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Exploiting remotely sensed data to better understand fire behavior and effects

Status: 
Complete
Dates: 
October, 2013 to September, 2014

The goal of this study was to better understand fire behavior and effects using remotely sensed data.

remote sensing
Image of MODIS instrument and example of remote data display / NASA

This study had two components:

  1. First, we developed methods for generating spatially continuous fire progression maps using MODIS fire-detection satellite data. 

  2. Second, we developed and evaluated a new satellite-inferred burn severity metric.

 

 

Key Findings

The methods we developed provide a viable option for producing day-of-burning data where agency-generated fire progression maps are of poor quality or unavailable. Used in conjunction with data from weather stations, this method will help researchers from varied disciplines to evaluate the influence of observed daily weather on observed fire-related effects (e.g., smoke productions, carbon emissions, and burn severity) over large landscapes and over large numbers of fires. In fact, this method has already been successfully incorporated into other fire studies, including one that quantified the influence of weather on fire spread.

The relativized burn ratio (RBR) is a Landsat-based burn severity metric that is an alternative to both dNBR (normalized burn ratio algorithim) and RdNBR (relative form of normalized burn ratio algorithim). The correspondence between RBR and field-based measures of burn severity indicates an improvement over dNBR and RdNBR. Given the number of fires analyzed in this study and the large geographic extent, we demonstrated that RBR is a robust metric for measuring and classifying burn severity over a broad range of fire-regime types. As such, the use of RBR should help facilitate the description and study of burn severity patterns, as well as their drivers and consequences in forests like those of the conterminous western US.

Publications



National Strategic Program Areas: 
Wildland Fire and Fuels
National Priority Research Areas: 
Forest Disturbances
RMRS Science Program Areas: 
Aldo Leopold Wilderness Research Institute
RMRS Strategic Priorities: 
Disturbance Ecology; Fire Sciences
Geography: 
National
Project Contact: 

Principal Investigators:
Collaborators: