Publications per year
Publications per year
Personal profile
Education/Academic qualification
Physics, BS, University of California at Berkeley
Physics, MS, University of Colorado Boulder
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Dive into the research topics where Kirk Ullmann is active. These topic labels come from the works of this person. Together they form a unique fingerprint.
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Collaborations and top research areas from the last five years
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
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Incorporating Gas-Phase Chemistry Into the Unified Forecast System (UFS) for Global Air Quality Applications
He, J., Zhang, L., Schwantes, R. H., Baker, B., Horowitz, L., Naik, V., Lyu, C., Moon, Z., Grell, G., Ahmadov, R., Schnell, J., Yang, K., Wei, Z., Wang, S., Chang, K. L., Gorchov Negron, A. M., Zhu, A., Kondragunta, S., Apel, E. C. & Bourgeois, I. & 10 others, , Mar 2026, In: Journal of Advances in Modeling Earth Systems. 18, 3, e2025MS005299.Research output: Contribution to journal › Article › peer-review
Open Access -
Insights on ozone formation sensitivity in Southeast and East Asian megacities during ASIA-AQ
Cho, C., Franchin, A., Flocke, F., Lesko, K., Owen, C., Hall, S. R., Ullmann, K., Apel, E. C., Hills, A. J., Hornbrook, R. S., Roozitalab, B., Jeong, D., Diskin, G. S., Choi, Y., DiGangi, J. P., Miech, J., Wolfe, G. M., Hanisco, T. F., St. Clair, J. M. & Liao, J. & 21 others, , May 6 2026, In: Atmospheric Chemistry and Physics. 26, 9, p. 6097-6116 20 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Observed and Modeled Changes in Boundary-Layer and Surface-Level Actinic Flux Due To Wildfire Smoke Plumes in the California Central Valley in Summer 2018
Corwin, K. A., Hall, S. R., Ullmann, K., Corr, C. A., Pierce, J. R. & Fischer, E. V., Apr 28 2026, In: Journal of Geophysical Research: Atmospheres. 131, 8, e2025JD044846.Research output: Contribution to journal › Article › peer-review
Open Access -
Ozone photochemistry in fresh biomass burning smoke over the United States
Jin, L., Coggon, M. M., Permar, W., Juncosa Calahorrano, J. F., Palm, B. B., Gkatzelis, G. I., Robinson, M. A., Bourgeois, I., Hall, S. R., Peischl, J., Ullmann, K., Thornton, J. A., Warneke, C., Flocke, F., Fischer, E. V., Yokelson, R. J. & Hu, L., Feb 6 2026, In: Science advances. 12, 6, p. 1-15 15 p., eads2157.Research output: Contribution to journal › Article › peer-review
Open Access -
Wintertime photochemistry of acyl peroxynitrates and ozone in South Korea during the ASIA-AQ campaign
Lee, Y. R., Arterburn, L., Takeuchi, M., Tanner, D. J., Roberts, J. M., Roozitalab, B., Jeong, D., Hills, A. J., Hornbrook, R. S., Apel, E. C., Meinardi, S., Barletta, B., Blake, N. J., Blake, D. R., Kim, S., Wojnowski, W., Piel, F., Wisthaler, A., Ball, K. & Crounse, J. D. & 27 others, , Jun 22 2026, In: Atmospheric Chemistry and Physics. 26, 12, p. 8695-8715 21 p.Research output: Contribution to journal › Article › peer-review
Open Access
Datasets
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ASIA-AQ DC-8 Photolysis Frequencies (J-Values)
Hall, S. (Creator) & Ullmann, K. (Creator), NASA Atmospheric Science Data Center, Oct 18 2024
DOI: 10.5067/SUBORBITAL/ASIA-AQ/DATA001/DC8/jValue_AircraftInSitu_1
Dataset
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HIAPER Airborne Radiation Package (HARP) Actinic Flux Data
Hall, S. (Creator) & Ullmann, K. (Creator), NSF NCAR Earth Observing Lab, Apr 28 2023
Dataset
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HIAPER Atmospheric Radiation Package (HARP) CCD Actinic Flux Spectrometers Photolysis Frequencies
Hall, S. (Creator) & Ullmann, K. (Creator), NSF NCAR Earth Observing Lab, Nov 26 2013
DOI: 10.5065/D6DZ06N9
Dataset
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HIAPER Atmospheric Radiation Package (HARP) Spectrally Resolved Irradiance Data
Hall, S. (Creator), Ullmann, K. (Creator) & Schmidt, K. (Contributor), NSF NCAR Earth Observing Lab, Aug 9 2013
DOI: 10.5065/D67D2SGS
Dataset
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HARP (HIAPER Airborne Radiation Package) Data
Hall, S. (Creator) & Ullmann, K. (Creator), NSF NCAR Earth Observing Lab, Mar 20 2019
Dataset