Carl H. Key

Contact Info


Northern Rocky Mountain Science Center, Glacier Fi...
U.S. Geological Survey
West Glacier , MT 59936, United States

Publications in Fire Ecology

Ecological and Sampling Constraints on Defining Landscape Fire Severity
Pages: 34-59
DOI: 10.4996/fireecology.0202034

Ecological definition and detection of fire severity are influenced by factors of spatial resolution and timing. Resolution determines the aggregation of effects within a sampling unit or pixel (alpha variation), hence limiting the discernible ecological responses, and controlling the spatial patchiness of responses distributed throughout a burn (beta variation). As resolution decreases, alpha variation increases, extracting beta variation and complexity from the spatial model of the whole burn.  [Read More]

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Fire Frequency, Area Burned, and Severity: A Quantitative Approach to Defining a Normal Fire Year
Pages: 51-65
DOI: 10.4996/fireecology.0702051

Fire frequency, area burned, and fire severity are important attributes of a fire regime, but few studies have quantified the interrelationships among them in evaluating a fire year. Although area burned is often used to summarize a fire season, burned area may not be well correlated with either the number or ecological effect of fires. Using the Landsat data archive, we examined all 148 wildland fires (prescribed fires and wildfires) >40 ha from 1984 through 2009 for the portion of the Sierra Nevada centered on Yosemite National Park, California, USA.   [Read More]

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