Jay D. Miller

Contact Info


Pacific Southwest Region, Fire and Aviation Management
USDA Forest Service
3237 Peacekeeper Way, Suite 101
McClellan, California 95652, USA

Publications in Fire Ecology

Trends in Wildfire Severity: 1984 to 2010 in the Sierra Nevada, Modoc Plateau, and Southern Cascades, California, USA
Pages: 41-57
DOI: 10.4996/fireecology.0803041

Data from recent assessments indicate that the annual area of wildfires burning at high severity (where most trees are killed) has increased since 1984 across much of the southwestern United States.  [Read More]

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Calibration and Validation of Immediate Post-Fire Satellite-Derived Data to Three Severity Metrics
Pages: 12-30
DOI: 10.4996/fireecology.1102012

Since 2007, the USDA Forest Service’s Remote Sensing Applications Center (RSAC) has been producing fire severity data within the first 30 to 45 days after wildfire containment (i.e., initial assessments [IA]), for wildfires that occur on USDA Forest Service managed lands, to support post-fire management actions.  Satellite image-derived map products are produced using calibrations of the relativized differenced normalized burn ratio (RdNBR) to the Composite Burn Index (CBI), percent change in tree basal area (BA), and percent change in canopy cover (CC).  [Read More]

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Patterns and Trends in Burned Area and Fire Severity from 1984 to 2010 in the Sierra De San Pedro Mártir, Baja California, Mexico
Pages: 52-72
DOI: 10.4996/fireecology.1201052

Yellow pine (Pinus spp. L.) and mixed conifer (YPMC) forests of California, USA (Alta California), have been negatively affected since Euro-American settlement by a century or more of logging, fire exclusion, and other human activities.  The YPMC forests in northwestern Mexico (northern Baja California) are found in the same climate zone as those of Alta California and support mostly the same dominant species, yet they are much less degraded, having suffered little logging and only 30 years of fire suppression.  [Read More]

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Relating Fire-Caused Change in Forest Structure to Remotely Sensed Estimates of Fire Severity
Pages: 99-116
DOI: 10.4996/fireecology.1203099

Fire severity maps are an important tool for understanding fire effects on a landscape. The relative differenced normalized burn ratio (RdNBR) is a commonly used severity index in California forests, and is typically divided into four categories: unchanged, low, moderate, and high. RdNBR is often calculated twice—from images collected the year of the fire (initial assessment) and during the summer of the year after the fire (extended assessment).  [Read More]

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Corroborating Evidence of a Pre-Euro-American Low- to Moderate-Severity Fire Regime in Yellow Pine–Mixed Conifer Forests of the Sierra Nevada, California, USA
Pages: 58-90
DOI: 10.4996/fireecology.1301058

Fire was the dominant ecological process controlling forest structure and succession in western North American conifer forests for thousands of years. Because fires are now suppressed, and because widespread logging has greatly altered vegetation structure, land managers often use estimates of pre-Euro-American settlement forest conditions to help guide restoration actions. It follows that it is important to fully understand the characteristics of pre-Euro-American settlement fire regimes.  [Read More]

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