Title:

Multi-scale analyses of wildland fire combustion processes: Large-scale field experiments – fire radiative power

Author(s):

Kremens, Robert L.; Gallagher, Michael R.; Clark, Kenneth L.; Mueller, Eric V.; Hadden, Rory M.; Heilman, Warren E.; Charney, Joseph J.; Hom, John L.; Campbell-Lochrie, Zakary J.; Walker-Ravena, Carlos; Everland, Alexis I.; Cole, Jason A.; Patterson, Matthew M.; Skowronski, Nicholas S.

Publication Year:

2023

How to Cite:

These data were collected using funding from the U.S. Government and can be used without additional permissions or fees. If you use these data in a publication, presentation, or other research product please use the citation below when citing the data product:

Kremens, Robert L.; Gallagher, Michael R.; Clark, Kenneth L.; Mueller, Eric V.; Hadden, Rory M.; Heilman, Warren E.; Charney, Joseph J.; Hom, John L.; Campbell-Lochrie, Zakary J.; Walker-Ravena, Carlos; Everland, Alexis I.; Cole, Jason A.; Patterson, Matthew M.; Skowronski, Nicholas S. 2023. Multi-scale analyses of wildland fire combustion processes: Large-scale field experiments – fire radiative power. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2022-0091

Abstract:

The United States Department of Defense (DoD) Strategic Environmental Research and Development Program (SERDP) funded project: Multi-scale Analyses of Wildland Fire Combustion Processes in Open-canopied Forests using Coupled and Iteratively Informed Laboratory-, Field-, and Model-based Approaches (RC-2641) conducted a large-scale (management-scale) field experiment during an operational prescribed burn to quantify how atmospheric dynamics across a wide range of spatial and temporal scales affect fire propagation, energy exchange, and fuel consumption. This experiment also provided an opportunity to fully examine how combustion related processes transfer across scales of particles and simple fuel beds in the laboratory, wind tunnel, small-scale, and operational prescribed burns as instrumentation used in small-scale field experiments was embedded in this experiment. In addition, the large-scale experiment also provides data necessary for simulation and model testing of coupled atmosphere-fire behavior prediction systems (e.g., WRF-SFire, WFDS, QUIC-Fire, FIRETEC) and coupled atmosphere-canopy-smoke dispersion prediction systems (e.g., ARPS-Canopy/FLEXPART). The large-scale field experiment includes data from a heavily instrumented ~12.1 hectare (ha) management-scale fire conducted at the Silas Little Experimental Forest in the Pinelands National Reserve (PNR) on March 13, 2019.

This data publication contains data collected in thirteen Krem Boxes (KB) that consisted of a dual band infrared (IR) radiometers and visible spectrum/long wave infrared camera pairs. The KB were scattered throughout the burn area at approximately 2 meters (m) above the ground pointed at the fuel beds. Data were collected at 1 hertz (Hz). The radiometric data were used to measure radiative heat fluxes, flame arrival times and persistence. In the same housing as the radiometer is a vertical flow instrument. This sensor did not produce any significant results, as the low-intensity fires in this experiment produced vertical flows lower than the threshold for detection. The visible spectrum cameras captured conventional RGB color-balanced images at 5m pixel resolution. The long wave infrared cameras captured 80 X 60 pixel images and was equipped with a neutral density filter to minimize saturation of this camera by the emission form the flames and hot background. The cameras are nearly spatially coincident and acquire images at the same time, and so can be aligned spatially and temporally.

Keywords:

fire behavior; fire spread; combustion; computational fluid dynamics; drag forces; fuel structure; heat fluxes; prescribed burn; radiant flux; fire radiant flux density; total radiant energy release; fire radiated energy density; air temperature; biota; climatologyMeteorologyAtmosphere; environment; Fire; Fire suppression, pre-suppression; Prescribed fire; Smoke; Wildland/urban interface; Silas Little Experimental Forest; New Jersey; Burlington County; Pinelands National Reserve; PNR; Pine Barrens; NJPB; Pinelands

Related publications:

• Gallagher, Michael R.; Skowronski, Nicholas S.; Hadden, Rory M.; Mueller, Eric V.; Clark, Kenneth L.; Campbell-Lochrie, Zakary J.; Walker-Ravena, Carlos; Kremens, Robert L.; Everland, Alexis I.; Patterson, Matthew M.; Cole, Jason A.; Heilman, Warren E.; Charney, Joseph J.; Bian, Xindi; Mell, William E.; Hom, John L.; Im, Seong-kyun; Kiefer, Michael T.; Zhong, Shiyuan; Simeoni, Albert J.; Rangwala, Ali; Di Cristina, Giovanni. 2022. Multi-scale analyses of wildland fire combustion processes: Small-scale field experiments - plot layout and documentation. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2022-0079
• Gallagher, Michael R.; Skowronski, Nicholas S.; Hadden, Rory M.; Mueller, Eric V.; Clark, Kenneth L.; Campbell-Lochrie, Zakary J.; Walker-Ravena, Carlos; Kremens, Robert L.; Everland, Alexis I.; Patterson, Matthew M.; Cole, Jason A.; Heilman, Warren E.; Charney, Joseph J.; Bian, Xindi; Mell, William E.; Hom, John L.; Im, Seong-kyun; Kiefer, Michael T.; Zhong, Shiyuan; Simeoni, Albert J.; Rangwala, Ali; Di Cristina, Giovanni; Sietz, Joseph. 2023. Multi-scale analyses of wildland fire combustion processes: Large-scale field experiments – burn layout and documentation. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2022-0089
• Kremens, Robert L.; Smith Alistair M. S.; Dickinson, Matthew B. 2010. Fire metrology: Current and future directions in physics-based measurements. Fire Ecology. 6(1): 13-35. https://doi.org/10.4996/fireecology.0601013 https://research.fs.usda.gov/treesearch/35012

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