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I remember the first brushfire I ever responded to, as a mutual aid assignment. I was very young and very new. We could see the smoke for miles before we got there. Thick and black, it covered a good portion of the horizon. This was “the big one,” or so I thought.
I remember approaching several acres (yes, several acres, as in two or three acres, which was “big” to me at the time) of wooded grassland. The department on scene handed me what amounted to a mud flap from a large truck bolted to a stick. “Here, you’ll need this,” were the instructions received from the chief on scene, and I distinctly remember thinking, “You want me to attack that with this?”
But I am not talking about that kind of fire. I am talking about the kind that you see on the news. We have all seen the stories on TV showing our forest land engulfed in flames. From June through October, not a day goes by when we don’t see or read something about wildland fires. Battling from the air or the ground, fighting fires that often spread across thousands of acres requires many years of training, practice and dedication.
Let me be the first to say I do not understand wildland/forestry firefighters. It takes a special breed of folks, equipped with only a few bottles of water and a small shovel, to look at a mountain of flames engulfing acres of land and think, “Yep, I can lick that!” I don’t understand the desire to hike for miles over rugged terrain carrying 50-plus pounds of gear just to get to the spot where you will go to work, then working for hours to clear the line and hoping Mother Nature does not turn her wind-driven attention in your direction – and, if she does, relying on your ability to be a nimble and a small foil tent to protect you. I may not totally understand these firefighters, but I don’t need to understand them to have a huge amount of respect for them and what they do.
Thermal imaging’s role
The challenges of wildland firefighting are unique, and the adoption of technology to solve these problems is also unique. The wildland firefighter has brought much to the table in terms of solutions, including the Incident Management System (IMS), weather monitoring, communications solutions, the global positioning system (GPS) and many others. Thermal imaging is also a technology becoming more prevalent in fighting wildland fires. Thermal imaging can enhance firefighter safety in the air and on the ground, as well as help crews more effectively monitor fire conditions, place personnel in key areas to create control lines and improve the development and control of prescribed burns.
Just spend a few minutes talking to firefighters who battle these fires every day and you will quickly learn how critical the use of thermal imaging is. The Garden Valley Helitack Crew in Idaho consists of 12 firefighters and provides aerial protection to the 2.2 million acres (an area roughly twice the size of Rhode Island) of Boise National Forest. This crew has been using thermal imagers for more than eight years.
I recently talked with the crew’s manager, who shared his insight for using thermal imagers to fight wildland fires. Using a thermal imager (TI) gives members of his crew added reassurance that they are not missing hot spots that could prove a threat. With a thermal imager, the fire’s location and progress can be viewed from an aerial position, regardless of daylight or smoke conditions. This enables precise monitoring of fire progress that would not otherwise be possible. When a hot spot is pinpointed from the air, two to four members of the Helitack Crew are deployed to contain the fire from the ground using a thermal imager. With the TI, accurate assessment of the fire and its spread can be obtained regardless of smoke conditions.