Two Jaffe Group members have published peer-reviewed papers in October. Well done to Xi Gong and Pao Baylon for their outstanding work!
Xi Gong and her coauthors used a statistical approach, the Generalized Additive Model, to quantify ozone impacts from wildfires on 8 US cities. They showed that this approach can provide quantitative support for situations when large contributions from noncontrollable sources, such as wildfires, caused an exceedance of the EPA’s daily ozone standard.
Read the full paper here.
Pao Baylon and his coauthors looked at a Siberian biomass burning event in Spring 2015 that was observed at Mt. Bachelor Observatory and by satellite instruments, and also intercepted by a research aircraft. When the plume was in the eastern Pacific, it split into two plumes, one moving eastward toward MBO and the other moving northeast to Alaska and then south to the US Midwest. The second plume was observed by the aircraft in the Midwest. Baylon et al. found that the ozone production observed at MBO was higher than that of the aircraft plume. This was due to the plume at MBO being warmer and the aircraft plume being colder.
Read the full paper here.
The Jaffe Group has published 4 first-author papers so far this year. Stay tuned for more! Click the following links to see each paper:
- James Laing, Dan Jaffe, Abbigale Slavens, Wenting Li, and Wenxi Wang, Can ΔPM2.5/ΔCO and ΔNOy/ΔCO enhancement ratios be used to characterize the influence of wildfire smoke in urban areas? Aerosol and Air Quality Research, doi: 10.4209/aaqr.2017.02.0069.
- Honglian Gao and Dan Jaffe, Comparison of ultraviolet absorbance and NO-chemiluminescence for ozone measurement in wildfire plumes at the Mount Bachelor Observatory. Atmospheric Environment 166, 224–233, doi: 10.1016/j.atmosenv.2017.07.007.
- Lei Zhang and Dan Jaffe, Trends and sources of ozone and sub-micron aerosols at the Mt. Bachelor Observatory (MBO) during 2004–2015. Atmospheric Environment 165, 143–154, doi: 10.1016/j.atmosenv.2017.06.042.
- Dan Jaffe and Lei Zhang, Meteorological anomalies lead to elevated O3 in the western U.S. in June 2015. Geophysical Research Letters 44, 1990–1997, doi: 10.1002/2016GL072010.
2016 was a record year for papers for the Jaffe Group. This year, group members were first authors of 5 papers and contributing authors of 11 more papers, for a total of 16 papers.
The following are the group’s first-authored papers of 2016:
- Pao Baylon et al., Interannual variability in baseline ozone and its relationship to surface ozone in the western U.S.
- Nicole Briggs et al., Particulate matter, ozone, and nitrogen species in aged wildfire plumes observed at the Mount Bachelor Observatory
- Lynne Gratz et al., Airborne observations of mercury emissions from the Chicago/Gary urban/industrial area during the 2013 NOMADSS campaign
- James Laing et al., Physical and optical properties of aged biomass burning aerosol from wildfires in Siberia and the Western USA at the Mt. Bachelor Observatory
- Crystal McClure et al., Carbon dioxide in the free troposphere and boundary layer at the Mt. Bachelor Observatory
See the Publications page for a full list of our published papers.
On June 1, Dr. Jesse Ambrose and colleagues published a paper in the journal Atmospheric Measurement Techniques that describes a new instrument for measurements of hydrogen cyanide (HCN), a selective tracer of biomass burning emissions, in the lower atmosphere. The instrument is capable of providing long-term HCN measurements in the background atmosphere and will serve as a valuable research tool for assessing the influence of wildfire and domestic wood burning smoke on atmospheric chemistry and air quality.
Read the paper here.