24 Rapid Deployment to Wildfires 2 (RaDFIRE2): Understanding Plume Dynamics and Fire Behavior Interactions

Tuesday, 26 June 2018
New Mexico/Santa Fe Room/Portal (La Fonda on the Plaza)
Craig B. Clements, San Jose State University, San Jose, CA; and N. P. Lareau, D. E. Kingsmill, and A. K. Kochanski

This presentation will provide an overview of the second Rapid Deployments to Wildfires (RaDFIRE2) experiment, proposed to operate during July-September 2019 out of Boise, ID. RaDFIRE2 is designed to advance understanding of the fire-atmosphere interactions contributing to rapid wildfire growth, with a focus on examining the poorly understood couplings amongst wildfire convective plumes, fire-induced winds, and fire behavior during rapidly expanding wildfires. These objectives will be accomplished by observing the co-evolution of fire and atmospheric processes using a combination of airborne and ground based radars, lidars, and thermal imaging systems. A rapid-response sampling strategy will be employed whereby access to fires will be facilitated by the research team's experience integrating with federal and state fire management teams. Sampling will span a range of fire behaviors and atmospheric conditions. These observations along with numerical simulations from WRF-SFIRE will be used to address the following scientific questions:
  1. What are the links between ambient meteorology, fire behavior, and plume rise dynamics?
  2. What controls the strength of fire-induced inflows and what affect do these inflows have on fire propagation and plume dynamics?
  3. What determines the vertical extent of pyrocumulus, and what impact do these pyro-clouds have on fire behavior?
  4. What physical processes govern entrainment and detrainment in wildfire convective plumes?
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