WE-CAN 2018

Western wildfire Experiment for Cloud chemistry, Aerosol absorption and Nitrogen (WE-CAN)


The Western wildfire Experiment for Cloud chemistry, Aerosol absorption and Nitrogen (WE-CAN) campaign is aimed at understanding the chemistry in western wildfire smoke by systematically characterizing the emissions and first day of evolution of western U.S. wildfire plumes.

The NCAR/NSF C-130 research aircraft in the hangar
Looking forward inside the NCAR/NSF C-130 with all the research instrumentation installed and operating
Wildfire in Montana from Research Flight 11 seen through the cockpit

 

 

 

 

The project was focused on three sets of scientific questions related to fixed nitrogen, absorbing aerosols, cloud activation and chemistry in wildfire plumes. The data were collected from the NCAR/NSF C-130 research aircraft in July and August 2018.

Graduate student Peng and former undergraduate student Matson running the I- CIMS and the AMS midflight
Postdoctoral researcher Brett running the I- CIMS midflight

 

 

 

 

 

 

 

 

 

 

WE-CAN Campaign Publications

Barry, K. R., T. C. J. Hill, C. Jentzsch and P. J. DeMott, 2021: Pragmatic protocols for working cleanly when measuring ice nucleating particles, Atmospheric Research, 250, 105419, doi: 10.1016/j.atmosres.2020.105419.

Barry, K. R., T. C. J. Hill, E. J. T. Levin, C. H. Twohy, K. A. Moore, Z. D. Weller, D. W. Toohey, M. Reeves, T. Campos, R. Geiss, G. P. Schill, E. V. Fischer, S. M. Kreidenweis, and Paul J. DeMott, 2021: Observations of Ice Nucleating Particles in the Free Troposphere From Western US Wildfires. Journal of Geophysical Research: Atmospheres, 126, e2020JD033752, doi: 10.1029/2020JD033752.

Calahorrano, J. F. J., J. Lindaas, K. O’Dell, B. B. Palm, Q. Peng, F. Flocke, I. B. Pollack, L. A. Garofalo, D. K. Farmer, J. R. Pierce, J. L. Collett Jr., A. Weinheimer, T. Campos, R. S. Hornbrook, S. R. Hall, K. Ullmann, M. A. Pothier, E. C. Apel, W. Permar, L. Hu, A. J. Hills, D. Montzka, G. Tyndall, J. A. Thornton, and E. V. Fischer, 2020: Daytime Oxidized Reactive Nitrogen Partitioning in Western U.S. Wildfire Smoke Plumes. Journal of Geophysical Research: Atmospheres, 126, e2020JD033484, doi: 10.1029/2020JD033484.

Garofalo, L.A., M.A. Pothier, E.J.T. Levin, T. Campos, S.M. Kreidenweis, and D.K. Farmer, 2019: Emission and Evolution of Submicron Organic Aerosol in Smoke from Wildfires in the Western United States. ACS Earth and Space Chemistry, 3, 1237 – 1247, doi: 10.1021/acsearthspacechem.9b00125.

Hodshire, A. L., A. Akherati, M. J. Alvarado, B. Brown-Steiner, S. H. Jathar, J. L. Jimenez, S. M. Kreidenweis, C. R. Lonsdale, T. B. Onasch, A. M. Ortega, and J. R. Pierce, 2019: Aging Effects on Biomass Burning Aerosol Mass and Composition: A Critical Review of Field and Laboratory Studies. Environmental Science & Technology, 53, 17, 10007-10022, doi: 10.1021/acs.est.9b02588.

Lindaas, J., I. B. Pollack, L. A. Garofalo, M. A. Pothier, D. K. Farmer, S. M. Kreidenweis, T. L. Campos, F. Flocke, A. J. Weinheimer, D. D. Montzka, G. S. Tyndall, B. B. Palm, Q. Peng, J. A. Thornton, W. Permar, C. Wielgasz, L. Hu, R. D. Ottmar, J. C. Restaino, A. T. Hudak, I‐T. Ku, Y. Zhou, B. C. Sive, A. Sullivan, J. L. Collett Jr, and E. V. Fischer, 2020: Emissions of Reactive Nitrogen From Western U.S. Wildfires During Summer 2018. Journal of Geophysical Research: Atmospheres, 126, e2020JD032657, doi: 10.1029/2020JD032657.

O’Dell, K., R. S. Hornbrook, W. Permar, E. J. T. Levin, L. A. Garofalo, E. C. Apel, N. J. Blake, A. Jarnot, M. A. Pothier, D. K. Farmer, L. Hu, T. Campos, B. Ford, J. R. Pierce, and E. J. Fischer, 2020: Hazardous Air Pollutants in Fresh and Aged Western US Wildfire Smoke and Implications for Long-Term Exposure, Environ. Sci. Technol., 54, 19, 11838-11847, doi: 10.1021/acs.est.0c04497.

Palm, B. B., Q. Peng, C. D. Fredrickson, B. H. Lee, L. A. Garofalo, M. A. Pothier, S. M. Kreidenweis, D. K. Farmer, R. P. Pokhrel, Y. Shen, S. M. Murphy, W. Permar, L. Hu, T. L. Campos, S. R. Hall, K. Ullmann, X. Zhang, F. Flocke, E. V. Fischer, and J. A. Thornton, 2020: Quantification of organic aerosol and brown carbon evolution in fresh wildfire plumes. Proc. Natl. Acad. Sci. U.S.A., 117(47), 29469–29477, doi: 10.1073/pnas.2012218117.

Peng, Q., B. B. Palm, K. E. Melander, B. H. Lee, S. R. Hall, K. Ullmann, T. Campos, A. J. Weinheimer, E. C. Apel, R. S. Hornbrook, A. J. Hills, D. D. Montzka, F. Flocke, L. Hu, W. Permar, C. Wielgasz, J. Lindaas, I. B. Pollack, E. V. Fischer, T. H. Bertram, and J. A. Thornton, 2020: HONO Emissions from Western U.S. Wildfires Provide Dominant Radical Source in Fresh Wildfire Smoke, Environ. Sci. Technol., 54, 10, 5954-5963, doi: 10.1021/acs.est.0c00126.

Permar, W., Q. Wang, V. Selimovic, C. Wielgasz, R. J. Yokelson, R. S. Hornbrook, A. J. Hills, E. C. Apel, I-T. Ku , Y Zhou, B. Sive, A. P. Sullivan, J. L. Collett Jr., T. L. Campos, B. B. Palm, Q. Peng, J. A. Thornton, L. A. Garofalo, D. K. Farmer, S. M. Kreidenweis, E. J. T. Levin, P. J. DeMott, F. Flocke, E. V. Fischer, L. Hu, 2021: Emissions of trace organic gases from western U.S. wildfires based on WE- CAN aircraft measurements, J. Geophys. Res. – Atmos., 126, e2020JD033838, doi: 10.1029/2020J033838.

Pollack, Ilana B., Jakob Lindaas, J. Robert Roscioli, Michael Agnese, Wade Permar, Lu Hu, and Emily V. Fischer, 2019: Evaluation of ambient ammonia measurements from a research aircraft using a closed-path QC-TILDAS spectrometer operated with active continuous passivation. Atmos. Meas. Tech., doi: 10.5194/amt-2019-11.

Selimovic, V., R. J. Yokelson, G. R. McMeeking, and S. Coefield, 2019: In situ measurements of trace gases, PM, and aerosol optical properties during the 2017 NW US wildfire smoke event. Atmos. Chem. Phys., 19, 3905–3926, doi: 10.5194/acp-19-3905-2019.

Selimovic, V., R. J. Yokelson, G. R. McMeeking, and S. Coefield, 2020: Aerosol Mass and Optical Properties, Smoke Influence on O3, and High NO3 Production Rates in a Western U.S. City Impacted by Wildfires. Journal of Geophysical Research: Atmospheres, 125, e2020JD032791, doi: 10.1029/2020JD032791.

Twohy, C. H., D. Toohey, E. J. T. Levin, P. J. DeMott, K. R. Barry, B. Rainwater, L. Garofalo, M. Pothier, D. Farmer, S. Kreidenweis, R. Pokhrel, S. Murphy and E. V. Fischer, 2021: Biomass Burning Smoke Influences Clouds over the Western U. S., Biomass burning smoke and its influence on clouds over the western U. S., Geophysical Research Letters, 48, e2021GL094224, doi: 10.1029/2021GL094224.