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Wildfire Risk and Hazard - Procedures for the First Approximation (Paperback)
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Wildfire Risk and Hazard - Procedures for the First Approximation (Paperback)
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Loot Price R507
Discovery Miles 5 070
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Reviews have been conducted by Federal oversight agencies and blue
ribbon panels to identify causal factors of the unprecedented fire
suppression costs and to suggest possible modifications to Federal
fire management policy and strategies (USDOI, USDA 2004; USDAOIG
2006; GAO 2007, 2009). Agency and panel member reviews have found
that Federal agencies with wildland fire responsibilities are not
able to quantify the value of fire management activities in terms
of reducing wildfire risk to social, economic, and ecological
values. In response, the Wildland Fire Leadership Council's (WFLC)
monitoring strategy asked: What are the trends and changes in fire
hazard on Federal lands? Fire risk assessment requires an
understanding of the likelihood of wildfire by intensity level and
the potential beneficial and negative effects to valued resources
from fire at different intensity levels. This monitoring study was
conducted to meet three broad goals: (1) address the WFLC
monitoring question regarding fire hazard on Federal lands; (2)
develop information useful in prioritizing where fuels treatments
and mitigation measures might be proposed to address significant
fire hazard and risk; and (3) respond to critiques by Office of
Management and Budget, General Accounting Office, and Congress that
call for risk-based performance measures to document the
effectiveness of fire management programs. The results of this
monitoring study are useful for project planning to quantify the
potential effects of proposed actions in terms of reducing risk to
specific resources of concern. Developing decision support tools
that utilize an appropriate risk management framework would address
many of the issues identified within government oversight reports.
Specifically, the Office of Inspector General (USDAOIG 2006)
reviewed USDA Forest Service (FS) large fire costs and directed
that the "FS must determine what types of data it needs to track in
order to evaluate its cost effectiveness in relationship to its
accomplishments. At a minimum, FS needs to quantify and track the
number and type of isolated residences and other privately owned
structures affected by the fire, the number and type of
natural/cultural resources threatened, and the communities and
critical infrastructure placed at risk." The application of fire
risk and fire hazard analyses has been demonstrated at the
watershed and National Forest scales (Ager and others 2007). There,
specific details regarding probabilities of fire and fire intensity
are linked with specific resource benefit and loss functions (Ager
and others 2007). Expanding these detailed analyses to regional and
national scales to provide consistent risk assessment processes is
complicated by the required data specificity and difficulty in
developing loss-benefit functions for the range of human and
ecological values. The research effort described in this report is
designed to develop, from a strategic view, a first approximation
of how both fire likelihood and intensity influence risk to social,
economic, and ecological values at the national scale. The approach
uses a quantitative risk framework that approximates expected
losses and benefits from wildfire to highly valued resources (HVR).
The information gathered in this study can be summarized in tabular
and map formats at many different scales using administrative
boundaries or delineations of HVR such as built structure density.
The overall purpose of the analysis is to provide a base line of
current conditions for monitoring trends in wildfire risk over
time. Future analyses would be used to determine trends and changes
in response to fuel reduction investments, climate shifts, and
natural disturbance events (e.g., bark beetles) between the
timeframes analyzed. Monitoring data could be used to address
national and regional questions regarding changes in fire risk and
hazard as a result of investment strategies or changing conditions.
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