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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Global Observations of Acetyl Peroxynitrate (PAN) in the Remote Troposphere
Lee, Y. R., Huey, L. G., Tanner, D. J., Roberts, J. M., Wang, Y., Wennberg, P. O., Crounse, J. D., Allen, H., Apel, E. C., Hills, A. J., Hornbrook, R. S., Elkins, J. W., Hintsa, E., Moore, F., Hall, S. R., Ullmann, K., McKain, K., Sweeney, C., Ryerson, T. B. & Peischl, J. & 5 others, , Aug 28 2025, In: Geophysical Research Letters. 52, 16, e2025GL115001.Research output: Contribution to journal › Article › peer-review
Open Access -
Modeling actinic flux and photolysis frequencies in dense biomass burning plumes
Tirpitz, J. L., Colosimo, S. F., Brockway, N., Spurr, R., Christi, M., Hall, S., Ullmann, K., Hair, J., Shingler, T., Weber, R., Dibb, J., Moore, R., Wiggins, E., Natraj, V., Theys, N. & Stutz, J., Feb 14 2025, In: Atmospheric Chemistry and Physics. 25, 3, p. 1989-2015 27 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Airborne Observations Constrain Heterogeneous Nitrogen and Halogen Chemistry on Tropospheric and Stratospheric Biomass Burning Aerosol
Decker, Z. C. J., Novak, G. A., Aikin, K., Veres, P. R., Neuman, J. A., Bourgeois, I., Bui, T. P., Campuzano-Jost, P., Coggon, M. M., Day, D. A., DiGangi, J. P., Diskin, G. S., Dollner, M., Franchin, A., Fredrickson, C. D., Froyd, K. D., Gkatzelis, G. I., Guo, H., Hall, S. R. & Halliday, H. & 32 others, , Feb 28 2024, In: Geophysical Research Letters. 51, 4, e2023GL107273.Research output: Contribution to journal › Article › peer-review
Open Access4 Scopus citations -
Biomass burning influenced actinic flux from airborne measurements and aerosol-constrained models during ASIA-AQ
Hall, S. & Ullmann, K., Dec 2024.Research output: Abstract › Poster
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Observations of cyanogen bromide (BrCN) in the global troposphere and their relation to polar surface O3 destruction
Roberts, J. M., Wang, S., Veres, P. R., Neuman, J. A., Robinson, M. A., Bourgeois, I., Peischl, J., Ryerson, T. B., Thompson, C. R., Allen, H. M., Crounse, J. D., Wennberg, P. O., Hall, S. R., Ullmann, K., Meinardi, S., Simpson, I. J. & Blake, D., Mar 20 2024, In: Atmospheric Chemistry and Physics. 24, 6, p. 3421-3443 23 p.Research output: Contribution to journal › Article › peer-review
Open Access1 Scopus citations
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