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Tech Today: Remote Sensing Technology Fights Forest Fires
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By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Drones were a key part of testing new technology in support of a prescribed burn in Geneva State Forest, which is about 100 miles south of Montgomery, Alabama. The effort is part of the agency’s multi-year FireSense project, which is aimed at testing technologies that could eventually serve the U.S. Forest Service as well as local, state, and other federal wildland fire agencies. From left are Tim Wallace and Michael Filicchia of the Desert Research Institute in Nevada; Derek Abramson, Justin Hall, and Alexander Jaffe of NASA’s Armstrong Flight Research Center in Edwards California; and Alana Dachtler of International Met Systems of Kentwood, Michigan.NASA/Jackie Shuman Advancements in NASA’s airborne technology have made it possible to gather localized wind data and assess its impacts on smoke and fire behavior. This information could improve wildland fire decision making and enable operational agencies to better allocate firefighters and resources. A small team from NASA’s Armstrong Flight Research Center in Edwards, California, is demonstrating how some of these technologies work.
Two instruments from NASA’s Langley Research Center in Hampton, Virginia – a sensor gathering 3D wind data and a radiosonde that measures temperature, barometric pressure, and humidity data – were installed on NASA Armstrong’s Alta X drone for a prescribed burn in Geneva State Forest, which is about 100 miles south of Montgomery, Alabama. The effort is part of the agency’s multi-year FireSense project, which is aimed at testing technologies that could eventually serve the U.S. Forest Service as well as local, state, and other federal wildland fire agencies.
“The objectives for the Alta X portion of the multi-agency prescribed burn include a technical demonstration for wildland fire practitioners, and data collection at various altitudes for the Alabama Forestry Commission operations,” said Jennifer Fowler, FireSense project manager. “Information gathered at the different altitudes is essential to monitor the variables for a prescribed burn.”
Those variables include the mixing height, which is the extent or depth to which smoke will be dispersed, a metric Fowler said is difficult to predict. Humidity must also be above 30% for a prescribed burn. The technology to collect these measurements locally is not readily available in wildland fire operations, making the Alta X and its instruments key in the demonstration of prescribed burn technology.
A drone from NASA’s Armstrong Flight Research Center, Edwards, California, flies with a sensor to gather 3D wind data and a radiosonde that measures temperature, barometric pressure, and humidity data from NASA’s Langley Research Center in Hampton, Virginia. The drone and instruments supported a prescribed burn in Geneva State Forest, which is about 100 miles south of Montgomery, Alabama. The effort is part of the agency’s multi-year FireSense project, which is aimed at testing technologies that could eventually serve the U.S. Forest Service as well as local, state, and other federal wildland fire agencies.International Met Systems/Alana Dachtler In addition to the Alta X flights beginning March 25, NASA Armstrong’s B200 King Air will fly over actively burning fires at an altitude of about 6,500 feet. Sensors onboard other aircraft supporting the mission will fly at lower altitudes during the fire, and at higher altitudes before and after the fire for required data collection. The multi-agency mission will provide data to confirm and adjust the prescribed burn forecast model.
Small, uncrewed aircraft system pilots from NASA Armstrong completed final preparations to travel to Alabama and set up for the research flights. The team – including Derek Abramson, chief engineer for the subscale flight research laboratory; Justin Hall, NASA Armstrong chief pilot of small, uncrewed aircraft systems; and Alexander Jaffe, a drone pilot – will set up, fly, observe airborne operations, all while keeping additional aircraft batteries charged. The launch and recovery of the Alta X is manual, the mission profile is flown autonomously to guarantee the same conditions for data collection.
“The flight profile is vertical – straight up and straight back down from the surface to about 3,000 feet altitude,” Abramson said. “We will characterize the mixing height and changes in moisture, mapping out how they both change throughout the day in connection with the burn.”
In August 2024, a team of NASA researchers used the NASA Langley Alta X and weather instruments in Missoula, Montana, for a FireSense project drone technology demonstration. These instruments were used to generate localized forecasting that provides precise and sustainable meteorological data to predict fire behavior and smoke impacts.
Justin Link, left, pilot for small uncrewed aircraft systems, and Justin Hall, chief pilot for small uncrewed aircraft systems, install weather instruments on an Alta X drone at NASAs Armstrong Flight Research Center in Edwards, California. Members of the center’s Dale Reed Subscale Flight Research Laboratory used the Alta X to support the agency’s FireSense project in March 2025 for a prescribed burn in Geneva State Forest, which is about 100 miles south of Montgomery, Alabama.NASA/Steve Freeman Share
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Last Updated Apr 03, 2025 EditorDede DiniusContactJay Levinejay.levine-1@nasa.govLocationArmstrong Flight Research Center Related Terms
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By NASA
2 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
A NASA F/A-18 research aircraft flies above California near NASA’s Armstrong Flight Research Center in Edwards, California, testing a commercial precision landing technology for future space missions. The Psionic Space Navigation Doppler Lidar (PSNDL) system is installed in a pod located under the right wing of the aircraft.NASA Nestled in a pod under an F/A-18 Hornet aircraft wing, flying above California, and traveling up to the speed of sound, NASA put a commercial sensor technology to the test. The flight tests demonstrated the sensor accuracy and navigation precision in challenging conditions, helping prepare the technology to land robots and astronauts on the Moon and Mars.
The Psionic Space Navigation Doppler Lidar (PSNDL) system is rooted in NASA technology that Psionic, Inc. of Hampton, Virginia, licensed and further developed. They miniaturized the NASA technology, added further functionality, and incorporated component redundancies that make it more rugged for spaceflight. The PSNDL navigation system also includes cameras and an inertial measurement unit to make it a complete navigation system capable of accurately determining a vehicle’s position and velocity for precision landing and other spaceflight applications.
NASA engineers and technicians install the Psionic Space Navigation Doppler Lidar (PSNDL) system into a testing pod on a NASA F/A-18 research aircraft ahead of February 2025 flight tests at NASA’s Armstrong Flight Research Center in Edwards, California.NASA The aircraft departed from NASA’s Armstrong Flight Research Center in Edwards, California, and conducted a variety of flight paths over several days in February 2025. It flew a large figure-8 loop and conducted several highly dynamic maneuvers over Death Valley, California, to collect navigation data at various altitudes, velocities, and orientations relevant for lunar and Mars entry and descent. Refurbished for these tests, the NASA F/A-18 pod can support critical data collection for other technologies and users at a low cost.
Doppler Lidar sensors provide a highly accurate measurement of speed by measuring the frequency shift between laser light emitted from the sensor reflected from the ground. Lidar are extremely useful in sunlight-challenged areas that may have long shadows and stark contrasts, such as the lunar South Pole. Pairing PSNDL with cameras adds the ability to visually compare pictures with surface reconnaissance maps of rocky terrain and navigate to landing at interesting locations on Mars. All the data is fed into a computer to make quick, real-time decisions to enable precise touchdowns at safe locations.
Psionic Space Navigation Doppler Lidar (PSNDL) system installed in a testing pod on a NASA F/A-18 research aircraft ahead of February 2025 flight tests at NASA’s Armstrong Flight Research Center in Edwards, California.NASA Since licensing NDL in 2016, Psionic has received funding and development support from NASA’s Space Technology Mission Directorate through its Small Business Innovative Research program and Tipping Point initiative. The company has also tested PSNDL prototypes on suborbital vehicles via the Flight Opportunities program. In 2024, onboard a commercial lunar lander, NASA successfully demonstrated the predecessor NDL system developed by the agency’s Langley Research Center in Hampton, Virginia.
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Last Updated Mar 26, 2025 EditorLoura Hall Related Terms
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By NASA
Curiosity Navigation Curiosity Home Mission Overview Where is Curiosity? Mission Updates Science Overview Instruments Highlights Exploration Goals News and Features Multimedia Curiosity Raw Images Images Videos Audio Mosaics More Resources Mars Missions Mars Sample Return Mars Perseverance Rover Mars Curiosity Rover MAVEN Mars Reconnaissance Orbiter Mars Odyssey More Mars Missions Mars Home 4 min read
Sols 4484-4485: Remote Sensing on a Monday
NASA’s Mars rover Curiosity acquired this image using its Left Navigation Camera on March 17, 2025 — sol 4483, or Martian day 4,483 of the Mars Science Laboratory mission — at 09:38:17 UTC. NASA/JPL-Caltech Written by Conor Hayes, Graduate Student at York University
Earth planning date: Monday, March 17, 2025
Last week I was in Houston, Texas, at the Lunar and Planetary Science Conference. The mid-March weather in Houston is often more like mid-summer weather here in Toronto, so it has been a bit of a shock coming home to temperatures that are hovering around freezing rather than being in the upper 20s (degrees Celsius, or the low to mid 80s for those of you still using Fahrenheit). Still, Toronto is positively balmy compared to Gale Crater, where temperatures usually range between minus 80°C and minus 20°C (or minus 110°F to minus 5°F) during this part of the year. These cold temperatures and their associated higher demands on the rover’s available power for heating are continuing to motivate many of the decisions that we make during planning.
We received the double good news this morning that the weekend’s drive completed successfully, including the mid-drive imaging of the other side of “Humber Park” that Michelle mentioned in Friday’s blog, and that our estimates of the weekend plan’s power consumption ended up being a little conservative. So we started planning exactly where we wanted to be, and with more power to play around with than we had expected. Yay!
The weekend’s drive left us parked in front of some rocks with excellent layering and interesting ripples that we really wanted to get a closer look at with MAHLI. (See the cover image for a look at these rocks as seen by Navcam.) Sadly, we also ended up parked in such a way that presented a slip hazard if the arm was unstowed. As much as we would have loved to get close-up images of these rocks, we love keeping Curiosity’s arm safe even more, so we had to settle for a remote sensing-only plan instead.
Both the geology and mineralogy (GEO) and the environmental science (ENV) teams took full advantage of the extra power gifted to us today to create a plan packed full of remote sensing observations. Because we’re driving on the first sol of this two-sol plan, any “targeted” observations, i.e. those where we know exactly where we want to point the rover’s cameras, must take place before the drive. The first sol is thus packed full of Mastcam and ChemCam observations, starting with a 14×3 Mastcam mosaic of the area in front of us that’s outside of today’s workspace. Individual targets then get some Mastcam love with mosaics of various ripple and layering features at “Verdugo Peak,” “Silver Moccasin Trail,” and “Jones Peak.” Mastcam and ChemCam also team up on a LIBS target, “Trancas Canyon,” and some more long-distance mosaics of Gould Mesa, a feature about 100 meters away from us (about 328 feet) that we’ll be driving to the south of as we continue to head toward the “boxwork” structures.
After a drive, there often aren’t many activities scheduled other than the imaging of our new location that we’ll need for the next planning day. However, in this plan ENV decided to take advantage of the fact that Navcam observations can take place at the same time that the rover is talking to one of the spacecraft that orbit Mars. This is a useful trick when power is tight as it allows us to do more science without adding additional awake time (since the rover needs to be awake anyway to communicate with the orbiters). Today, it’s being used to get some extra cloud observations right before sunset, a time that we don’t often get to observe. These observations include a zenith movie that looks straight up over the rover and a “phase function sky survey,” which takes a series of nine movies that form a dome around the rover to examine the properties of the clouds’ ice crystals.
The second sol of this plan is much more relaxed, as post-drive sols often are because we don’t know exactly where we’ll be after a drive. Today, we’ve just got our usual ChemCam AEGIS activity, followed by a pair of Navcam cloud and cloud shadow movies to measure the altitude of clouds over Gale. As always, we’ve also got our usual set of REMS, RAD, and DAN activities throughout this plan.
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Last Updated Mar 20, 2025 Related Terms
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