TES collected spectral "signatures," illustrated here, of ozone and other gases in the lower atmosphere. Credit: NASA
On Jan. 31, NASA ended the Tropospheric Emission Spectrometer's (TES) almost 14-year career of discovery. Launched in 2004 on NASA's Aura spacecraft, TES was the first instrument designed to monitor ozone in the lowest layers of the atmosphere directly from space. Its high-resolution observations led to new measurements of atmospheric gases that have altered our understanding of the Earth system.
NASA Study: First Direct Proof of Ozone Hole Recovery Due to Chemicals Ban
01.04.2018 - For the first time, scientists have shown through direct satellite observations of the ozone hole that levels of ozone-destroying chlorine are declining, resulting in less ozone depletion.