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Fire History

Displaying 1 - 10 of 105

Ladder fuels rather than canopy volumes consistently predict wildfire severity even in extreme topographic-weather conditions

Year of Publication
2024
Publication Type

Drivers of forest wildfire severity include fuels, topography and weather. However, because only fuels can be actively managed, quantifying their effects on severity has become an urgent research priority. Here we employed GEDI spaceborne lidar to consistently assess how pre-fire forest fuel structure affected wildfire severity across 42 California wildfires between 2019–2021.

Exploring the use of satellite Earth observation active wildland fire hotspot data via open access web platforms

Year of Publication
2024
Publication Type

Globally, managing wildland fire is increasing in complexity. Satellite Earth Observation (EO) data, specifically active fire ‘hotspot’ data, is often used to inform wildland fire management. This study explores hotspot data usage via web traffic data (‘user counts’) for the FIRMS, GWIS and EFFIS web portals between September 2019 and April 2023.

The fastest-growing and most destructive fires in the US (2001 to 2020)

Year of Publication
2024
Publication Type

The most destructive and deadly wildfires in US history were also fast. Using satellite data, we analyzed the daily growth rates of more than 60,000 fires from 2001 to 2020 across the contiguous US. Nearly half of the ecoregions experienced destructive fast fires that grew more than 1620 hectares in 1 day.

Contemporary fires are less frequent but more severe in dry conifer forests of the southwestern United States

Year of Publication
2024
Publication Type

Wildfires in the southwestern United States are increasingly frequent and severe, but whether these trends exceed historical norms remains contested. Here we combine dendroecological records, satellite-derived burn severity, and field measured tree mortality to compare historical (1700-1880) and contemporary (1985-2020) fire regimes at tree-ring fire-scar sites in Arizona and New Mexico.