Derek Day
Derek Day
Research Associate III, NPS
Office: CIRA, Rm 006, Fort Collins
Phone: (970) 491-8354
Fax: (970) 491-8598
Email:
Mailing Address:
Derek Day
Cooperative Institute for Research in the Atmosphere
Colorado State University
1375 Campus Delivery
Fort Collins, CO 80523-1375
Biography

Derek Day received BS and MS degrees in 1990 and 1992 respectively from Northern Arizona University. Both degrees were related to chemistry and environmental science. My areas of interest include the formation, transport, and impacts of ambient aerosols. I’ve worked at CIRA since 1992 and been involved in several large field campaigns at national parks investigating the physical, chemical, and optical properties of ambient aerosols. My particular area of expertise is aerosol light scattering as a function of relative humidity.

Recent Work

Hygroscopicity of aerosol generated from burning two different forest fire fuels

Figure

 Above: The above figure shows data from smoke aerosols. The left hand plots show relative chemical composition from electron microscopy, while the right hand plots show aerosol particle growth as a function of humidity as measured by nephelometry. Note the top set of plots depict a non-hygroscopic aerosol dominated by carbon, while the lower set of plots show an aerosol which takes up significant water and is composed of significant quantities of inorganic species. In this study we have shown that aerosol water uptake is dominated by the inorganic component of smoke aerosols.

Selected Publications

Humidification factors from laboratory studies of fresh smoke from biomass fuels, D. E. Day, J. L. Hand, C. M. Carrico, Guenter Engling, and W. C. Malm, JGR, VOL. 111, D22202, doi:10.1029/2006JD007221, 2006.
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