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Small-scale Fire Behavior Measurements in the Field: Bridging the Gap Between the Laboratory and Management-scale Prescribed Fires

Date: June 12, 2018
Presenter(s): Inga P. La Puma
Description: To provide a better understanding of combustion processes and fire behavior during planned wildland fires across spatial scales, we conducted 12 intensively-instrumented experiments on replicated 100 m2 plots, contrasting cool, dormant season vs. warm, growing season conditions, and natural vs. augmented fuel loads. Instrumentation consisted of a network of IR cameras, dense arrays of thermocouples, 18 sonic anemometers to measure turbulence and heat fluxes at multiple heights, and high speed pressure sensors. Some key processes are consistent across scales; for example, thermocouple temperature profiles and relationships between turbulence and heat fluxes measured during the 100 m2 plot burns reflect the inflow of cool air into fire fronts measured in laboratory experiments and patterns of turbulence and heat fluxes measured in large-scale field burns, while other phenomena can be considered “emergent properties” that occur only larger scales.
Topic(s): Fire Behavior
Ecosystem(s): None
Type: Webinar
NRFSN number: 17983
FRAMES RCS number: 56064
Record updated: Jul 16, 2018