Kirk Ullmann

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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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96 Article
1 Poster
1 Comment/debate

Deep Convective Trace Gas Transport to the UTLS: Highlighting Remote Sensing and Modeling Challenges With ACCLIP Campaign In Situ CO Observations
Gurganus, C., Rollins, A., Waxman, E., Pan, L. L., Smith, W. P., Tilmes, S., Chin, M., Bian, H., Viciani, S., D’Amato, F., Bianchini, G., Barucci, M., Campos, T., Ullmann, K., Iraci, L. T., Podolske, J. R., Davis, S., Baier, B. C., Barret, B. & Le Flochmoën, E. & 6 others, Clerbaux, C., Boynard, A., DeLone, S., Bednarz, E., Schwarz, J. P. & Thornberry, T. D., Jul 16 2026, In: Journal of Geophysical Research: Atmospheres. 131, 13, e2025JD045541.
Research output: Contribution to journal › Article › peer-review

Open Access
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, Commane, R., Hall, S. R., Hills, A., Hornbrook, R. S., Peischl, J., Ullmann, K., Abad, G. G., Ayazpour, Z., Nowlan, C. & McDonald, B. C., Mar 2026, In: Journal of Advances in Modeling Earth Systems. 18, 3, e2025MS005299.
Research output: Contribution to journal › Article › peer-review

Open Access
1 Scopus citations
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, Delaria, E. R., Sebol, A., Hannun, R. A., Wennberg, P. O., Ball, K., Lee, Y. R., Huey, L. G., Tanner, D. J., Arterburn, L., Blake, D. R., Blake, N. J., Barletta, B., Meinardi, S., Min, K. E., Kang, H., Nam, W., Wisthaler, A., Piel, F., Wojnowski, W., Dibb, J. & Crawford, J., 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
1 Scopus citations
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
3 Scopus citations

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
NASA DC-8 Solar Spectral Flux Radiometer (SSFR) Upwelling and Downwelling Solar Spectral Irradiance Data
Hall, S. (Creator), Ullmann, K. (Creator), Schmidt, K. (Contributor) & Kindel, B. (Contributor), NSF NCAR Earth Observing Laboratory, Jan 23 2014
DOI: 10.26023/KAM1-ACC1-FQ0R
Dataset
HIAPER Atmospheric Radiation Package (HARP) CCD Actinic Flux Spectrometers Photolysis Frequencies
Hall, S. (Creator) & Ullmann, K. (Creator), NSF NCAR Earth Observing Laboratory, Dec 18 2015
DOI: 10.5065/D6736NZT
Dataset
HIAPER Airborne Radiation Package (HARP) Actinic Flux Data
Hall, S. (Creator) & Ullmann, K. (Creator), NSF NCAR Earth Observing Laboratory, Apr 28 2023
DOI: 10.26023/ENCB-8QWB-0012
Dataset
HIAPER Atmospheric Radiation Package (HARP) Spectrally Resolved Irradiance Data
Hall, S. (Creator), Ullmann, K. (Creator) & Schmidt, K. (Contributor), NSF NCAR Earth Observing Laboratory, Aug 9 2013
DOI: 10.5065/D67D2SGS
Dataset

Kirk Ullmann

Personal profile

Education/Academic qualification

Fingerprint

Collaborations and top research areas from the last five years

Dive into details

Deep Convective Trace Gas Transport to the UTLS: Highlighting Remote Sensing and Modeling Challenges With ACCLIP Campaign In Situ CO Observations

Incorporating Gas-Phase Chemistry Into the Unified Forecast System (UFS) for Global Air Quality Applications

Insights on ozone formation sensitivity in Southeast and East Asian megacities during ASIA-AQ

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

Ozone photochemistry in fresh biomass burning smoke over the United States

ASIA-AQ DC-8 Photolysis Frequencies (J-Values)

NASA DC-8 Solar Spectral Flux Radiometer (SSFR) Upwelling and Downwelling Solar Spectral Irradiance Data

HIAPER Atmospheric Radiation Package (HARP) CCD Actinic Flux Spectrometers Photolysis Frequencies

HIAPER Airborne Radiation Package (HARP) Actinic Flux Data

HIAPER Atmospheric Radiation Package (HARP) Spectrally Resolved Irradiance Data

Kirk Ullmann

Personal profile

Education/Academic qualification

Fingerprint

Collaborations and top research areas from the last five years

Publications

Datasets