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An Overview of the Monitoring Trends in Burn Severity (MTBS) Project and Field-Based Burn Severity Assessment
Monitoring Trends in Burn Severity (MTBS) Project.
April 7, 2011.
Monitoring Trends in Burn Severity (MTBS) is a multi-year, interagency
project designed to consistently map the location, extent and associated
burn severity of large fires occurring on all lands of the United
States from 1984 to present. The suite of mapping, data and analysis products
facilitated by the project are derived from satellite data using image
processing and analysis techniques established by the USGS and USFS. These
products provide a continuous record of burn severity trends to assess
the effectiveness of national fire management policies, and also offer
essential and consistently derived geospatial data that meet several agency
and interagency resource management application needs.
Ground-based assessments of burn severity, such as the Composite Burn
Index (CBI), can be used to both establish severity class thresholds and
validate burn severity information mapped using satellite data. Due to
the lack of temporally and spatially consistent field data throughout
the data record, MTBS burn severity products are not currently validated.
However, available CBI data can be used to validate and/or calibrate burn
severity thresholds for recent and future fire events occurring in similar
biophysical settings.
The objective of this presentation is to provide users with an overview
of the MTBS project, and how to access and appropriately use MTBS data
and products. The presentation will also include a general discussion
on how CBI field data are acquired and may be contributed to a national
CBI database using FFI. An additional brief discussion will summarize
the procedure of using CBI data to validate MTBS thematic burn severity
data products and establish thresholds to classify continuous burn severity
index data into categorical burn severity classes.
For more information about MTBS click here (http://mtbs.gov/)