Spectral Assessment of Vegetational Recovery Following the Owyhee Mountains' 2015 Soda Fire
KeywordsNormalized Burn Ratio (NBR)
Normalized Difference Vegetation Index (NDVI)
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PublisherThe University of Arizona.
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AbstractBetween August 10 and August 23, 2015, the Soda Fire burned 279,144 acres of the sagebrush steppe ecosystem in Idaho’s Owyhee and Oregon’s Malheur counties, southwest of Idaho’s capital, Boise. This project attempts to examine, visualize, and explain the impacts of this fire on the sagebrush steppe, while demonstrating the need for boots-on-the-ground perspective to give context to spectral analyses like those used in this study. The dNBR analysis shows a largely net-neutral or positive change in vegetation in comparison to pre-fire values with a mean value of -0.02. An NDVI analysis of 2018 values showed an 11% increase in vegetation health over pre-fire values, while an analysis of values in 2020 showed a 17% increase over pre-fire values.