Smart NASA sensors help fight wildfires

May 29, 2026

As wildfire activity intensifies across the United States, NASA researchers have introduced an innovative, low-cost thermal monitoring system designed to enhance firefighter safety. Developed through NASA's FireSense initiative, the new sensors are being installed on firefighting bulldozers to warn operators when heat levels from nearby wildfires become hazardous. Beyond protecting crews, the technology also helps scientists gather critical data about fire behavior beneath forest canopies.

In April, wildfire experts, researchers, and firefighters met in southern Alabama to showcase the new technology and discuss emerging challenges in wildfire management. The demonstration was part of an ongoing partnership between NASA and the Alabama Forestry Commission (AFC), focused on improving firefighter protection while advancing wildfire science.

According to Ian Brosnan, Wildland Fire Program Manager at NASA's Ames Research Center in California, ground-based observations play a crucial role in complementing satellite data. Understanding conditions on the ground allows researchers to better interpret what they observe from space and develop more effective wildfire response tools.

Protecting fire dozer Operators from extreme heat

Firefighters regularly rely on bulldozers—commonly known as fire dozers—to clear vegetation and construct firebreaks that help contain wildfires. Because these machines often operate only a short distance from active flames, operators face significant exposure to intense radiant heat.

The Alabama Forestry Commission is transitioning to enclosed-cab bulldozers known as "envirocabs." While these cabs provide greater protection from smoke and debris, they also limit an operator's ability to accurately judge dangerous heat levels outside the vehicle.

Ethan Barrett, Fire Analyst for the AFC, explained that excessive heat can damage a bulldozer's electrical systems before visible signs of danger become apparent. Melted wiring or electrical failures can disable equipment, potentially leaving operators stranded in hazardous conditions.

Simple technology with a big impact

To address this challenge, NASA engineers developed a straightforward and affordable thermal alert system using readily available components. The AFC specifically requested a solution that would be cost-effective, reliable, and easy for firefighters to use in the field.

Jennifer Fowler, Science Integration Manager for NASA's Wildland Fire Program at Langley Research Center, noted that the system utilizes commercial off-the-shelf technology. The temperature sensor, or thermocouple, is similar to those commonly found in ovens and industrial kilns.

The thermocouple is connected to an LED warning light mounted on the bulldozer dashboard. When surrounding temperatures exceed a safe threshold, the light begins flashing, instantly alerting the operator. The entire system runs on standard AA batteries, making installation and maintenance simple.

Ryan Wade, a research scientist with the University of Alabama in Huntsville and NASA FireSense, emphasized that the project's innovation lies in rapidly adapting existing technology to solve a real-world problem rather than creating entirely new hardware.

Successful field testing on wildfires and prescribed burns

The first thermal sensor was installed in September 2025, followed by a second unit in March 2026. Since deployment, the sensors have been tested during active wildfires and prescribed burns across Alabama.

According to AFC officials, the devices have consistently performed as intended, improving operator awareness and helping crews make safer decisions in dynamic fire environments. Encouraged by the positive results, the Alabama Forestry Commission is exploring plans to equip its entire bulldozer fleet with the technology.

Expanding NASA and Alabama forestry collaboration

The thermal sensor project represents the latest achievement in a growing collaboration between NASA and the Alabama Forestry Commission. Over the past year, NASA researchers have conducted training programs covering weather analysis and soil moisture monitoring while also partnering with AFC crews to evaluate airborne wildfire observation systems during active incidents.

Looking ahead, the organizations plan to integrate NASA's Fire Thermal InfraRed Spectrometer (FireTIRS), an advanced instrument capable of measuring fire temperature, spread rate, flame length, convection dynamics, and gas emissions.

Researchers are also evaluating additional equipment for fire dozers, including compact weather sensors and onboard cameras. These tools can provide valuable information about wind conditions, fire spread patterns, burn severity, fuel consumption, and vegetation impacts.

Building the future of wildfire prediction

Scientists believe that collecting comprehensive field data from active fires will significantly improve next-generation wildfire models. By combining satellite observations with detailed ground measurements, researchers can develop more accurate forecasting tools and provide firefighters with earlier warnings about changing fire conditions.

Fowler emphasized that these new datasets will help create advanced predictive systems capable of anticipating wildfire behavior with greater precision. For firefighters operating on the front lines, even a few extra minutes of warning can make a critical difference in protecting lives, equipment, and communities.

As wildfire threats continue to grow, NASA's FireSense technology demonstrates how practical, low-cost innovations can simultaneously improve firefighter safety and advance wildfire research.