Members Can Post Anonymously On This Site
Lightning in a camera – from above
-
Similar Topics
-
By NASA
Earth (ESD) Earth Explore Climate Change Science in Action Multimedia Data For Researchers About Us 6 min read
NASA Flights Map Critical Minerals from Skies Above Western US
Various minerals are revealed in vibrant detail in this sample mineral map of Cuprite, Nevada, following processing of imaging spectrometer data. USGS On a crystal-clear afternoon above a desert ghost town, a NASA aircraft scoured the ground for minerals.
The plane, a high-altitude ER-2 research aircraft, had taken off early that morning from NASA’s Armstrong Flight Research Center in Edwards, California. Below pilot Dean Neeley, the landscape looked barren and brown. But to the optical sensors installed on the plane’s belly and wing, it gleamed in hundreds of colors.
Neeley’s flight that day was part of GEMx, the Geological Earth Mapping Experiment led by NASA and the U.S. Geological Survey to map critical minerals across more than 190,000 square miles (500,000 square kilometers) of North American soil. Using airborne instruments, scientists are collecting these measurements over parts of California, Nevada, Arizona, and Oregon. That’s an area about the size of Spain.
An ER-2 science aircraft banks away during a flight over the southern Sierra Nevada. The high-altitude plane supports a wide variety of research missions, including the GEMx campaign, which is mapping critical minerals in the Western U.S. using advanced airborne imaging developed by NASA. Credit: NASA/Carla Thomas Lithium, aluminum, rare earth elements such as neodymium and cerium — these are a few of the 50 mineral commodities deemed essential to U.S. national security, to the tech industry, and to clean energy. They support a wide range of technologies from smartphones to steelmaking, from wind turbines to electric vehicle batteries. In 2023, the U.S. imported its entire supply of 12 of these minerals and imported at least 50% of its supply of another 29.
The GEMx team believes that undiscovered deposits of at least some of these minerals exist domestically, and modern mineral maps will support exploration by the private sector.
“We’ve been exploring the earth beneath our feet for hundreds of years, and we’re discovering that we’ve only just begun,” said Kevin Reath, NASA’s associate project manager for GEMx.
The View From 65,000 Feet
To jumpstart mineral exploration, USGS is leading a nationwide survey from the inside out, using tools like lidar and magnetic-radiometric sensors to probe ancient terrain in new detail.
The collaboration with NASA brings another tool to bear: imaging spectrometers. These advanced optical instruments need to stay cold as they fly high. From cryogenic vacuum chambers on planes or spacecraft, they detect hundreds of wavelengths of light — from the visible to shortwave infrared — reflected off planetary surfaces. The technology is now being used to help identify surface minerals across dry, treeless expanses of the Western U.S.
Every molecule reflects a unique pattern of light, like a fingerprint. Processed through a spectroscopic lens, a desert expanse can appear like an oil painting popping with different colorful minerals, including pale-green mica, blue kaolinite, and plummy gypsum.
“We’re not digging for gold. We’re revealing what’s hidden in plain sight,” said Robert Green, a researcher at NASA’s Jet Propulsion Laboratory in Southern California, who helped pioneer spectroscopic imaging at NASA JPL in the late 1970s. Like many of the scientists involved with GEMx, he has spent years surveying other worlds, including the Moon and Mars.
A handful of such instruments exist on Earth, and Green is in charge of two of them. One, called EMIT (Earth Surface Mineral Dust Source Investigation) flies aboard the International Space Station. Surveying Earth’s surface from about 250 miles (410 kilometers) above, EMIT has captured thousands of images at a resolution of 50 by 50 miles (80 by 80 kilometers) in a wide belt around Earth’s mid-section.
The other instrument rides beneath the fuselage of the ER-2 aircraft. Called AVIRIS (Airborne Visible/Infrared Imaging Spectrometer), it’s helping guide geologists to critical minerals directly and indirectly, by spotting the types of rocks that often contain them. It’s joined by another instrument developed by NASA, the MODIS/ASTER Airborne Simulator (MASTER), which senses thermal infrared radiance. Both instruments provide finely detailed measurements of minerals that complement what EMIT sees on a broader scale.
A crew of life support staff prepare pilot Dean Neeley for an ER-2 flight. A specialized suit – similar to an astronaut’s – allows the pilot to work, breathe, and eat at altitudes almost twice as high as a cruising passenger jet. NASA/Carla Thomas Old Mines, New Finds
In and around the multimillion-year-old magmas of the Great Basin of the Western U.S., lithium takes several forms. The silvery metal is found in salty brines, in clay, and locked in more than 100 different types of crystals. It can also be detected in the tailings of abandoned prospects like Hector Mine, near Barstow, California.
Abandoned years before a magnitude 7.1 earthquake rocked the region in 1999, the mine is located on a lode of hectorite, a greasy, lithium-bearing clay. Geologists from USGS are taking a second look at legacy mines like Hector as demand for lithium rises, driven primarily by lithium-ion batteries. A typical battery pack in an electric vehicle uses about 17 pounds (eight kilograms) of the energy-dense metal.
Australia and Chile lead worldwide production of lithium, which exceeded 180,000 tons in 2023. The third largest producer is China, which also hosts about 50% of global lithium refining capacity. Total U.S. production was around 1,000 tons, sourced entirely from a deposit in northern Nevada. Known reserves in the state are estimated to contain more than a million metric tons of lithium, according to data collected by the Nevada Bureau of Mines and Geology.
Mine wastes are also potential sources of lithium, said Bernard Hubbard, a remote sensing geologist at USGS, and many other byproduct commodities that are considered critical today but were discarded by previous generations.
“There are old copper and silver mines in the West that were abandoned long before anyone knew what lithium or rare earth element deposits were,” Hubbard said. “What has been a pollution source for communities could now be a resource.”
Following a winter pause, high-altitude GEMx flights over the American West will resume in the spring of 2025, after which USGS will process the raw data and release the first mineral maps. Already, the project has collected enough data to start producing a complete hyperspectral map of California — the first of its kind.
The value of these observations extends beyond identifying minerals. Scientists expect they’ll provide new insight into invasive plant species, waste from mines that can contaminate surrounding environments, and natural hazards such as earthquakes, landslides, and wildfires.
“We are just beginning to scratch the surface in applying these measurements to help the nation’s economy, security, and health,” said Raymond Kokaly, USGS research geophysicist and lead of the GEMx survey.
More About GEMx
The GEMx research project will last four years and is funded by the USGS Earth Mapping Resources Initiative (EarthMRI), through investments from the Bipartisan Infrastructure Law. The initiative will capitalize on both the technology developed by NASA for spectroscopic imaging as well as the expertise in analyzing the datasets and extracting critical mineral information from them.
Data collected by GEMx is available here.
By Sally Younger
NASA’s Earth Science News Team
Share
Details
Last Updated Dec 05, 2024 Contact Sally Younger Related Terms
Earth Explore More
4 min read Expanded AI Model with Global Data Enhances Earth Science Applications
Article
1 day ago
4 min read NASA AI, Open Science Advance Disaster Research and Recovery
Article
1 week ago
5 min read NASA Data Reveals Role of Green Spaces in Cooling Cities
Article
1 week ago
Keep Exploring Discover Related Topics
Earth Surface and Interior Focus Area
Earth
Your home. Our Mission. And the one planet that NASA studies more than any other.
Climate Change
NASA is a global leader in studying Earth’s changing climate.
Earth Science in Action
NASA’s unique vantage point helps us inform solutions to enhance decision-making, improve livelihoods, and protect our planet.
View the full article
-
By USH
A security camera recently captured an eerie scene that has left people intrigued and spooked. In the footage, recorded at dawn, a mysterious figure dressed in white appears near a large vehicle. What makes the video even stranger is the reaction of two nearby dogs, who seem unusually distressed and unsettled by the presence.
While the exact location in Mexico where this happened hasn’t been confirmed, many are already speculating about the figure’s identity. Some believe it could be La Llorona, the legendary weeping woman from Mexican folklore. La Llorona is said to wander in sorrow, mourning her lost children, and has been the focus of countless ghost stories over the years.
Others have suggested a different explanation, claiming the figure resembles a "nightcrawler," a strange cryptid reportedly known for its bizarre appearance.
Skeptics, however, argue that it might just be a person caught in an unusual moment, and the dogs’ reactions could be explained by their heightened senses picking up on something out of the ordinary. Still, the dogs' unsettling behavior has sparked debate about whether the encounter might have been something paranormal.
For now, the true nature of the figure remains a mystery. View the full article
-
By USH
Over the years, numerous mysterious events have been witnessed in the sky, defying explanation. Recently, yet another unusual sky phenomenon was observed over Southern Australia capturing attention and sparking curiosity.
Video footage reveals what appears to be a dome-shaped structure, with an even stranger detail: lightning seems to bounce off or perhaps even originate from within the dome.
The mysterious formation has led to numerous theories. Some viewers suggest it could be a unique (red) rainbow or a rare weather event like a haboob (sandstorm). Others speculate it might be the result of weather manipulation or even an energy field projected over the region.
Opinions also vary on the lightning, some say it’s bouncing off the dome, while others believe it could be emanating from within. Although it may just be an unusual natural phenomenon, the seemly strange interaction with the lightning remains unexplained.
View the full article
-
-
By NASA
Credit: NASA NASA, on behalf of the National Oceanic and Atmospheric Administration (NOAA), has selected Lockheed Martin Corp. of Littleton, Colorado, to develop a lightning mapping instrument as part of NOAA’s Geostationary Extended Observations (GeoXO) satellite program.
This cost-plus-award-fee contract is valued at approximately $297.1 million. It includes the development of two flight instruments as well as options for two additional units. The anticipated period of performance for this contract includes support for 10 years of on-orbit operations and five years of on-orbit storage, for a total of 15 years for each flight model. The work will take place at Lockheed Martin’s facilities in Sunnyvale, California, and Littleton, Colorado, NASA’s Goddard Space Flight Center in Greenbelt, Maryland, and the agency’s Kennedy Space Center in Florida.
The GeoXO Lightning Mapper will detect, locate, and measure the intensity, duration, and extent of lightning flashes. The instrument will continue critical observations provided by the Geostationary Operational Environmental Satellites-R (GOES-R) Series Geostationary Lightning Mapper. Data from Lightning Mapper will be used to analyze severe storms, increase warning lead time for hazardous weather, and provide earlier indications of impending lightning strikes to the ground. The data will also be used for hurricane intensity prediction, wildfire detection and response, precipitation estimation, and to mitigate aviation hazards.
Forecasters need lightning information from geostationary orbit because the data are available where other sources are more limited, especially over oceans and in mountainous and rural areas. The data are also available more frequently than local radar and fill in radar coverage gaps.
The contract scope includes the tasks and deliverables necessary to design, analyze, develop, fabricate, integrate, test, verify, and evaluate the lightning mapper instrument in addition to supporting the launch; supplying and maintaining the instrument ground support equipment; and supporting mission operations at the NOAA Satellite Operations Facility in Suitland, Maryland.
The GeoXO Program is the follow-on to the GOES-R Series Program. The GeoXO satellite system will advance Earth observations from geostationary orbit. The mission will supply vital information to address major environmental challenges of the future in support of weather, ocean, and climate operations in the United States. The advanced capabilities from GeoXO will help address our changing planet and the evolving needs of the nation’s data users. Both NASA and NOAA are working to ensure these critical observations are in place by the early 2030s when the GOES-R Series nears the end of its operational lifetime.
Together, NOAA and NASA oversee the development, launch, testing, and operation of all the satellites in the GeoXO Program. NOAA funds and manages the program, operations, and data products. On behalf of NOAA, NASA and commercial partners develop and build the instruments and spacecraft and launch the satellites.
For more information on the GeoXO program, visit:
https://www.nesdis.noaa.gov/geoxo
-end-
Liz Vlock
Headquarters, Washington
202-358-1600
elizabeth.a.vlock@nasa.gov
Jeremy Eggers
Goddard Space Flight Center, Greenbelt, Md.
757-824-2958
jeremy.l.eggers@nasa.gov
John Leslie
NOAA’s National Environmental Satellite, Data, and Information Service
202-527-3504
nesdis.pa@noaa.gov
Share
Details
Last Updated Sep 17, 2024 EditorJessica TaveauLocationNASA Headquarters Related Terms
Goddard Space Flight Center GOES (Geostationary Operational Environmental Satellite) GOES-R Kennedy Space Center View the full article
-
-
Check out these Videos
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.