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Journal of the International Association of Wildland Fire
RESEARCH ARTICLE

The FireFlux II experiment: a model-guided field experiment to improve understanding of fire–atmosphere interactions and fire spread

Craig B. Clements A L , Adam K. Kochanski B , Daisuke Seto A , Braniff Davis A , Christopher Camacho A , Neil P. Lareau A , Jonathan Contezac A , Joseph Restaino C , Warren E. Heilman D , Steven K. Krueger B , Bret Butler E , Roger D. Ottmar F , Robert Vihnanek F , James Flynn G , Jean-Baptiste Filippi H , Toussaint Barboni H , Dianne E. Hall A , Jan Mandel I , Mary Ann Jenkins B , Joseph O'Brien J , Ben Hornsby J and Casey Teske K
+ Author Affiliations
- Author Affiliations

A Fire Weather Research Laboratory, Department of Meteorology and Climate Science, San José State University, San José, CA 95192, USA.

B Department of Atmospheric Sciences, University of Utah, Salt Lake City, UT 84112, USA.

C School of Environmental and Forest Sciences, University of Washington, Seattle, WA 98195, USA.

D USDA Forest Service Northern Research Station, Lansing, MI 48910, USA.

E USDA Forest Service, Fire Sciences Laboratory, Missoula, MT 59808, USA.

F USDA Forest Service Pacific Northwest Research Station, Seattle, WA 98103, USA.

G Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX 77204, USA.

H University of Corsica, 20250 Corte, France.

I Department of Mathematical and Statistical Sciences, University of Colorado Denver, Denver, CO 80204, USA.

J USDA Forest Service, Southern Research Station, Athens, GA 30602, USA.

K University of Montana, Missoula, MT 59812, USA.

L Corresponding author. Email: craig.clements@sjsu.edu

International Journal of Wildland Fire 28(4) 308-326 https://doi.org/10.1071/WF18089
Submitted: 26 January 2018  Accepted: 4 January 2019   Published: 23 April 2019

Abstract

The FireFlux II experiment was conducted in a tall grass prairie located in south-east Texas on 30 January 2013 under a regional burn ban and high fire danger conditions. The goal of the experiment was to better understand micrometeorological aspects of fire spread. The experimental design was guided by the use of a coupled fire–atmosphere model that predicted the fire spread in advance. Preliminary results show that after ignition, a surface pressure perturbation formed and strengthened as the fire front and plume developed, causing an increase in wind velocity at the fire front. The fire-induced winds advected hot combustion gases forward and downwind of the fire front that resulted in acceleration of air through the flame front. Overall, the experiment collected a large set of micrometeorological, air chemistry and fire behaviour data that may provide a comprehensive dataset for evaluating and testing coupled fire–atmosphere model systems.


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