Background and Expertise
About
The southeastern United States was one of a handful of locations worldwide that did not experience warming trends during the 20th century. Why? It could have something to do with small aerosols (or particles) created by interactions of pollutants from power plants and other combustion sources with tree emissions from the dense forests in this area. These particles, which give rise to the “blue haze” in the southern Appalachian mountain region, reflect sunlight back into space and can cool the earth’s surface.
Appalachian State University’s Dr. James Sherman is currently researching how these aerosols are making an impact on climate change and regional air quality, and the southern Appalachian mountains are considered one of the best areas for this work. He conducts much of his work at Appalachian’s AppalAIR research station on campus, one of only two co-located NOAA and NASA aerosol monitoring network sites in the U.S.
Areas of expertise
- Measurements of air quality
- Climate change
- Laser and optical instrumentation for environmental and defense applications
Education/Academic qualification
Atmospheric Physics, Ph.D., Colorado State University
… → 2002
Optical Engineering, M.S., Institute of Optics- University of Rochester
… → 1997
Physics, B.S., Iowa State University
… → 1994
Research Interests
- Measurements of air quality
- Climate Change
- Laser and optical instrumentation for environmental and defense applications
Disciplines
- Astrophysics and Astronomy
- Physics
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Atmospheric heating in the US from saharan dust: Tracking the June 2020 event with surface and satellite observations
Mehra, M., Shrestha, S., AP, K., Guagenti, M., Moffett, C. E., VerPloeg, S. G., Coogan, M. A., Rai, M., Kumar, R., Andrews, E., Sherman, J. P., Flynn, J. H., Usenko, S. & Sheesley, R. J., Oct 1 2023, In: Atmospheric Environment. 310, 119988.Research output: Contribution to journal › Article › peer-review
Open Access -
A global study of hygroscopicity-driven light-scattering enhancement in the context of other in situ aerosol optical properties
Titos, G., Burgos, M. A., Zieger, P., Alados-Arboledas, L., Baltensperger, U., Jefferson, A., Sherman, J., Weingartner, E., Henzing, B., Luoma, K., O'Dowd, C., Wiedensohler, A. & Andrews, E., Sep 2 2021, In: Atmospheric Chemistry and Physics. 21, 17, p. 13031-13050 20 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Seasonality of the particle number concentration and size distribution: A global analysis retrieved from the network of Global Atmosphere Watch (GAW) near-surface observatories
Rose, C., Collaud Coen, M., Andrews, E., Lin, Y., Bossert, I., Lund Myhre, C., Tuch, T., Wiedensohler, A., Fiebig, M., Aalto, P., Alastuey, A., Alonso-Blanco, E., Andrade, M., Artinano, B., Arsov, T., Baltensperger, U., Bastian, S., Bath, O., Beukes, J. P. & Brem, B. T. & 30 others, , Nov 25 2021, In: Atmospheric Chemistry and Physics. 21, 22, p. 17185-17223 39 p.Research output: Contribution to journal › Article › peer-review
Open Access -
A global analysis of climate-relevant aerosol properties retrieved from the network of Global Atmosphere Watch (GAW) near-surface observatories
Laj, P., Bigi, A., Rose, C., Andrews, E., Lund Myhre, C., Collaud Coen, M., Lin, Y., Wiedensohler, A., Schulz, M., A. Ogren, J., Fiebig, M., Gliß, J., Mortier, A., Pandolfi, M., Petäja, T., Kim, S. W., Aas, W., Putaud, J. P., Mayol-Bracero, O. & Keywood, M. & 30 others, , Aug 17 2020, In: Atmospheric Measurement Techniques. 13, 8, p. 4353-4392 40 p.Research output: Contribution to journal › Article › peer-review
Open Access -
A global model-measurement evaluation of particle light scattering coefficients at elevated relative humidity
Burgos, M. A., Andrews, E., Titos, G., Benedetti, A., Bian, H., Buchard, V., Curci, G., Kipling, Z., Kirkeväg, A., Kokkola, H., Laakso, A., Letertre-Danczak, J., T. Lund, M., Matsui, H., Myhre, G., Randles, C., Schulz, M., Van Noije, T., Zhang, K. & Alados-Arboledas, L. & 6 others, , Sep 4 2020, In: Atmospheric Chemistry and Physics. 20, 17, p. 10231-10258 28 p.Research output: Contribution to journal › Article › peer-review
Open Access
Press/Media
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Researchers study atmospheric aerosols and changing weather
10/10/00
1 Media contribution
Press/Media: Public Engagement Activities