Richard Gwozdz
Ph.D. Student
Fire & Mountain Ecology Lab
2006 - present
Phone: (206) 769-6808
Email: rgwozdz @ u.washington.edu
Degrees:
M.S., Environmental Science
Western Washington University
Bellingham, WA (2006)
B.S., Biology
Western Washington University
Bellingham, WA (2003)
Curriculum Vitae (Microsoft Word document)
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Project summary:
- Spatial variation in forest fuel moisture: comparisons of scale, and climatic variation.
Estimates of forest fuel moisture are provided at coarse scale and
consider only generally meteorological conditions (air
temperature, humidity, day length). At fine scales, air
temperature and humidity are likely to vary widely due to
elevation, aspect, terrain, shading, and forest canopy cover. I am
using a fine scale hydrology model to decompose coarse scale
meteorology over the topographically complex eastern Washington
Cascade Mountains to a grain of 90 meters. The National Fire
Danger Rating System (NFDRS) will be used to model fuel moisture
indices at 90 meters and a 3 hourly time step. Comparisons to
coarse spatial and temporal models will be made . I will also
explore the sensitivity of any patterns in spatial variation to
changes in climate.
- Probabilistic simulation of fire spread: coupling a percolation
model with spatially / temporally explicit weather, fuel, and
topographic data.
Physically based, deterministic models of fire spread (e.g.,
FARSITE) are difficult to implement over the long time periods and
large spatial extents required to examine fire regime change. Some
researchers have attempted to address this problem by building
simplified "percolation" models, where fire is passed across cells
of a gridded landscape. These models however are often decoupled
from synoptic weather events and instead depend on the general
climatic conditions in a given year. Thus, it may be difficult to
simulate realistic fire sizes and shapes as these are determined
by both fuel moistures and wind conditions. I will incorporate a
grid-based, 3 hourly weather stream into a percolation based model
of fire spread and attempt to simulate recent fire events in the
Okanogan Wenatchee National Forest.
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