Space Station Instrument Captures Hurricane Waves Rippling Into Space
Finn's Take· TL;DR- NASA's AWE instrument on the ISS discovered hurricanes and tornadoes create atmospheric waves measurable from space over 30-month mission.
- Captured 80 million infrared images revealing how extreme weather generates gravity waves rippling into upper atmosphere and affecting space conditions.
- Findings help scientists understand atmospheric-space connections crucial for protecting GPS, satellites, and communications as extreme weather intensifies globally.
Revolutionary Atmospheric Discovery
After 30 months of groundbreaking observations, NASA's AWE (Atmospheric Waves Experiment) instrument completed its mission on May 21, surpassing its planned two-year mission . The remarkable instrument revealed something extraordinary: extreme weather events like Hurricane Helene and tornado outbreaks generate measurable waves that ripple all the way into space .
Installed on the exterior of the International Space Station since November 2023, AWE studied atmospheric gravity waves, which are giant ripples in the atmosphere caused by strong winds flowing over tall mountains or by violent weather events, such as tornadoes, thunderstorms, and hurricanes . Think of these waves like the ripples you see when you drop a stone in a pond, except they travel vertically through our atmosphere and can affect satellites orbiting Earth.
Capturing the Invisible
The AWE instrument looked for these waves in colorful bands of light in Earth's atmosphere, called airglow . During AWE's 30-month residency on the station, the instrument captured four infrared images every second, tallying more than 80 million nighttime images . This massive dataset provided scientists with unprecedented views of how Earth's weather connects to space.
The timing couldn't have been better for dramatic discoveries. "We've seen atmospheric wave signatures associated with major terrestrial events, which provided a clear example of how intense weather systems can generate measurable upper-atmospheric responses," said AWE's principal investigator, Ludger Scherliess of Utah State University in Logan . One striking image shows waves spreading across Texas and Mexico in near-perfect circles, a sight rarely observed with such clarity prior to the AWE mission .
Space Weather Connection
AWE investigated how atmospheric gravity waves propagate upward to space and contribute to space weather—conditions in space that can disrupt satellites, as well as navigation and communications signals . This research has practical implications for everything from GPS accuracy to satellite communications that millions of people rely on daily.
In a recent study, AWE measurements also revealed the gravity waves with the greatest influence on the upper atmosphere have small horizontal wavelengths, ranging from 30 to 300 kilometers, which AWE was specifically designed to measure . These findings help scientists better understand the invisible forces that shape our planet's relationship with space.
Scientific Legacy and Future
Based on initial data releases, more than 50 science presentations have been delivered worldwide, and many scientific papers are in the process of being published . The mission's success demonstrates how studying Earth's atmosphere from space can reveal connections between weather patterns and space conditions that were previously invisible to researchers.
With its data-collection phase complete, the AWE instrument was turned off to make way for another science experiment that will take its place on the outside of the space station. Called CLARREO Pathfinder, the new instrument will take measurements of sunlight reflected by Earth and the Moon that are five to 10 times more accurate than those from existing sensors . As climate patterns intensify and our reliance on space-based technology grows, understanding these atmospheric connections becomes increasingly vital for protecting both our satellites and our daily communications.