/BAMS-D-24-0136.1.
The NASA Aerosol Cloud Meteorology Interactions over the Western Atlantic Experiment (ACTIVATE) conducted 162 joint flights with two aircraft over the northwest Atlantic to study aerosol-cloud interactions (ACIs), which represent the largest uncertainty in estimating total anthropogenic radiative forcing. The combination of a high-flying King Air and low-flying HU-25 Falcon, equipped with remote sensing and in situ instruments, characterized trace gases, aerosol particles, clouds, and meteorological variables with data collected nearly simultaneously below, within, and above marine boundary layer (MBL) clouds. Flights spanning warm and cold seasons across 3 years (2020-22) provided a broad range of conditions associated with aerosol particles, cloud properties (including particle size and phase), and meteorology, ideally suited for robust ACI calculations and assessing how well models simulate a wide range of MBL clouds from stratiform to cumulus. ACTIVATE data suggest that drivers of cloud droplet number concentration Nd, including aerosol particles and MBL dynamics, vary between winter and summer months with a stronger potential to convert aerosol particles into cloud droplets in winter. Models of varying complexity not only highlight some skills in simulating winter and summer cloud types but also identify challenges that still need to be addressed such as treatment of turbulence, wet scavenging, and mesoscale organization. Remote sensing advances range from new retrieval methods for Nd, cloud phase classification, vertically resolved aerosol and cloud condensation nuclei number concentration, and ocean surface wind speed. This work describes these scientific and technological advances along with efforts in outreach and open data science.
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BibTeX Citation
@article{so03400r,
author={Sorooshian, A. and Siu, L. W. and Butler, K. and Brunke, M. A. and Cairns, B. and Chellappan, S. and Chen, J. and Choi, Y. and Crosbie, E. C. and Cutler, L. and DiGangi, J. P. and Diskin, G. S. and Ferrare, R. A. and Hair, J. W. and Hostetler, C. A. and Kirschler, S. and Kleb, M. M. and Li, X.-Y. and Liu, H. and McComiskey, A. and Namdari, S. and Painemal, D. and Schlosser, J. S. and Shingler, T. and Shook, M. A. and Silva, S. and Sinclair, K. and Smith, W. L. and Soloff, C. and Stamnes, S. and Tang, S. and Thornhill, K. L. and Tornow, F. and Tselioudis, G. and Van Diedenhoven, B. and Voigt, C. and Vömel, H. and Wang, H. and Winstead, E. L. and Xu, Y. and Zeng, X. and Zhang, B. and Ziemba, L. and Zuidema, P.},
title={The NASA ACTIVATE mission},
year={2025},
journal={Bulletin of the American Meteorological Society},
volume={106},
number={8},
pages={E1517--E1538},
doi={10.1175/BAMS-D-24-0136.1},
}
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RIS Citation
TY - JOUR ID - so03400r AU - Sorooshian, A. AU - Siu, L. W. AU - Butler, K. AU - Brunke, M. A. AU - Cairns, B. AU - Chellappan, S. AU - Chen, J. AU - Choi, Y. AU - Crosbie, E. C. AU - Cutler, L. AU - DiGangi, J. P. AU - Diskin, G. S. AU - Ferrare, R. A. AU - Hair, J. W. AU - Hostetler, C. A. AU - Kirschler, S. AU - Kleb, M. M. AU - Li, X.-Y. AU - Liu, H. AU - McComiskey, A. AU - Namdari, S. AU - Painemal, D. AU - Schlosser, J. S. AU - Shingler, T. AU - Shook, M. A. AU - Silva, S. AU - Sinclair, K. AU - Smith, W. L. AU - Soloff, C. AU - Stamnes, S. AU - Tang, S. AU - Thornhill, K. L. AU - Tornow, F. AU - Tselioudis, G. AU - Van Diedenhoven, B. AU - Voigt, C. AU - Vömel, H. AU - Wang, H. AU - Winstead, E. L. AU - Xu, Y. AU - Zeng, X. AU - Zhang, B. AU - Ziemba, L. AU - Zuidema, P. PY - 2025 TI - The NASA ACTIVATE mission JA - Bull. Amer. Meteorol. Soc. JO - Bulletin of the American Meteorological Society VL - 106 IS - 8 SP - E1517 EP - E1538 DO - 10.1175/BAMS-D-24-0136.1 ER -
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