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By NASA
5 Min Read NASA Tests Drones to Provide Micrometeorology, Aid in Fire Response
Pilot in command Brayden Chamberlain performs pre-flight checks on the NASA Alta X quadcopter during the FireSense uncrewed aerial system (UAS) technology demonstration in Missoula.<p class="MsoNormal" style="margin: 0in;font-size: 12pt;font-family: Aptos, sans-serif"><span style="font-size: 10pt;font-family: Arial, sans-serif"><span class="msoIns" style="color: teal"><ins cite="mailto:Tabor,%20Abby%20(ARC-DO)" datetime="2025-02-11T16:38"></ins></span></span></p> Credits: NASA/Milan Loiacono In Aug. 2024, a team of NASA researchers and partners gathered in Missoula, to test new drone-based technology for localized forecasting, or micrometeorology. Researchers attached wind sensors to a drone, NASA’s Alta X quadcopter, aiming to provide precise and sustainable meteorological data to help predict fire behavior.
Wildfires are increasing in number and severity around the world, including the United States, and wind is a major factor. It leads to unexpected and unpredictable fire growth, public threats, and fire fatalities, making micrometeorology a very effective tool to combat fire.
This composite image shows the NASA Alta X quadcopter taking off during one of eight flights it performed for the 2024 FireSense UAS technology demonstration in Missoula. Mounted on top of the drone is a unique infrastructure designed at NASA’s Langley Research Center in Hampton,Virginia, to carry sensors that measure wind speed and direction into the sky. On the ground, UAS pilot in command Brayden Chamberlain performs final pre-flight checks. NASA/Milan Loiacono The campaign was run by NASA’s FireSense project, focused on addressing challenges in wildland fire management by putting NASA science and technology in the hands of operational agencies.
“Ensuring that the new technology will be easily adoptable by operational agencies such as the U.S. Forest Service and the National Weather Service was another primary goal of the campaign,” said Jacqueline Shuman, FireSense project scientist at NASA’s Ames Research Center in California’s Silicon Valley.
The FireSense team chose the Alta X drone because the U.S. Forest Service already has a fleet of the quadcopters and trained drone pilots, which could make integrating the needed sensors – and the accompanying infrastructure – much easier and more cost-effective for the agency.
The UAS pilot in command, Brayden Chamberlain, flashes a “good to go” signal to the command tent, indicating that the NASA Alta X quadcopter is prepped for takeoff. Behind Chamberlain, the custom structure attached to the quadcopter holds a radiosonde (small white box) and an anemometer (hidden from view), which will collect data on wind speed and direction, humidity, temperature, and pressure.NASA/Milan Loiacono The choice of the two sensors for the drone’s payload was also driven by their adoptability.
The first, called a radiosonde, measures wind direction and speed, humidity, temperature, and pressure, and is used daily by the National Weather Service. The other sensor, an anemometer, measures wind speed and direction, and is used at weather stations and airports around the world.
The two sensors mounted on the NASA Alta X quadcopter are a radiosonde (left) and an anemometer (right), which measure wind speed and direction. The FireSense teams hopes that by giving them wings, researchers can enable micrometeorology to better predict fire and smoke behavior. NASA/Milan Loiacono
“Anemometers are everywhere, but are usually stationary,” said Robert McSwain, the FireSense uncrewed aerial system (UAS) lead, based at NASA’s Langley Research Center in Hampton, Virginia. “We are taking a sensor type that is already used all over the world, and giving it wings.”
Anemometers are everywhere, but are usually stationary. We are taking a sensor type that is already used all over the world, and giving it wings.
Robert Mcswain
FireSense Uncrewed Aerial System (UAS) Lead
Both sensors create datasets that are already familiar to meteorologists worldwide, which opens up the potential applications of the platform.
Current Forecasting Methods: Weather Balloons
Traditionally, global weather forecasting data is gathered by attaching a radiosonde to a weather balloon and releasing it into the air. This system works well for regional weather forecasts. But the rapidly changing environment of wildland fire requires more recurrent, pinpointed forecasts to accurately predict fire behavior. It’s the perfect niche for a drone.
Left: Steven Stratham (right) attaches a radiosonde to the string of a weather balloon as teammates Travis Christopher (left) and Danny Johnson (center) prepare the balloon for launch. This team of three from Salish Kootenai College is one of many college teams across the nation trained to prepare and launch weather balloons.
Right: One of these weather balloons lifts into the sky, with the radiosonde visible at the end of the string. NASA/Milan Loiacono “These drones are not meant to replace the weather balloons,” said Jennifer Fowler, FireSense’s project manager at Langley. “The goal is to create a drop-in solution to get more frequent, localized data for wildfires – not to replace all weather forecasting.”
The goal is to create a drop-in solution to get more frequent, localized data for wildfires – not to replace all weather forecasting.
Jennifer Fowler
FireSense Project Manager
Drones Provide Control, Repeat Testing, Sustainability
Drones can be piloted to keep making measurements over a precise location – an on-site forecaster could fly one every couple of hours as conditions change – and gather timely data to help determine how weather will impact the direction and speed of a fire.
Fire crews on the ground may need this information to make quick decisions about where to deploy firefighters and resources, draw fire lines, and protect nearby communities.
A reusable platform, like a drone, also reduces the financial and environmental impact of forecasting flights.
“A weather balloon is going to be a one-off, and the attached sensor won’t be recovered,” Fowler said. “The instrumented drone, on the other hand, can be flown repeatedly.”
The NASA Alta X quadcopter sits in a field in Missoula, outfitted with a special structure to carry a radiosonde (sensor on the left) and an anemometer (sensor on the right) into the air. This structure was engineered at NASA’s Langley Research Center to ensure the sensors are far enough from the rotors to avoid interfering with the data collected, but without compromising the stability of the drone.NASA/Milan Loiacono
The Missoula Campaign
Before such technology can be sent out to a fire, it needs to be tested. That’s what the FireSense team did this summer.
Smoke from the nearby Miller Peak Fire drifts by the air control tower at Missoula Airport on August 29, 2024. Miller Peak was one of several fires burning in and around Missoula that month, creating a smokey environment which, combined with the mountainous terrain, made the area an ideal location to test FireSense’s new micrometeorology technology.NASA/Milan Loiacono McSwain described the conditions in Missoula as an “alignment of stars” for the research: the complex mountain terrain produces erratic, historically unpredictable winds, and the sparsity of monitoring instruments on the ground makes weather forecasting very difficult. During the three-day campaign, several fires burned nearby, which allowed researchers to test how the drones performed in smokey conditions.
A drone team out of NASA Langley conducted eight data-collection flights in Missoula. Before each drone flight, student teams from the University of Idaho in Moscow, Idaho, and Salish Kootenai College in Pablo, Montana, launched a weather balloon carrying the same type of radiometer.
Left: Weather balloon teams from University of Idaho and Salish Kootenai College prepare a weather balloon for launch on the second day of the FireSense campaign in Missoula.
Right: NASA Langley drone crew members Todd Ferrante (left) and Brayden Chamberlain (right) calibrate the internal sensors of the NASA Alta X quadcopter before its first test flight on Aug. 27, 2024. Once those data sets were created, they needed to be transformed into a usable format. Meteorologists are used to the numbers, but incident commanders on an active fire need to see the data in a form that allows them to quickly understand which conditions are changing, and how. That’s where data visualization partners come in. For the Missoula campaign, teams from MITRE, NVIDIA, and Esri joined NASA in the field.
An early data visualization from the Esri team shows the flight paths of weather balloons launched on the first day of the FireSense UAS technology demonstration in Missoula. The paths are color-coded by wind speed, from purple (low wind) to bright yellow (high wind).NASA/Milan Loiacono Measurements from both the balloon and the drone platforms were immediately sent to the on-site data teams. The MITRE team, together with NVIDIA, tested high-resolution artificial intelligence meteorological models, while the Esri team created comprehensive visualizations of flight paths, temperatures, and wind speed and direction. These visual representations of the data make conclusions more immediately apparent to non-meteorologists.
What’s Next?
Development of drone capabilities for fire monitoring didn’t begin in Missoula, and it won’t end there.
“This campaign leveraged almost a decade of research, development, engineering, and testing,” said McSwain. “We have built up a UAS flight capability that can now be used across NASA.”
This campaign leveraged almost a decade of research, development, engineering, and testing. We have built up a UAS flight capability that can now be used across NASA.
Robert Mcswain
FireSense Uncrewed Aerial System (UAS) Lead
The NASA Alta X and its sensor payload will head to Alabama and Florida in spring 2025, incorporating improvements identified in Montana. There, the team will perform another technology demonstration with wildland fire managers from a different region.
To view more photos from the FireSense campaign visit: https://nasa.gov/firesense
The FireSense project is led by NASA Headquarters in Washington and sits within the Wildland Fires program, with the project office based at NASA Ames. The goal of FireSense is to transition Earth science and technological capabilities to operational wildland fire management agencies, to address challenges in U.S. wildland fire management before, during, and after a fire.
About the Author
Milan Loiacono
Science Communication SpecialistMilan Loiacono is a science communication specialist for the Earth Science Division at NASA Ames Research Center.
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Last Updated Feb 13, 2025 Related Terms
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NASA’s Artemis campaign will send astronauts, payloads, and science experiments into deep space on NASA’s SLS (Space Launch System) super heavy-lift Moon rocket. Starting with Artemis IV, the Orion spacecraft and its astronauts will be joined by other payloads atop an upgraded version of the SLS, called Block 1B. SLS Block 1B will deliver initial elements of a lunar space station designed to enable long term exploration of the lunar surface and pave the way for future journeys to Mars. To fly these advanced payloads, engineers at NASA’s Marshall Space Flight Center in Huntsville, Alabama, are building a cone-shaped adapter that is key to SLS Block 1B.
At NASA Marshall, the PLA engineering development unit is installed into the 4697-test stand for structural testing. It was then attached to the large cylindrical structure which simulates the Exploration Upper Stage interface. Load lines were then connected to the top of the PLA. The testing demonstrated that it can handle up to three times the expected load.NASA/Samuel Lott The payload adapter, nestled within the universal stage adapter sitting atop the SLS Block 1B’s exploration upper stage, acts as a connecting point to secure a large payload that is co-manifested – or flying along with – the Orion spacecraft. The adapter consists of eight composite panels with an aluminum honeycomb core and two aluminum rings.
Beginning with the Artemis IV mission, SLS Block 1B will feature a new, more powerful upper stage that provides a substantial increase in payload mass, volume, and energy over the first variant of the rocket that is launching Artemis missions I through III. SLS Block 1B can send 84,000 pounds of payload – including both a crewed Orion spacecraft and a 10-metric ton (22,046 lbs.) co-manifested payload riding in a separate cargo compartment – to the Moon in a single launch.
Artemis IV’s co-manifested payload will be the Lunar I-Hab, one of the initial elements of the Gateway lunar space station. Built by ESA (European Space Agency), the Lunar I-Hab provides expanded capability for astronauts to live, work, conduct science experiments, and prepare for their missions to the lunar surface.
Before the Artemis IV mission structure was finalized, NASA engineers needed to design and test the new payload adapter.
“With SLS, there’s an intent to have as much commonality between flights as possible,” says Brent Gaddes, Lead for the Orion Stage Adapter and Payload Adapter in the SLS Spacecraft/Payload Integration & Evolution Office at NASA Marshall.
However, with those payloads changing typically every flight, the connecting payload adapter must change as well.
“We knew there needed to be a lot of flexibility to the payload adapter, and that we needed to be able to respond quickly in-house once the payloads were finalized,” says Gaddes.
Working alongside the robots, NASA’s next generation of engineers are learning from experts with decades of manufacturing expertise as they prepare the metal honeycomb structure substrate. During production, the fingerprints of the engineers are imprinted where metal meets composite. Even after the finishing touches are applied, the right light at the right angle reveals the harmless prints of the adapter’s makers as it launches payloads on SLS that will enable countless discoveries.NASA/Samuel Lott A Flexible Approach
The required flexibility was not going to be satisfied with a one-size-fits-all approach, according to Gaddes.
Since different size payload adapters could be needed, Marshall is using a flexible approach to assemble the payload adapter that eliminates the need for heavy and expensive tooling used to hold the parts in place during assembly. A computer model of each completed part is created using a process called structured light scanning. The computer model provides the precise locations where holes need to be drilled to hold the parts together so that the completed payload adapter will be exactly the right size.
“Structured light has helped us reduce costs and increase flexibility on the payload adapter and allows us to pivot,” says Gaddes. “If the call came down to build a cargo version of SLS to launch 40 metric tons, for example, we can use our same tooling with the structured light approach to adapt to different sizes, whether that’s for an adapter with a larger diameter that’s shorter, or one with a smaller diameter that’s longer. It’s faster and cheaper.”
NASA Marshall engineers use an automated placement robot to manufacture eight lightweight composite panels from a graphite epoxy material. The robot performs fast, accurate lamination following preprogrammed paths, its high speed and precision resulting in lower cost and significantly faster production than other manufacturing methods.
At NASA Marshall, an engineering development unit of the payload has been successfully tested which demonstrated that it can handle up to three times the expected load. Another test version currently in development, called the qualification unit, will also be tested to NASA standards for composite structures to ensure that the flight unit will perform as expected.
“The payload adapter is shaped like a cone, and historically, most of the development work on structures like this has been on cylinders, so that’s one of the many reasons why testing it is so important,” says Gaddes. “NASA will test as high a load as possible to learn what produces structural failure. Any information we learn here will feed directly into the body of information NASA has pulled together over the years on how to analyze structures like this, and of course that’s something that’s shared with industry as well. It’s a win for everybody.”
With Artemis, NASA will explore more of the Moon than ever before, learn how to live and work away from home, and prepare for future human exploration of the Red Planet. NASA’s SLS (Space Launch System) rocket, exploration ground systems, and Orion spacecraft, along with the human landing system, next-generation spacesuits, Gateway lunar space station, and future rovers are NASA’s foundation for deep space exploration.
News Media Contact
Jonathan Deal
Marshall Space Flight Center, Huntsville, Ala.
256-544-0034
jonathan.e.deal@nasa.gov
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Preparations for Next Moonwalk Simulations Underway (and Underwater)
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In preparation for the X-59’s planned first flight this year, NASA and Lockheed Martin successfully completed the aircraft’s engine run tests in January. The engine, a modified F414-GE-100 that powers the aircraft’s flight and integrated subsystems, performed to expectations during three increasingly complicated tests that ran from October through January at contractor Lockheed Martin’s Skunk Works facility in Palmdale, California.
“We have successfully progressed through our engine ground tests as we planned,” said Raymond Castner, X-59 propulsion lead at NASA’s Glenn Research Center in Cleveland. “We had no major showstoppers. We were getting smooth and steady airflow as predicted from wind tunnel testing. We didn’t have any structural or excessive vibration issues. And parts of the engine and aircraft that needed cooling were getting it.”
The tests began with seeing how the aircraft’s hydraulics, electrical, and environmental control systems performed when the engine was powered up but idling. The team then performed throttle checks, bringing the aircraft up to full power and firing its afterburner – an engine component that generates additional thrust – to maximum.
In preparation for the X-59’s planned first flight this year, NASA and Lockheed Martin successfully completed the aircraft’s engine run tests in January. Testing included electrical, hydraulics, and environmental control systems.
Credit: NASA/Lillianne Hammel A third test, throttle snaps, involved moving the throttle swiftly back and forth to validate that the engine responds instantly. The engine produces as much as 22,000 pounds of thrust to achieve a desired cruising speed of Mach 1.4 (925 miles per hour) at an altitude of approximately 55,000 feet.
The X-59’s engine, similar to those aboard the U.S. Navy’s F-18 Super Hornet, is mounted on top of the aircraft to reduce the level of noise reaching the ground. Many features of the X-59, including its 38-foot-long nose, are designed to lower the noise of a sonic boom to that of a mere “thump,” similar to the sound of a car door slamming nearby.
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NASA’s Sustainable Flight Demonstrator project concluded wind tunnel testing in the fall of 2024. Tests on a Boeing-built X-66 model were completed at NASA’s Ames Research Center in California’s Silicon Valley in its 11-Foot Transonic Unitary Plan Facility. Pressure points, which are drilled holes with data sensors attached, are installed along the edge of the wing and allow engineers to understand the characteristics of airflow and will influence the final design of the wing.NASA/Brandon Torres Navarrete Semi-span tests take advantage of symmetry. The forces and behaviors on a model of half an aircraft mirror those on the other half. By using a larger half of the model, engineers increase the number of surface pressure measurements. Various sensors were placed on the wing to measure forces and movements to calculate lift, drag, stability, and other important characteristics.
The semi-span tests follow earlier wind tunnel work at NASA’s Langley Research Center in Hampton, Virginia, using a smaller model of the entire aircraft. Engineers will study the data from all of the X-66 wind tunnel tests to determine any design changes that should be made before fabrication begins on the wing that will be used on the X-66 itself.
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Last Updated Feb 05, 2025 EditorDede DiniusContactSarah Mannsarah.mann@nasa.govLocationArmstrong Flight Research Center Related Terms
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Flight Opportunities is part of the agency’s Space Technology Mission Directorate and is managed at NASA’s Armstrong Flight Research Center.
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Last Updated Feb 04, 2025 EditorLoura HallContactNancy J. Pekarnancy.j.pekar@nasa.gov Related Terms
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