PNNL

Dr. Gavin Cornwell is an Earth scientist in the Atmospheric Science and Technology team in PNNL’s Atmospheric, Climate, and Environmental Sciences Division. He holds a PhD in Atmospheric Chemistry from the University of California, San Diego. His graduate work focused on understanding how aerosol affected clouds in California. He joined PNNL in 2019 as a postdoctoral fellow, before transitioning to a staff scientist position. His work at PNNL has focused on measuring and modeling ice nucleating particles, with an emphasis upon soil dusts and bioaerosols.

• Single particle measurements
• Ice nucleation
• Bioaerosols
• Aerosol closure
• Aerosol-cloud interactions
• Lagrangian modeling

PhD University of California, San Diego

BS University of Texas at Dallas

American Geophysical Union

American Association of Aerosol Research

Graduate Assistance in Areas of National Need (GAANN) Fellow, UCSD, 2015-2016.

School of Global Policy & Strategy (GPS) Science Policy Fellow, UCSD, 2015-2016.

Cornwell, G. C., Steinke, I., Lata, N. N., Zelenyuk, A., Kulkarni, G., Pekour, M., Perkins, R., Levin, E. J. T., China, S., DeMott, P. J., & Burrows, S. M. (2024). Enrichment of Phosphates, Lead, and Mixed Soil-Organic Particles in INPs at the Southern Great Plains Site. Journal of Geophysical Research: Atmospheres, 129(13), e2024JD040826. https://doi.org/10.1029/2024JD040826

Cornwell, G. C., McCluskey, C. S., Hill, T. C. J., Levin, E. T., Rothfuss, N., Taylor, H., Petters, M., DeMott, P. J., Martin, A., Prather, K. A., Burrows, S. M. (2023) Bioaerosols are the dominant source of warm-temperature immersion-mode INPs and drive uncertainties in INP predictability, Science Advances  9 (37), eadg3715. 10.1126/sciadv.adg3715.

Burrows, S. M., McCluskey, C. S., Cornwell, G., Steinke, I., Zhang, K., Zhao, B., Zawadowicz, M., Raman, A., Kulkarni, G., China, S., Zelenyuk, A., & DeMott, P. J. (2022). Ice-Nucleating Particles That Impact Clouds and Climate: Observational and Modeling Research Needs. Reviews of Geophysics, 60(2), e2021RG000745. https://doi.org/10.1029/2021RG000745

Cornwell, G. C.*, Sultana, C. M.*, Petters, M., Al-Mashat, H., Rothfuss, N., Mohler, O., DeMott, P. J., Martin, A., Prather, K. A. Discrimination between individual dust and bioparticles using aerosol time-of-flight mass spectrometry, Aerosol Science and Technology. 56, 592–608 (2022). 

Cornwell, G. C., McCluskey, C. S., DeMott, P. J., Prather, K. A., & Burrows, S. M. (2021). Development of heterogeneous ice nucleation rate coefficient parameterizations from ambient measurements. Geophysical Research Letters, 48, e2021GL095359. https://doi.org/10.1029/2021GL095359. 

Brahney, J., Mahowald, N., Prank, M., Cornwell, G., Klimont, Z., Matsui, H., Prather, K. Constraining the atmospheric limb of the plastic cycle (2021). PNAS, 118 (16) e2020719118; DOI: 10.1073/pnas.2020719118

Beall, C. M., Michaud, J. M., Fish, M. A., Dinasquet, J., Cornwell, G. C., Stokes, M. D., Burkart, M. D., Hill, T. C., DeMott, P. J., Prather, K. A. Cultivable, halotolerant ice nucleating bacteria and fungi in coastal precipitation (2021). Atmos. Chem. Phys., 21, 9031–9045, https://doi.org/10.5194/acp-21-9031-2021.

Cornwell, G. C., Xiao, H., Berg, L. K., & Burrows, S. M. (2021). Simulated dust transport in the convective boundary layer. Journal of Geophysical Research: Atmospheres, 126, e2020JD033429. https://doi.org/10.1029/2020JD033429

Cornwell, G. C., Sultana, C. M., Prank, M., Cochran, R. E., Hill, T. C. J., Schill, G. P., DeMott, P. J., Mahowald, N. M., & Prather, K. A. (2020). Ejection of dust from the ocean as a potential source of marine ice nucleating particles. Journal of Geophysical Research: Atmospheres, 125, e2020JD033073. https://doi.org/10.1029/2020JD033073

Cornwell, G. C., McCluskey, C. S., Levin, E. J. T., Suski, K. J., DeMott, P. J., Kreidenweis, S. M., & Prather, K. A. (2019). Direct online mass spectrometry measurements of ice nucleating particles at a California coastal site. Journal of Geophysical Research: Atmospheres, 124, 12157– 12172. https://doi.org/10.1029/2019JD030466.

Mix, H. T., Reilly, S. P., Martin, A., Cornwell, G. (2019). Evaluating the Roles of Rainout and Post-Condensation Processes in a Landfalling Atmospheric River with Stable Isotopes in Precipitation and Water Vapor. Atmosphere 10, no. 2: 86. https://doi.org/10.3390/atmos10020086

Atwood, S. A., Kreidenweis, S. M., DeMott, P. J., Petters, M. D., Cornwell, G. C., Martin, A. C., Moore, K. A. (2019). Classification of aerosol population type and cloud condensation nuclei properties in a coastal California littoral environment using an unsupervised cluster model. Atmos Chem Phys 19(10):6931-6947. 

Martin, A. C., Cornwell, G. C., Beall, C. M., Cannon, F., Reilly, S., Schaap, B., Lucero, D., Creamean, J., Ralph, F. M., Mix, H. T., Prather, K. A. (2019) Contrasting local and long-range transported warm ice-nucleating particles during an atmospheric river in coastal California, USA. Atmos Chem Phys 19(7):4193–4210.

Martin, A. C., Cornwell, G. C., Atwood, S. A., Moore, K. A., Rothfuss N. E., Taylor H., DeMott P. J., Kreidenweis, S. M., Petters, M. D., Prather, K. A. (2017) Transport of pollution to a remote coastal site during gap flow from California’s interior: impacts on aerosol composition, clouds, and radiative balance. Atmos Chem Phys 17(2):1491–1509.

McCluskey C. S., Hill, T. C. J., Malfatti, F., Sultana, C. M., Lee, C., Santander, M. V., Beall, C. M., Moore, K. A., Cornwell, G. C., Collins, D. B., Prather, K. A., Jayarathne, T., Stone, E. A., Azam, F., Kreidenweis, S. M., DeMott, P. J. (2017) A dynamic link between ice nucleating particles released in nascent sea spray aerosol and oceanic biological activity during two mesocosm experiments. J Atmos Sci (2017):JAS-D-16-0087.1.

Sultana C. M., Cornwell G. C., Rodriguez P., Prather K. A. (2017) FATES: a flexible analysis toolkit for the exploration of single-particle mass spectrometer data. Atmos Meas Tech 10(4):1323–1334.

Forestieri, S. D., Cornwell, G. C., Helgestad, T. M., Moore, K. A., Lee, C., Novak, G. A., Sultana, C. M., Wang, X., Bertram T. H., Prather, K. A., and Cappa, C. D. (2016) Linking variations in sea spray aerosol particle hygroscopicity to composition during two microcosm experiments. Atmos Chem Phys, 16, 9003-9018.

Lee C., Sultana C. M., Collins D. B., Santander M. V., Axson J. L., Malfatti F., Cornwell G. C., Grandquist J. R., Deane G. B., Azam F., Grassian V. H., Prather K. A. (2015) Advancing model systems for fundamental laboratory studies of sea spray aerosol using the microbial loop. J Phys Chem A 119(33):8860–8870.

Wang X., Sultana C. M., Trueblood J., Hill T. C. J., Malfatti F., Lee C., Laskina O., Moore K. A., Beall C. M., McCluskey C. S., Cornwell G. C., Zhou Y., Cox J. L., Pendergraft M. A., Santander M. V., Bertram T. H., Cappa C. D., Azam F., DeMott P. J., Grassian V. H., Prather K. A. (2015) Microbial control of sea spray aerosol composition: a tale of two blooms. ACS Cent Sci 1(3):124–131.