RAISE: Die Dynamik von Weltraumemissionen entschlüsseln – Spurensuche mit Licht

The number of satellites is growing exponentially – and with it the amount of material released during re-entry at an altitude of 100 km. RAISE (Rising Atmospheric Impact of Space Emissions) is investigating the question: What exactly enters our atmosphere as a result – and how does it behave there?

Our innovative approach:

Using a versatile multi-colour lidar system, we are identifying and cataloguing trace elements like never before. By selectively employing different laser wavelengths, we can detect a wide range of atoms, oxides and previously undetected compounds. In plasma wind tunnels, we simulate the extreme conditions of re-entry: how do satellite materials melt, vaporise and burn? At the same time, our team is developing a novel laboratory infrastructure to detect even trace substances with optical precision.

The aim of RAISE:

For the first time, all potential anthropogenic tracers are to be identified and characterised – as the foundation for a global monitoring system. RAISE is thus not only achieving scientific breakthroughs, but also laying the groundwork for sustainable space strategies.

Link to AMILIS:

RAISE identifies what is released – AMILIS monitors how long these substances remain in the atmosphere and how they disperse.

Project Partners:

• Leibniz Institute of Atmospheric Physics (IAP)
• Institute of Space Systems (IRS), University of Stuttgart