Overview
A NASA sounding rocket has provided the first multi-point look inside the high-altitude, radio-disrupting clouds known as sporadic E layers.
What are sporadic E layers?
These thin veils of metallic haze reside at the edge of space and form from the vaporized dust of burnt-up meteors. They appear unpredictably and dissipate just as quickly.
The sounding rocket measurement
The suborbital research rocket reached the altitude where the E layers occur and collected data at several points simultaneously. This enabled scientists to capture the three‑dimensional structure and dynamics of the layers for the first time.
Implications for communications
Because sporadic E layers can reflect or absorb radio waves, they affect radio communications and navigation systems. The new data should improve the ability to predict their impact.
Outlook
The results demonstrate that multi‑point measurements are essential for resolving the fine‑scale structure of sporadic E layers. Future campaigns could adopt similar techniques to monitor the long‑term variability of these high‑altitude phenomena.