Thesis
Production and evaluation of smoke emission coefficients from modis measurements of fire radiative power in the United States
Washington State University
Master of Science (MS), Washington State University
2013
Handle:
https://hdl.handle.net/2376/103230
Abstract
Previous studies calculating smoke emission coefficients (Ce) from the correlation between fire radiative energy (FRE) and PM mass emission rates derived from aerosol optical thickness (AOT) measurements from the Moderate Resolution Imaging Spectroradiometer (MODIS) for wildland fires in the contiguous United States yielded poor correlation coefficients. Estimates of Ce, in kilograms per megajoule, were developed to utilize the direct linear relationship between MODIS-derived rates of release of fire radiant energy and the rate of release of smoke aerosols. To improve these smoke emission coefficients, the method for calculating Ce was modified to exclude fire pixel detections with scan angles greater than ±40o and to eliminate FRE and AOT retrievals that contained a cloud fraction greater than zero. This modified method was applied each year from 2003 to 2008 for the contiguous U.S., six regions, and thirteen land cover types. The average Ce for the U.S. was found to be 0.0193, ranged from 0.0092 to 0.0357 for the six regions, and from 0.0082 to 0.0435 for the thirteen land cover types. Average correlation coefficient values improved significantly from the previous studies. Uncertainties still remain as annual variability and outliers related to high FRE measurements are prevalent
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Details
- Title
- Production and evaluation of smoke emission coefficients from modis measurements of fire radiative power in the United States
- Creators
- Andrew Pheiffer Rengel
- Contributors
- Fok-Yan Leung (Degree Supervisor)
- Awarding Institution
- Washington State University
- Academic Unit
- Civil and Environmental Engineering, Department of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; [Pullman, Washington] :
- Identifiers
- 99900525082701842
- Language
- English
- Resource Type
- Thesis